Signal Too Low. Intermittent Fault

Signal too low. Intermittent fault

Checking the wiring and component

Hint: The hands-free microphone is connected to the phone module (PHM) via a connector in the right-hand A-post.




- Ignition off.
Check the cable between phone module (PHM) connector terminal A1 (terminal #1) and hands-free microphone connector C terminal A. Check for a short-circuit to ground. See Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Try replacing the hands-free microphone if no fault is found in the wiring.
Remedy as necessary.

Other information:
- To access and replace the hands-free microphone, see Hands-free equipment, replacing Hands-Free Equipment, Replacing
- To access or replace the phone module (PHM), Service and Repair.
- To connect the breakout box, see Connecting the breakout box. Car phone module Connecting the Breakout Box
- For information about signals and connectors, see Signal description. Phone module (PHM) Signal Specification.













Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

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Yes - Attempt New Test

No - Exit fault-tracing

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Attempt New Test - Checking the wiring and component

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