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 .
- CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH) CIRCUIT
Operate the rear window defogger switch.
Is the inspection result normal?
YES
Inspection End.
NO
GO TO 2.
- CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH) CIRCUIT VOLTAGE
- Turn ignition switch ACC.
- Check voltage between multifunction switch harness connector M98 terminal 3 and ground.
(+) (-) Condition Voltage (V)
(Approx.)Multifunction switch Connector Terminal M98 3 Ground Ignition switch ACC Battery voltage OFF 0
Is the inspection result normal?
YES
Replace multifunction switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO 3.
- CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH) CIRCUIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect accessory relay-2 connector E22.
- Disconnect multifunction switch connector M98.
- Check continuity between multifunction switch connector M98 terminal 3 and accessory relay-2 connector E22 terminal 5.
Multifunction switch Accessory relay-2 Continuity Connector Terminal Connector Terminal M98 3 E22 5 Yes
Is the inspection result normal?
YES
GO TO 4.
NO
Repair and replace harness.
- CHECK MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER SWITCH) CIRCUIT FOR SHORT
- Turn ignition switch OFF.
- Disconnect accessory relay-2 connector E22.
- Disconnect multifunction switch connector M98.
- Check continuity between multifunction switch connector M98 terminal 3 and ground.
Multifunction switch Ground Continuity Connector Terminal M98 3 No
Is the inspection result normal?
YES
Check the following:
- Accessory relay-2.
- Battery power supply circuit.
NO
Repair or replace harness.