Operation CHARM: Car repair manuals for everyone.
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Inspection Procedure

WIRING DIAGRAM





PROCEDURE
1. Check voltage between terminal ACT of engine control module and body ground.
- Turn up the floor mat on the passenger side.
- Turn ignition switch ON.




- Measure voltage between terminal ACT of engine control module and body ground when A/C switch is turned to ON.
OK if voltage is 9 - 14 volts.
^ If OK check and replace engine control module.
^ If not OK proceed to step 2.
2. Check for open and short in harness and connector between engine control module and A/C amplifier.
^ If OK check and replace A/C amplifier.
^ If not OK repair or replace harness or connector.