Mitsubishi Montero (2002-2004). Manual — part 1056
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-95
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 AB
COMBINATION METER
CONNECTOR
D-03
CONNECTOR: D-03
D-03 (GR)
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-96
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
. 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-97
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)
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
TSB Revision
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-98
.
CIRCUIT OPERATION
The ABS warning light power is supplied from the
ignition switch. The M-ASTC-ECU grounds the circuit
to illuminate the light. The light also illuminates when
the valve relay is switched to OFF.
.
TECHNICAL DESCRIPTION (COMMENT)
The short circuit of ABS warning light circuit is con-
sidered to be the cause. The failure of valve relay
OFF can be suspected as the cause, but in this case
DTC 52 would be output.
.
TROUBLESHOOTING HINTS
• Damaged wiring harness
• Malfunction of M-ASTC-ECU
.
AC204546 AB
CONNECTOR: D-03
D-03 (GR)
AC203901AF
CONNECTOR: E-120
E-120
AC204385
CONNECTORS: E-108, E-110
AE
E-110
E-108(B)
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