Checking the Components And Wiring
HINT: The hands-free microphone is connected to the phone module (PHM) via a connector in the right-hand A-post.
HINT: The hands-free loudspeaker is connected to the phone module (PHM) via a connector under the driver's seat.
- Ignition off.
Check the hands-free speaker and phone module (PHM) connectors. Check for loose connections. See Contact Resistance And Oxidation .
Check the cable between the phone module (PHM) connector A4 (terminal #4) and hands-free loudspeaker connector B10. Check the cable between phone module (PHM) connector A5 (terminal #5) and hands-free loudspeaker connector B9. Check for an open-circuit. See Open-Circuit, Permanent Faults .
Check the cable between phone module (PHM) connector terminal A11 (terminal #11) and hands-free microphone connector C terminal B. Check for a short-circuit to supply voltage. See Short-Circuit To Supply Voltage. Permanent Faults .
Try a new hands-free loudspeaker.
Try a new hands-free microphone.
Remedy as necessary.
Other information:
- To access or replace the hands-free unit, see Handsfree Equipment, Replacing
- To access and replace the phone module (PHM), see Phone Module (PHM), Replacing
- For information about signals and connectors, see Signal Description. Phone Module (PHM)
- To connect the breakout box, see CONNECTING THE BREAKOUT BOX. CARPHONE MODULE .