Exterior Lighting System (Circuit Diagnosis)
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 FRONT FOG LAMP FUSE
- Turn the ignition switch OFF.
- Check if the following fuse is blown.
Unit
Location
Fuse No.
Capacity
Front fog lamp
IPDM E/R
42
15 A
Is the fuse open?
YES
Replace the blow fuse after repairing the affected circuit.
NO
GO TO 2.
- CHECK FRONT FOG LAMP OUTPUT VOLTAGE
- Turn the ignition switch OFF.
- Disconnect the front fog lamp harness connector E305 or E306.
- Turn the ignition switch ON.
- Turn the front fog lamps ON.
- Check the voltage between the fog lamp harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Connector
Terminal
LH
E305
2
Ground
Battery voltage
RH
E306
Is battery voltage present?
YES
GO TO 4.
NO
GO TO 3.
- CHECK FRONT FOG LAMP OPEN CIRCUIT
- Turn the ignition switch OFF.
- Disconnect IPDM E/R harness connector E217.
- Check continuity between the IPDM E/R harness connector and the front fog lamp harness connector.
IPDM E/R
Front fog lamp
Continuity
Connector
Terminal
Connector
Terminal
LH
E217
79
E305
2
Yes
RH
78
E306
Does continuity exist?
YES
Replace IPDM E/R. Refer to Removal and Installation .
NO
Repair or replace the harnesses or connectors.
- CHECK FRONT FOG LAMP GROUND CIRCUIT
Check continuity between the front fog lamp harness connector and ground.
Connector
Terminal
--
Continuity
LH
E305
1
Ground
Yes
RH
E306
Does continuity exist?
YES
Inspect the fog lamp bulb.
NO
Repair or replace the harnesses or connectors.