Mitsubishi Colt Ralliart. Manual - part 240

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-52

(4) Measure the voltage between terminal 20 and 

earth.

OK: 10 V or more

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

STEP 4. Check the harness wire between the 
ABS-ECU connector A-05 terminal 20 and 
ignition switch (IG1).

NOTE: 

After inspecting connector B-110 and B-129, inspect 
the wire. If connector B-110 or B-129 is damaged, 
repair or replace it. 

Q: Is the harness wire between the ABS-ECU 

connector A-05 terminal 20 and ignition switch 
(IG1) damaged?
YES : 

Repair the harness wire and then go to Step 

7.

NO : 

Go to Step 5.

AC313972 BT

Check connector
 (Harness side)

AC313863AB

Connector: A-05

Harness side

A-05(B)

AC313870AI

Connector: B-110

Junction Block (Front view)

Junction block side

12

5

9

8

1 2

1011

3 4

14

13

6 7

AC313872AJ

Connector: B-129

Junction Block (Rear view)

Junction block side

Main

Index

Group

TOC

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-53

STEP 5. Measure the resistance at ABS-ECU 
connector A-05.

(1) Disconnect the connector A-05, and connect 

special tool ABS Check Harness (MB991951) to 
the wiring harness-side connector.
NOTE: Do not connect special tool ABS Check 
Harness (MB991951) to the ABS-ECU.

(2) Measure the resistance between terminal 23 and 

earth.

OK: 5 

Ω or less

Q: Is the result normal?

YES : 

Go to Step 7.

NO : 

Go to Step 6.

STEP 6. Check the harness wire between the 
ABS-ECU connector A-05 terminal 23 and body 
earth.

Q: Is the harness wire between the ABS-ECU 

connector A-05 terminal 23 and body earth 
damaged?
YES : 

Repair the harness wire and then go to Step 

7.

NO : 

Go to Step 7.

AC313863AB

Connector: A-05

Harness side

A-05(B)

AC314249AB

ABS-ECU

MB991951

Check connector

A-05 Harness connector

AC313972BH

Check connector
 (Harness side)

AC313863AB

Connector: A-05

Harness side

A-05(B)

Main

Index

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TOC

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-54

STEP 7. Check whether the diagnosis code is 
reset.

CAUTION

Before connecting or disconnecting the 
M.U.T.-III, turn the ignition switch to the "LOCK" 
(OFF) position.
Check again if the diagnosis code is set.
(1) Turn the ignition switch to the "ON" position.

(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF) 

position.

(4) Turn the ignition switch to the "ON" position.
(5) Drive the vehicle at 6 km/h or more.
(6) Check if the diagnosis code is set.
(7) Turn the ignition switch to the "LOCK" (OFF) 

position.

(8) Disconnect M.U.T.-III.

Q: Is code No.C1861 set?

YES : 

Replace the hydraulic unit (integrated with 

ABS-ECU) (Refer to 

P.35B-78

).

NO : 

The malfunction is intermittent. Refer to 
GROUP 00, How to Use 
Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunction 

P.00-13

.

AC206895

AC

Diagnosis

connector

MB991827

MB991824 

MB991910

Main

Index

Group

TOC

TROUBLESHOOTING

ANTI-SKID BRAKING SYSTEM (ABS)

35B-55

Code No.U1073: Trouble in CAN bus system

FUSIBLE
LINK

ENGINE-CVT-ECU

DIAGNOSIS
CONNECTOR

FRONT SIDE

COMBINATION METER

ABS-ECU

6

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

CAN Communication Circuit

Main

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