Test 8 - Failure to Start Test

FAILURE TO START TEST





1. Check that there is sufficient battery voltage (12.4v) for the cranking and ignition systems.
2. Crank the engine for five seconds while monitoring voltage at the coil positive terminal.
- If the voltage remains near zero during the entire period of cranking refer to TEST 9 to test the Auto Shut-down Relay (ASD).
- If voltage is at "near battery" voltage and drops to zero after 1-2 seconds of cranking refer to COMPUTERIZED ENGINE CONTROLS/DIAGNOSIS AND TESTING for diagnosis of reference pickup circuit.
- If voltage remains at "near battery" voltage during the entire 5 seconds go to next step.

14-Way Single Module Engine Controller:

3. Remove the 14-way connector from the Single Module Engine Controller (SMEC). Check the connector for any spread terminals.
4. Remove the leads to the positive terminal of the coil and connect a jumper wire between battery positive and coil positive terminals.

Test Jumper:

14-Way Single Module Engine Controller:

5. Momentarily ground terminal 12 of the 14-way connector with the special jumper. When the ground is removed a spark should be generated.
6. If a spark is generated refer to COMPUTERIZED ENGINE CONTROLS/DIAGNOSIS AND TESTING for diagnosis of the SMEC.
7. If no spark is seen, use the jumper to ground the coil negative terminal directly.
- If spark is produced, check wiring harness for an open condition and repair as necessary.
- If no spark is produced, replace the ignition coil.