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 SUNLOAD SENSOR POWER SUPPLY
- Disconnect sunload sensor connector.
- Turn ignition switch ON.
- Check voltage between sunload sensor harness connector M118 terminal 2 and ground.
+
-
Voltage
(Approx.)
Sunload sensor
Connector
Terminal
M118
2
Ground
5 V
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 4.
- CHECK CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.
- Turn ignition switch OFF.
- Disconnect A/C auto amp. connector.
- Check continuity between sunload sensor harness connector M118 terminal 3 and A/C auto amp. harness connector M50 terminal 26.
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M118
3
M50
26
Yes
Is the inspection result normal?
YES
GO TO 3.
NO
Repair harness or connector.
- CHECK SUNLOAD SENSOR
- Reconnect sunload sensor connector and A/C auto amp. connector.
- Check sunload sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
Replace A/C auto amp. Refer to Removal and Installation .
NO
Replace sunload sensor. Refer to Removal and Installation .
- CHECK CONTINUITY BETWEEN SUNLOAD SENSOR AND A/C AUTO AMP.
- Turn ignition switch OFF.
- Disconnect A/C auto amp. connector.
- Check continuity between sunload sensor harness connector M118 terminal 2 and A/C auto amp. harness connector M50 terminal 9.
Sunload sensor
A/C auto amp.
Continuity
Connector
Terminal
Connector
Terminal
M118
2
M50
9
Yes
- Check continuity between sunload sensor harness connector M118 terminal 1, 2 and ground.
Sunload sensor
--
Continuity
Connector
Terminal
M118
2
Ground
No
Is the inspection result normal?
YES
Replace A/C auto amp. Refer to Removal and Installation .
NO
Repair harness or connector.