2014 Jeep Wrangler JK Factory Service Manual 28 - DTC-Based Diagnostics

B1782-HEADLAMP LEVELING SWITCH STUCK

For a complete wiring diagram, refer to the Wiring Information.

When Monitored:
With the ignition on.
Set Condition:
The Cluster detects the Headlamp Leveling Switch is active for greater than 20 seconds.

Possible Causes
LOWER SWITCH BANK

CHECK FOR AN ACTIVE DTC

1.	Turn the ignition on.

2.	With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

Replace the Lower Switch Bank in accordance with the Service Information.
Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).

No

Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.