Quick Test With Lamp

Fault Symptom.
Engine fails to start.

Diagnostic Procedure.
1. Check the fuses
- Check that the fuses are intact:
^ MAXI fuse 2 (+30 circuit, main relay and fuel pump relay power supply)
^ 28 (+30 circuit, control module power supply)
^ 17 (+15 circuit, control module power supply via anti-theft alarm)
^ 32 (fuel pump relay, power supply for fuel pump)
^ 16B (power supply from main relay)

Are the fuses intact?
YES: Continue with point 2.
NO: Change any blown fuses and start the engine. Drive the car and check whether the fuses blow.

2. Check the control module's power supply
- Turn the ignition switch to the ON position.
- Check the fuel level.
- Check that the CHECK ENGINE lamp (MIL) light up and stays on.

Did the CHECK ENGINE lamp (MIL) come on?
YES: Continue with point 3.
NO: The control module has no power supply from the +15 or +30 circuits.
Continue fault diagnosis in the Remote Controlled Anti-Theft Alarm.





3. Check the performance of the crankshaft position sensor
- The diagnostic trouble code, if any, which causes the CHECK ENGINE lamp (MIL) to light up must be cleared with the ISAT scan tool.
- Run the starter motor.
- Check whether the CHECK ENGINE lamp (MIL) goes out during starter motor cranking.

Did the CHECK ENGINE lamp (MIL) go out?
YES: Continue with point 4.
NO: If the CHECK ENGINE lamp (MIL) did not go out, the control module is receiving no information from the crankshaft position sensor. Carry out fault diagnosis under as described for diagnostic trouble code P0336.

4. Check the power supply from the main relay
- Unplug the IAC valve's 3-pin connector.
- Turn the ignition switch to the ON position.
- Connect the test lamp to pin 2 and battery negative (B-).

Did the lamp light up?
YES: Continue with point 5.
NO: See fault diagnosis for the main relay.





5. Check the ignition coil module's power supply
- Unplug the ignition coil module's 4-pin connector.
- Turn the ignition switch to the ON position.
- Connect the test lamp to pin 4 and battery negative (B-).

The test lamp should light up.

Did the test lamp light up?
YES: Continue with point 6.
NO: Repair or replace the lead between pin 4 of the 4-pin connector and crimped connection A.





6. Check the fuel pump circuit
- Remove fuse 32.
- Connect the test lamp to the fuse's input and output contacts.
- Run the starter motor.

The test lamp should light up.

Did the test lamp light up?
YES: Check the fuel pressure.
NO: Check the fuel pump relay.