Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CONNECTOR INSPECTION
- Disconnect BCM and NATS antenna amp.
- Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair or replace as necessary.
- CHECK NATS ANTENNA AMP. CIRCUIT
- Disconnect BCM connector and NATS antenna amp. connector.
- Check continuity between BCM harness connector and NATS antenna amp. harness connector.
BCM NATS antenna amp. Continuity Connector Terminal Connector Terminal M80 126 M21 3 Yes 127 1 - Check continuity between BCM harness connector and ground.
BCM Ground Continuity Connector Terminal M80 126 No 127
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Repair or replace harness.
- CHECK NATS ANTENNA AMP INPUT SIGNAL
- Turn ignition switch ON.
- Check signal between BCM harness connector and ground using oscilloscope.
(+) (-) Condition Signal
(Reference value)BCM Connector Terminal M80 126, 127 Ground When Intelligent Key is in the antenna detection area When Intelligent Key is not in the antenna detection area
Is the inspection result normal?
YES
Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO
Replace NATS antenna amp. Refer to REMOVAL AND INSTALLATION .