Mitsubishi Montero (2004+). Manual - part 1064

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-99

STEP 6. Check the harness wires between valve relay 
connector B-21X terminal 4 and ground.
NOTE: After inspecting valve relay connector B-21X, inspect 
the wire. If valve relay connector B-21X is damaged, repair or 
replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion 

P.00E-2

.Then go to Step 10.

Q: Is the harness wire between valve relay connector 

B-21X terminal 4 and ground damaged?
YES : Repair it and then go to Step 10.
NO :  Go to Step 10.

AC204706

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

5

B-21X

CONNECTOR: B-21X

AB

RELAY BOX CONNECTOR

AC203935

AC

GROUND POINT

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-100

STEP 7. Check the combination meter power supply circuit 
at combination meter connector D-03.
(1) Disconnect the combination meter connector D-03, and 

measure at the harness side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 62 and ground. It 

should be approximately 12 volts (battery positive voltage).

Q: Is the voltage approximately 12 volts (battery positive 

voltage)?
YES : Go to Step 8.
NO :  Go to Step 9.

STEP 8. Check the combination meter connector D-03.
Q: Is the connector damaged?

YES : Repair it and then go to Step 10.
NO :  Replace the combination meter (printed circuit board) 

and go to Step 10.

AC204690AE

CONNECTOR: D-03

D-03 (GR)

HARNESS CONNECTOR: 
COMPONENT SIDE

AC204690 AC

CONNECTOR: D-03

D-03 (GR)

HARNESS CONNECTOR: 
COMPONENT SIDE

D-03

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-101

STEP 9. Check the harness wires between ignition switch 
(IG1) connector D-204 terminal 2 and combination meter 
connector D-03 terminal 62.
NOTE: After inspecting junction block connectors D-208 and 
D-210, inspect the wire. If junction block connectors D-208 and 
D-210 are damaged, repair or replace them. Refer to GROUP 
00E, Harness Connector Inspection 

P.00E-2

. If the connector 

has been repaired or replaced, go to Step 10.
Q: Is the harness wire between ignition switch (IG1) 

connector D-204 terminal 2 and combination meter 
connector D-03 terminal 62 damaged?
YES : Repair it and then go to Step 10.
NO :  Go to Step 10.

AC204709

CONNECTOR: D-204

D-204

AC

2
5

6

3

4

1

HARNESS
CONNECTOR:
COMPONENT
SIDE

AC204690 AC

CONNECTOR: D-03

D-03 (GR)

HARNESS CONNECTOR: 
COMPONENT SIDE

D-03

AC204624 AG

CONNECTORS: D-208, D-210

D-208

JUNCTION BLOCK
(FRONT VIEW)

JUNCTION BLOCK CONNECTOR

D-208

D-210

D-210

1 2 3

4

12

9

8

7

6

10

5

13

11

JUNCTION BLOCK CONNECTOR

ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS

TSB Revision

ANTI-LOCK BRAKING SYSTEM (ABS)

35B-102

STEP 10. Retest the system.
Q: Does the ABS warning light illuminate for 3 seconds 

when the ignition switch is turned to the "ON" position 
with engine stopped or upon start-up?
YES : The procedure is complete.
NO :  Return to Step 1.

INSPECTION PROCEDURE 3: The ABS Warning Light Remains Illuminated after the Engine is Started.

NOTE: This diagnosis procedure is limited to cases where communication with the scan tool is possible 
(M-ASTC-ECU power supply is normal) and no diagnostic trouble code outputs.

AC204875AB

ABS Warning Light Circuit

AC204674

AB

B-21X (VALVE RELAY)

CONNECTOR: B-21X

AC204547AC

CONNECTORS: D-208, D-210

D-208

D-210

JUNCTION BLOCK
(FRONT VIEW)