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.