Diagnosis Procedure
WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CONTINUITY BETWEEN TEL ADAPTER UNIT AND MICROPHONE CIRCUIT
- Turn ignition switch OFF.
- Disconnect TEL adapter unit connector and microphone connector.
- Check continuity between TEL adapter unit harness connector and microphone harness connector.CONTINUITY SPECIFICATION
TEL adapter unit Microphone Continuity Connector Terminal Connector Terminal B237 7 R5 1 Existed 8 2 29 4 - Check continuity between TEL adapter unit harness connector and ground.
CONTINUITY SPECIFICATIONTEL adapter unit Ground Continuity Connector Terminal B237 7 Not existed 29 Is inspection result OK?
YES: Go to 2.
NO: Repair harness or connector.
- CHECK MICROPHONE POWER SUPPLY
- Connect TEL adapter unit connector.
- Turn ignition switch ON.
- Check voltage between TEL adapter unit harness connector and ground.
VOLTAGE SPECIFICATIONTEL adapter unit Ground Voltage (Approx.) Connector Terminal B237 29 5.0 V Is inspection result OK?
YES: Go to 3.
NO: Replace TEL adapter unit. Refer to "REMOVAL AND INSTALLATION ".
- CHECK MICROPHONE SIGNAL
- Turn ignition switch OFF.
- Connect microphone connector.
- Turn ignition switch ON.
- Check signal between TEL adapter unit harness connector.
TEL ADAPTER UNIT CONDITION REFERENCE
| TEL adapter unit | TEL adapter unit | Condition | Reference value | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
| B237 | 7 | B237 | 8 | Give a voice. | |
Is inspection result OK?
YES: INSPECTION END
NO: Replace microphone. Refer to "REMOVAL AND INSTALLATION ".