Checking the ECU

Checking the ECU

Fault-tracing information
Before continuing with fault-tracing, the following must be checked:
- All tests for the relevant symptom must have been carried out
- No component, connector or wiring faults etc. should have been detected.

Have all tests been carried out and no faults detected?

Yes - Replacing the component

No - No Fault Found

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Replacing the component
Try a new carphone module.

Caution! A new carphone module is delivered without software. The carphone module must be programmed in order to operate after replacement.

Other information:
- To program and access or replace the carphone module, see Phone module (PHM), replacing Service and Repair.

Was a fault detected?

Yes - Fault Found

No - No Fault Found

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