Checking the power supply
Measure the power supply to the carphone module between terminal #A6 and the battery positive terminal.
Measure the battery voltage.
If the difference between the carphone supply voltage and battery voltage is less than 2.5 V there is an internal fault in the carphone module. If the difference is greater than 2.5 V the fault is in the supply cable.
Remedy as necessary.
Other information:
- To access or replace the carphone module, see Phone module (PHM), replacing
- To access the passenger compartment fuse box, see Fusebox, passenger compartment, replacing
- 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