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Mitsubishi Galant 9G. Manual - part 1547
COMBINATION METER ASSEMBLY
TSB Revision
CHASSIS ELECTRICAL
54A-60
Past trouble
• Carry out diagnosis with particular emphasis on
connector(s) or wiring harness in the CAN bus
lines between the ABS-ECU and the combination
meter, and the power supply system to the
ABS-ECU. For diagnosis procedures, refer to
"How to cope with past trouble" (Refer to GROUP
00, How to Use Troubleshooting/Inspection Ser-
vice Points
NOTE: For a past trouble, you may not find it by
the MUT-III CAN bus diagnostics even if there is
any failure in CAN bus lines. In this case, refer to
GROUP 00, How to Use Troubleshooting/Inspec-
tion Service Points
−
How to Cope with Intermit-
tent Malfunction
.) and check the CAN
bus lines. You can narrow down the possible
cause of the trouble by referring to the DTC,
which is set regarding the CAN communica-
tion-linked ECUs (Refer to GROUP 54C, CAN
bus line Diagnostics Flow
).
.
TROUBLESHOOTING HINTS
• The wiring harness or connectors may have
loose, corroded, or damaged terminals, or termi-
nals pushed back in the connector
• Malfunction of ABS-ECU
• Malfunction of combination meter
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (MUT-III Sub Assembly)
• MB991824: Vehicle Communication Interface (V.C.I.)
• MB991827: MUT-III USB Cable
• MB991910: MUT-III Main Harness A (Vehicles with CAN
communication system)
STEP 1. Using scan tool MB991958, diagnose the CAN bus
line.
Use scan tool MB991958 to diagnose the CAN bus lines.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to "ON" position.
(3) Diagnose the CAN bus line.
Q: Is the check result satisfactory?
YES : Go to Step 2.
NO : Repair the CAN bus lines (Refer to GROUP 54C,
Diagnosis
− Can Bus Diagnostic Chart
). On
completion, go to Step 6.
AC305412
AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827