ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-57
2 MIL Circuit Check
1) Turn ignition switch to OFF position.
2) Remove combination meter referring to “Combination
Meter Removal and Installation” in Section8.
3) Disconnect connectors from ECM.
4) Measure resistance between “PPL/WHT” wire terminal
of combination meter connector and body ground.
Is resistance infinity?
Go to Step 3. “PPL/WHT” wire cir-
cuit shorted to
ground.
3 MIL Circuit Check
1) Connect connectors to combination meter.
Does MIL turn ON at ignition switch turned ON?
Replace combina-
tion meter.
Substitute a known-
good ECM and
recheck.
Step Action Yes No
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