POWER SUPPLY AND GROUND CIRCUIT (COUPE)
MICROPHONE : Diagnosis Procedure
1.CHECK POWER SUPPLY CIRCUIT (MICROPHONE SIDE)
Check voltage between microphone harness connector and ground.
Is proper voltage present?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK POWER SUPPLY CIRCUIT (CONTINUITY)
- Turn ignition switch OFF.
- Disconnect Bluetooth control unit and microphone connectors.
- Check continuity between microphone harness connector R7 (A) terminal 4 and Bluetooth control unit harness connector B55
(B) terminal 29.
- Check continuity between microphone harness connector R7 (A) terminal 4 and ground.
Are continuity results as specified?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK POWER SUPPLY CIRCUIT (BLUETOOTH CONTROL UNIT SIDE)
- Connect Bluetooth control unit connector.
- Turn ignition switch ON.
- Check voltage between Bluetooth control unit harness connector and ground.
Is proper voltage present?
YES >> Inspection End.
NO >> Replace Bluetooth control unit. Refer to See: Service and Repair\Removal And Installation - Coupe.
4.CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect Bluetooth control unit and microphone connectors.
- Check continuity between microphone harness connector R7 terminal 2 and Bluetooth control unit harness connector B126 terminal 8.
Is continuity present?
YES >> Inspection End.
NO >> Repair harness or connector.
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