Checking Keypad Unit/Car phone Module

Checking keypad unit/car-phone module

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

Have all tests been carried out and no faults detected?

Yes - Replacing component

No - No Fault Found

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Replacing component
Try a new keypad unit/car-phone module.

Caution! A new keypad unit/car-phone module is delivered without software. The keypad unit/car-phone module must be programmed in order to operate after replacement.

Other information:
- To program and access/replace the keypad unit/car-phone module, see Radio cassette player, replacing Radio Cassette Player, Replacing.

Was a fault detected?

Yes - FAULT FOUND

No - No Fault Found

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