Checking cables and components
HINT: The phone module is connected to the GPS antenna via a connector on the right A-pillar.
- Ignition off.
Check the antenna cable between the phone module (PHM) connector G (grey) and connector E (connector 1) on the right A-pillar for a short circuit to ground as described in Short-circuit to ground, intermittent faults . Test connector G between:
If no fault is found on the antenna cable, test again after replacing antenna.
- A (antenna signal) and B (mudguard ground)
- A (antenna signal) and body ground
Check GPS-antenna cable and phone module (PHM) connectors for a loose contact, as described in Loose connections (terminals) .
Do the necessary corrective action.
Additional information:
- In terms of DC voltage, the GPS antenna has a fixed internal resistance of approximately 60Ω.
- Using an ohmmeter, the resistance between the signal wire and mudguard or body ground antenna cable, between the phone module and the right A-pillar connector should be infinite.
- To access/replace the phone module (PHM), see Telephone module/-control module (PHM), changing .
- To access/replace the phone antenna, see Antenna carphone, replacing .
- For information on signals and connectors, see Signal description. Phone module (PHM) .
Courtesy of VOLVO CARS OF NORTH AMERICA.
- Continue
Refer to Information