Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the battery cable from the negative terminal.
- Check the terminals and connectors of the pre-crash seat belt control unit (driver side) for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES
GO TO 2.
NO
Repair the terminal and connector.
- CHECK HARNESS FOR OPEN CIRCUIT
- Disconnect the connector of pre-crash seat belt control unit (driver side).
- Check the resistance between the pre-crash seat belt control unit (driver side) harness connector terminals.
Pre-crash seat belt control unit (driver side) harness connector
Resistance (Ohm)
Connector No.
Terminal No.
B58
14
4
Approx. 54 - 66
Is the measurement value within the specification?
YES
GO TO 3.
NO
Repair the pre-crash seat belt control unit (driver side) branch line.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the pre-crash seat belt control unit (driver side). Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace the front seat belt retractor (LH side). Refer to Front Seat Belt .
YES
Error was detected in the pre-crash seat belt control unit (driver side) branch line.
NO
Repair the power supply and the ground circuit.