Fault-Tracing Information

Fault-tracing

Checking components and wiring








- Ignition off
Check the fuse for the signal cable from the ignition lock. If the fuse has blown, check the cable. Check for a short-circuit to ground.
Disconnect the engine control module (ECM).
Check the signal cable from the ignition lock. Check for a short-circuit to supply. Check for an open-circuit.
Measure between:
- Engine control module (ECM) terminal #B17 and the central electronic module (CEM).
Remedy as necessary.

Other information
- Connecting the breakout box, B6304T4 Breakout Box Connection, Engine Control Module (ECM)
- Signal specification, B6304T4 Signal Specification, Engine Control Module (ECM)
- Location of components, B6304T4 Locations
- Component specifications, B6304T4 [1][2]Computers and Control Systems
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults





Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect the connectors, components, etc.
- Run the starter motor/start the engine.
- Read off the status from the ignition lock.
Check that the read off status from the ignition lock corresponds to the actual position of the ignition lock.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

Attempt New Test - Checking components and wiring

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