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TM9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
D. CHART -8 - NO “CHECK GAUGES” LIGHT (CGL) DURING BULB CHECK (Cont’d)
STEP/SEQUENCE
C8-7
Check ECM
Connectors
l Check terminals at both 5-way
power harness and vehicle
harness connectors (both ECM
and harness side) for damage;
bent, corroded, and unseated
pins or sockets. Pay close
attention to terminals B2 and
B3 of vehicle harness connector
and D and E power harness.
C 8-30
Verify Repairs
l Turn ignition off.
l Reconnect all connectors.
l Turn ignition on.
l Clear codes.
l Turn ignition off.
l Turn ignition on while at same
time observing “Check Gauges”
light.
Terminals and
connectors
are okay.
Problem found.
“Check Gauges”
light comes on for
up to 5 seconds
then goes out.
“Check Gauges”
light come on
and stays on.
Replace ECM (para 7-29.1).
Then go to C8-30.
Repair terminals/connectors
(para 7-77). Then go to C8-30.
Repairs are complete.
All system diagnostics are
complete. Please review this
section from the first step to find
error.
H-89
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