Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

COURTESY LAMPS STAY ON - DIAGNOSTIC PROCEDURE

TEST	ACTION
1	Turn the ignition off. Disconnect the Headlamp Switch harness connector. Are the Courtesy Lamps on? Yes --> Go To 2 No --> Repair the Courtesy Lamp Switch Sense Circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 .
2	Turn the ignition off. Disconnect the Central Timer Module harness connector. Are the Courtesy Lamps on? Yes --> Repair the Courtesy Lamp Output Circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 3
3	Turn the ignition off. Disconnect the Headlamp Switch harness connector. Disconnect the Central Timer Module harness connector. Measure the resistance between ground and the Courtesy Lamp Driver Circuit. Is the resistance below 100.0 ohms? Yes --> Repair the Courtesy Lamp Driver Circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 4
4	Turn the ignition off. Disconnect the Headlamp Switch harness connector and remove the Headlamp Switch. Turn the Headlamp Switch off. Turn the Courtesy Lamp Switch off. Measure resistance between the Interior Lamp Defeat Circuit and the remaining Headlamp Switch connector terminals. Measure resistance between the Courtesy Lamp Switch Sense Circuit and the remaining terminals. Is the resistance below 100.0 ohms for any of the measurements? Yes --> Replace the Headlamp Switch. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Central Timer Module. Perform BODY VERIFICATION TEST - VER 1 .