Signal Too High. Permanent Fault

Signal too high. Permanent fault

Checking ignition coil








- Ignition off.
- Disconnect the ignition coil connector.
Connect an ohmmeter between the ignition coil terminals 1 and 2 (ignition coil side).









The ohmmeter should read approximately 0.5ohms.

OK - Checking the signal cable

Not OK - Checking ignition coil

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Checking the signal cable




- Ignition on.
Check the cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38), #1 (ECM-3A) for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.













The voltmeter should read battery voltage for 2 seconds immediately the ignition is switched on.

OK - Checking ignition coil

Not OK - Checking ignition coil

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Checking ignition coil
Connect an ohmmeter between the ignition coil terminals 1 and 2 (ignition coil side).









The ohmmeter should read approximately 0.5ohms.

OK - Checking ignition coil

Not OK - Checking ignition coil

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Checking ignition coil
Try a new ignition coil according to Ignition coil(s), replacement Replacing Ignition Coils.

Select Continue.

Continue - Verification

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Checking ignition coil








- Ignition off.
Check the cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38) or #1 (ECM-3A) for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault and for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.









Select Continue.

Continue - Verification

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Checking ignition coil








- Ignition on.
Check the cable between ignition coil connector terminal 1 and system relay 2/14 base terminal 3 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Remedy as necessary.









Select Continue.

Continue - Verification

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Verification








- Reconnect the connectors, reinstall components etc.
- Ignition on.
- Start the engine.

Does the engine run on all cylinders?

Yes - FAULT FOUND

No - No Fault FoundFault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking ignition coil

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