B1611

B1611-AMBIENT LIGHT SENSOR 1 INPUT CIRCUIT HIGH

For a complete wiring diagram refer to the wiring information Electrical Diagrams.

- When Monitored:
With the ignition on.

- Set Condition:
If the Ambient Light Sensor input is out of range toward the high voltage threshold.





1. CHECK FOR ACTIVE DTC WITH THE SUNLOAD SENSOR HARNESS CONNECTOR DISCONNECTED
1. Turn the ignition off.
2. Disconnect the Sunload Sensor harness connector.
3. Turn the ignition on.
4. With the scan tool, erase HVAC DTCs.
5. Turn the ignition off, wait 10 seconds, and turn the ignition on.
6. With the scan tool, read HVAC DTCs.

Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- Replace the Sunload Sensor.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.

2. CHECK (L24) AUTO HEADLAMPS SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the A/C Heater Control C1 harness connector.
3. Measure the voltage of the (L24) Auto Headlamps Signal circuit between ground and the A/C Heater Control C1 harness connector.

Is there any voltage present?

Yes

- Repair the (L24) Auto Headlamps Signal circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Replace the A/C Heater Control.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.