Checking wiring and component
- Ignition off.
Check the cable between carphone control module A13 (terminal #13) and power supply for the handset D7 (terminal #38) for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Try replacing the carphone handset if no fault is found in the wiring.
Remedy as necessary.
Other information:
- To access or replace the carphone module, see Telephone module/-control module (PHM), changing
- To access and replace the handset, see Replacing the handset
- To connect the breakout box, see Connecting the breakout box. Carphone module
- For information about signals and connectors, see Signal description. Phone module (PHM) .
Continue when the fault has been remedied.
- Continue
Refer to Verification