ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-145
Troubleshooting
Step Action Yes No
1Was “Engine and Emission Control System
Check” performed?
Go to Step 2. Go to “Engine and Emis-
sion Control System
Check”.
2 Battery voltage supply circuit check
1) Disconnect connectors from ECM with igni-
tion switch turned OFF.
2) Remove ECM from vehicle body and then
connect connectors to ECM.
3) While engine running, check voltage
between “E21-16” and ground.
Is voltage 10 – 14 V?
Poor “E21-16” connection
or intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection” in Section 0A.
If wire and connections
are OK, substitute a
known-good ECM and
recheck.
“DOME RADIO” fuse
blown “WHT” or “WHT/
BLU” wire circuit open or
short.
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