Operation CHARM: Car repair manuals for everyone.
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Inspection Procedure






PROCEDURE
1. CHECK VOLTAGE BETWEEN TERMINALS FC OF ECM CONNECTOR AND BODY GROUND.
- Remove glove compartment.
- Turn ignition switch ON.



- Measure voltage between terminal FC of ECM connector and body ground.

Voltage: 9 - 14 volts

- If not OK proceed to step 2.
- If OK check and replace ECM.

2. CHECK FOR ECM POWER SOURCE CIRCUIT.
- If OK proceed to step 3.
- If not OK repair or replace.

3. CHECK CIRCUIT OPENING RELAY.
- Remove glove compartment.
- Remove circuit opening relay from relay box No. 6.



- Check continuity between terminals of circuit opening relay shown.

Terminals 1 and 2: Open
Terminals 2 and 4: Continuity
Terminals 3 and 6: Continuity


- Apply battery voltage between terminals 3 and 6.
- Check continuity between terminals 1 and 2.

Terminals 1 and 2: Continuity

- If OK proceed to step 4.
- If not OK replace circuit opening relay.

4. CHECK FOR OPEN IN HARNESS AND CONNECTOR BETWEEN EFI MAIN RELAY AND CIRCUIT OPENING RELAY, CIRCUIT OPENING RELAY AND ECM.
- If OK proceed to step 5.
- If not OK repair or replace harness or connector.

5. CHECK FUEL PUMP.
- If OK check for open in harness and connector between circuit opening relay and fuel pump, fuel pump and body ground.
- If not OK replace fuel pump.