Automatic Lighting Control Unit-Sensor Input Test (5-door)

Automatic Lighting Control Unit-Sensor Input Test

NOTE:

	If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
	Before testing, make sure the No. A18 (10 A) fuse in the under-hood fuse/relay box is OK.

1.	Turn the vehicle to the OFF (LOCK) mode.

2.	Disconnect the automatic lighting control unit-sensor 5P connector.

Inspect the connector and socket terminals to be sure they are all making good contact:

	If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
	If the terminals are OK, go to step 4.

Reconnect the connector, and do the following input tests:

	If any test indicates a problem, find and correct the cause, then recheck the system.
	If all the input tests prove OK, replace the automatic lighting control unit-sensor.

Cavity

Wire

Test condition

Test: Desired result

Possible cause if desired result
is not obtained

BRN

In all power modes

Measure the voltage to ground:
There should be less than 0.2 V.

	Poor ground (G503)
	An open or high resistance in the ground wire

RED

Under all conditions

Measure the voltage to ground:
There should be battery voltage.

	Blown No. A18 (10 A) fuse in the under-hood fuse/relay box
	An open or high resistance in the wire

YEL

Combination light switch OFF

Measure the voltage to ground:
There should be battery voltage.

An open or high resistance in the wire