ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-41
TABLE A-2 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK – LAMP
REMAINS “ON” AFTER ENGINE STARTS
WIRING DIAGRAM/CIRCUIT DESCRIPTION – Refer to table A-1.
INSPECTION
STEP ACTION YES NO
1 Diagnostic Trouble Code (DTC) check
1) Check DTC referring to DTC CHECK section.
Is there any DTC(s)?
Go to Step 2 of ENGINE
DIAG. FLOW TABLE.
Go to Step 2.
2 DTC check
Start engine and recheck DTC while engine
running.
Is there any DTC(s)?
Go to Step 3.
3 MIL Circuit check
1) Turn OFF ignition switch.
2) Disconnect connectors from ECM (PCM).
Does MIL turn ON at ignition switch ON?
“V/Y” wire circuit
shorted to ground.
Substitute a known-good
ECM (PCM) and
recheck.
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