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					ABS




      121
                     ABS
                                                                     FR O M PO W ER SO U RC E SYS TEM (SEE P AG E 5 2)


                                                                                                 1



                                                                                                                 60 A
                                                                                                                 ABS

                                         B −W
                                                                                                 2

                                                                                                     2
                                                                                        B− W
                                                                     E8

                                                           B−W
                                                                                                                                                                                                                R −L

          2 EA3                                          1 EA 3             20     IH1
            B−W




                                                           B−W




                                                                                  R−L
                     A 6    A ,A 7            B
           1 A       AB S RE LA Y                         2 B                    4 B
                                                                                                                         A 4     A ,A5         B
        6 GN D +BM                                       +BS                      W
                                                                                                                         A BS A CTU ATO R
        B



                                                                                                                                                                                                            M
W−B




                                                                                                                   BS     S FR          SFL        SR R            A ST       MT             BM      G ND
           BM        MR          R−               SR           BS                                                  4 A         1 B       4 B          3 B           2 B        5 B           3 A      1 A
           2 A       4 A         3 A              1 B          5 B
                                                                                                    B −L




                                                                                                                                                                                                       W−B
                                                                                                                                                                                   L−W



                                                                                                                                                                                              B− R
                                                                                                                                                       L− R



                                                                                                                                                                     L− Y
                                                                                                                                          LG
                                                                                                                               L
            B− R




                                  G −Y



                                                  G −B
                      G




                                                                                                 B− R

                                                                                                 W −B
 E2 3


                     23 B        24 B         11 B                                                                             1 B      13 B     26 B    18 B      6 B
                            MR           R−              SR                                                                          SFR     S FL     S RR    AS T     MT

                                                                                 A1 2     A , A13        B
                                                                                 ABS E C U




          GN D        GND                                            F L+                                FL −             F SS                 FR +                                F R−
           2 B         15 B                                           9 B                                22 B              10 B                16 B                                    3 B
                                                                                                                               BR
            BR




                           BR




                                                                                        (SHIEL D ED)                                                              (SH IEL D ED )
                I3
                                                                                                                                 I3
                                                                       V




                                                                                                             P




                                                                                                                                                   B




                                                                                                                                                                                         Y




                                                                     2 Bd 1                              4 Bd 1                                1 Bd 1                              3 Bd 1
                                                                                                                                                   W




                                                                                                                                                                                         B
W− B




            BR




                                                                       W




                                                                                                             B




                                                                                                                                               1 Be 1                              2 Be 1
                                                                                                                                                   W




                                                                                                                                                                                         B




                                                                                  2                      1                                                    1                    2


                                                                                      A 23                                                                    A24
                                                                                      A BS S PEED                                                             ABS S PEED
                                                                                      S EN SO R FR ON T                                                       SEN SO R FR O NT
                                                                                      LH                                                                      RH
   ID           IE




122
                                                                                                                    FR OM PO W ER SO URC E SYSTEM (SEE PAG E 5 2)


                                                                                                                      1                                                      1                         1                         1




                                                                                                                                                                                                                         1 5A ECU− IG
                                                                                                                                                                       10 A STOP




                                                                                                                                                                                                 10 A ECU−B




                                                                                                                                                                                                                                                   FUS E BLO CK
                                                                                                                 10 A GAUG E




                                                                                                                                                                                                                                                   F11
                                                                                                                      3                                                      2                         2                         3




                                                                                                                 Y
                                                                                                    CON NECTOR
R−L                                                                                                                   A




                                                                                                    JUNCTIO N




                                                                                                                                                                                                              CO NN ECTO R
                                                                                                                                                                                                                                B
                                                                                                                                                                                                                                                                    15




                                                                                                                                                                                                              J UN CTIO N
                                                                                                                                                                                                                                                   B−W
               D 1                                                                                                                                                                                                                                                  ID2




                                                                                                    J1
               DATA LIN K                                                                                             A




                                                                                                                                                                                                                                                                                      B− W
               CO NN EC TOR 1                     23




                                                                                                                                                                                                              J6
                                                                                                                                                                                                                                B




                                                                                                                 Y
                                              WB




                                                                                                                                                           CO M BINATIO N M ETER
                                                                                                             5                 A                                                                                                                                                      4




                                                                                                                                                                           G− O




                                                                                                                                                                                                     B−R
                                                                                                                                                           C10 A , C 11 B
                                                                                                                                                                                                                                                                             IG
             TS                    TC         WA             E1                                                                                                                                                                                                   A22
                                                                                                                                                                                                                                                                  ABS DECEL ER ATIO N SEN SOR
                                                                                                    CENTER
          16                     11               22
                                                                                                    LOCK
                                                                                                    DIFF.
                                                                                                                                                                             2                                                                           GS1                  GS2                  GS T          G ND
                                                                                   ABS
          GR− R




                                 B− Y




                                                                                                                                                                                                                                                         3                    2                    1             6
                                                  O




                                                                                                                                              STO P L IG HT SW




                                                                                                                                                                                                                                                                                                                 W−B
                                                                                                                                                                                                                              B− W




                                                                                                                                                                                                                                                                                                  Y−R
                                                                                                                                                                                                                                                                             Y− B
                                                                                    4 A                          2 B




                                                                                                                                                                                                                                                        Y
                                                                                                                   P− B




  13         IH 1           11    IH 1       23    IH1
                                                                                                        P−B                                   S13                                                                                                 14       ID3          13    ID 3           12     ID3
                                                                                                                               16
                                                                   BR−B                                                                                                      1
                                                  O




                                                                                                                 P− B
          G R− R




                                                                                                                                                                                                                                                                                                  Y −R
                                 B−Y




                                                                                                                                                                                                                                                                             Y−B
                                                   I5




                                                                                                                                                                                                                                                        Y
                                                                                                                                                                           G−W




                                                                                       TO CENTER
                                                  O




                                                                                       DIFF. LOCK
                                                                                    INDICATOR SW
      15 A                       5 B          13 A                                                           19 B                                                      6 A                    25 B                     12 B                        12 A                      3 A              10 A
                   TS                   TC               W                                                                          EXI                                            STP                        BAT                        +B                       GS1               G S2                  G ST




                                                                                                                                                                                                                                                  A12        A , A13          B
                                                                                                                                                                                                                                                  ABS ECU
                   RL−                                  R L+                 RSS                    R R−                                                   RR +                                          PKB
          1 A                                     9 A                  7 A               16 A                                                 8 A                                        14 A

                            (SH IE LDED)                                                                    (SHIEL D ED)
                                                                                                                                                                                             R−B
          W




                                                                                             G
                                                  R




                                                                                                                                                 L




                                                                        I3


      2      ID 3                             3    IDE            11    ID3              4    ID3                                         5        ID3                                                           R−B
                                                                                                                                                                                               I6
                            (SH IE LDED)                                                                    (SHIEL D ED)                                                                                                                 1
          W




                                                                                             G
                                                  R




                                                                                                                                                 L




                                                                                                                                                                                                                                                   B1
                                                                                                                                                                                                                                                   B RA K E FL UID
                                                                                                                                                                                             R −B




                                                                                                                                                                                                                                                   L EVEL
                                                                                                                                                                                                                                                   W ARN IN G SW
      5      BQ2                             4     BQ2             6 BQ2                 2 BQ2                                            1        BQ2                                                                                   2
                            (SH IE LDED)                                                                    (SHIEL D ED)
                                                                                                                                                                                                                                        W−B




                                                                                                                                                                                                                                                                                                  BR−B




                                                                                                                                                                                         9     ID2
                                                                                                                                                                                                                                                                                                                 W−B
          W




                                                                                             G
                                                  R




                                                                                                                                                 L




                                                                        B3 1                                                                                                                                                            A
                                                                                                                                                                                                                                                   J2
                                                                                                                                                                                                                                                   JUNCTION
                                                                                                                                                                                             R−W




                                                                                                                                                                                                                                                   CONNECTOR
      4 Bh1                                  3     Bh1             5 Bh1                 2 Bh1                                            1          Bh1                                                                                A
                                                                                                                                                                                                                                        W−B




                            (SH IE LDED)                                                                    (SHIEL D ED)
                                                                                             Y− G
          W




                                                  R




                                                                                                                                                 L




                                                                                                                                                                                             1
                                                                        B2 4                                                                                                                                                              I12
      1      Bf1                              2    Bf1                                   1 Bg1                                            2 Bg1                               P4
                                                                                                                                                                                                                                                                        WB




                                                                                                                                                                              PARKI NG
                                                                                                                                                                                                                                        WB




                                                                                                                                                                              BRAKE SW


                        1                    2                                                          1                                 2                                                                                                  ID                              IE                          EC       BF

                    A2 5                                                                             A2 6
                    ABS SPEED SEN SOR                                                                ABS S PEED SENSO R
                    REAR L H                                                                         R EAR RH



                                                                                                                                                                                                                                                                                                                        123
              ABS
        SYSTEM OUTLINE
 THIS SYSTEM CONTROLS THE RESPECTIVE BRAKE FLUID PRESSURES ACTING ON THE DISC BRAKE CYLINDERS OF THE RIGHT FRONT
 WHEEL. LEFT FRONT WHEEL AND REAR WHEELS WHEN THE BRAKES ARE APPLIED IN A PANIC STOP SO THAT THE WHEELS DO NOT
 LOCK. THIS RESULTS IN IMPROVED DIRECTIONAL STABILITY AND STEERABILITY DURING PANIC BRAKING.

1. INPUT SIGNAL
  (1) SPEED SENSOR SIGNAL
      THE TOP SPEED OF THE WHEELS IS DETECTED AND INPUT TO TERMINALS FL+, FR+, RL+ AND RR+ OF THE ABS ECU.
  (2) STOP LIGHT SW SIGNAL
      A SIGNAL IS INPUT TO TERMINAL STP OF THE ABS ECU WHEN BRAKE PEDAL IS DEPRESSED.
  (3) PARKING BRAKE SW SIGNAL
      A SIGNAL IS INPUT TO TERMINAL PKB OF THE ABS ECU WHEN THE PARKING BRAKE SW IS ON.
  (4) DECELERATION SENSOR SIGNAL
      THE DEGREE OF VEHICLE DECELERATION IS DETECTED AND INPUT TO TERMINAL GS1, GS2 AND GST OF THE ABS ECU.
  (5) TRANSFER CONTROL SIGNAL
      WHILE THE TRANSFER SHIFT LEVER IS IN L4 POSITION, THE CENTER DIFF. LOCK INDICATOR SW DETECTS A SIGNAL OF
      CENTER DIFF. LOCK AND THE SIGNAL IS INPUT TO TERMINAL EXI OF THE ABS ECU.

2. SYSTEM OPERATION
 (TRANSFER L4 POSITION)
 WHEN THE TRANSFER SHIFT LEVER IS MOVED TO L4 POSITION, THE CENTER DIFF. IS LOCKED, THEN THE ABS IS NOT IN
 OPERATION AND THE ABS WARNING LIGHT IS LIGHTED UP.
 (TRANSFER EXCEPT L4 POSITION)
 DURING SUDDEN BRAKING, THE ABS ECU WHICH HAS SIGNALS INPUT FROM EACH SENSOR, CONTROLS THE CURRENT TO THE
 SOLENOID INSIDE THE ACTUATOR, AND CAUSES THE HYDRAULIC PRESSURE ACTING ON EACH WHEEL CYLINDER ESCAPE TO THE
 RESERVOIR. THE PUMP INSIDE THE ACTUATOR IS ALSO OPERATING AT THIS TIME, AND IT RETURNS THE BRAKE FLUID FROM THE
 RESERVOIR TO THE MASTER CYLINDER, PREVENTING LOCKING OF THE VEHICLE WHEELS. IF THE ECU JUDGES THAT THE HYDRAULIC
 PRESSURE ACTING ON THE WHEEL CYLINDER IS INSUFFICIENT, THE CURRENT ACTING ON THE SOLENOID IS CONTROLLED AND THE
 HYDRAULIC PRESSURE IS INCREASED. HOLDING OF THE HYDRAULIC PRESSURE IS ALSO CONTROLLED BY THE ECU, BY THE SAME
 METHOD AS ABOVE. BY REPEATED PRESSURE, REDUCTION, HOLDING AND INCREASED ARE REPEATED TO MAINTAIN VEHICLE
 STABILITY AND IMPROVE STEERABILTY DURING SUDDEN BRAKING.


       SERVICE HINTS
 A12 (A) , A13 (B) ABS ECU
  (CONNECTOR THE ECU CONNECTOR)
  (A) 15-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE DATA LINK CONNECTOR 1 TS-E1
                       NOT CONNECTED
  (B) 5-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE DATA LINK CONNECTOR 1 TC-E1
                       NOT CONNECTED
  (B) 1-GROUND :
  (B) 6-GROUND :
  (B) 18-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION AND THE ABS WARNING LIGHT GOES OFF
  (B) 26-GROUND :
  (B) 13-GROUND :
  (B) 2-GROUND : ALWAYS CONTINUITY
  (B) 15-GROUND : ALWAYS CONTINUITY
  (B) 12-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
  (A) 6-GROUND : APPROX. 12 VOLTS WITH THE BRAKE PEDAL DEPRESSED
  (B) 25-GROUND : ALWAYS APPROX. 12 VOLTS
  (A) 14-GROUND : APPROX. 12 VOLTS WITH THE ENGINE RUNNING AND PARKING BRAKE LEVER RELEASED OR BRAKE FLUID
                       LEVEL WARNING SW ON
  (DISCONNECT THE ECU CONNECTOR)
  (B) 1-(B) 18 : APPROX. 6 Ω
  (B) 13-(B) 18 : APPROX. 6 Ω
  (B) 26-(B) 18 : APPROX. 6 Ω
  (B) 9-(B) 22 : 0.9-1.8 KΩ
  (B) 16-(B) 3 : 0.9-1.8 KΩ
  (B) 11- (B) 24 : 60-100 Ω
  (B) 23-(B) 24 : 50-80 Ω
  (A) 1-(A) 9 : 0.5-1.6 KΩ
  (A) 16-(A) 8 : 0.5-1.6 KΩ


124
            : PARTS LOCATION
  CODE                          SEE PAGE                 CODE               SEE PAGE                   CODE                 SEE PAGE
A4          A        22                                      A23       26                              D1       22
A5          B        22                                      A24       26                              F11      25
A6          A        22                                      A25       26                               J1      25
A7          B        22                                      A26       26                               J2      25
A12         A        24                                      B1        22                               J6      25
A13         B        24                                C10         A   24                              P4       27
      A22            26                                C11         B   24                              S13      25

            : RELAY BLOCKS
CODE                 SEE PAGE       RELAY BLOCKS (RELAY BLOCK LOCATION)
  2             18                  R/B NO. 2 (FRONT SIDE OF LEFT FENDER)

            : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE                 SEE PAGE       JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
 EA3            30                  COWL WIRE AND ENGINE ROOM MAIN WIRE (LEFT FENDER)
 ID2
                32                                      NO
                                    COWL WIRE AND FLOOR NO. 1 WIRE (LEFT KICK PANEL)
 ID3
 IH1            32                  ENGINE WIRE AND COWL WIRE (BEHIND GLOVE BOX)
 BQ2            34                  FLOOR NO. 3 WIRE AND FLOOR NO. 1 WIRE (LEFT QUARTER PANEL INNER)
 Bd1            36                  COWL WIRE AND SPEED CONTROL SENSOR NO. 1 WIRE (LEFT KICK PANEL)
 Be1            36                  SPEED SENSOR NO. 2 WIRE AND SPEED SENSOR NO. 1 WIRE (FRONT AXLE HOUSING LH)
 Bf1            36                  FRAME NO. 2 WIRE AND SPEED SENSOR NO. 3 WIRE (REAR AXLE HOUSING LH)
 Bg1            36                  FRAME NO. 2 WIRE AND SPEED SENSOR NO. 4 WIRE (REAR AXLE HOUSING RH)
 Bh1            36                  FLOOR NO. 3 WIRE AND FRAME NO. 2 WIRE (LEFT QUARTER PANEL INNER)

            : GROUND POINTS
CODE                 SEE PAGE       GROUND POINTS LOCATION
  EC            30                  AIR INTAKE CHAMBER
  ID            32                  LEFT KICK PANEL
  IE            32                  RIGHT KICK PANEL
  BF            34                  UNDER THE CENTER CONSOLE BOX

            : SPLICE POINTS
CODE                 SEE PAGE       WIRE HARNESS WITH SPLICE POINTS         CODE            SEE PAGE     WIRE HARNESS WITH SPLICE POINTS
 E8             30                  ENGINE ROOM MAIN WIRE                     I6
                                                                                       32                COWL WIRE
 E23            30                                                           I12
  I3                                COWL WIRE                                B24       36                FLAME NO. 2 WIRE
                32
  I5                                                                         B31       36                FLOOR NO. 3 WIRE




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