2.CHECK MICROPHONE SIGNAL CIRCUITS FOR SHORT TO POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect AV control unit harness connector and TCU harness connector.
- Turn ignition switch ON.
- Check the voltage between AV control unit harness connector and ground.
Without BOSE
(+) | (-) | Voltage |
AV control unit |
Connector | Terminal |
M102 | 40 | Ground | 0 V |
With BOSE
(+) | (-) | Voltage |
AV control unit |
Connector | Terminal |
M124 | 40 | Ground | 0 V |
Is the inspection result normal?
Repair or replace harness or connectors.