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.

PARK LAMPS WILL NOT TURN ON - DIAGNOSTIC PROCEDURE

TEST	ACTION
1	With the DRBIII(R), actuate the Park Lamp Relay. Listen to or touch the Park Lamp Relay. Did the relay Click during actuation? Yes --> Go To 2 No --> Go To 4
2	Turn the Headlamp Switch to the Park position. Measure the voltage of the Park Lamp Switch Sense circuit. Is the voltage approximately 0.5 volts? Yes --> Go To 3 No --> Replace the Headlamp Switch. Perform BODY VERIFICATION TEST - VER 1 .
3	Remove the Park Lamp Relay. Measure the voltage of the Fused B+ Circuit in the Park Lamp Relay connector. Is the voltage above 10.0 volts? Yes --> Replace the Park Lamp Relay. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Junction Block. Perform BODY VERIFICATION TEST - VER 1 .
4	Remove the Park Lamp Relay. Measure the voltage of the Fused B+ Circuit in the Park Lamp Relay control side. Is the voltage above 10.0 volts? Yes --> Go To 5 No --> Go To 6
5	Turn the ignition off. Disconnect the Headlamp Switch harness connector. Connect a jumper wire between ground and the Park Lamp Switch Sense Circuit of the Headlamp Switch harness connector. Do the Park Lamps turn on? Yes --> Repair the Park Lamp Switch Sense Circuit for an open. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 6
6	Check Junction Block Fuse #4 Is Fuse #4 open? Yes --> Go To 7 No --> Repair the open Fused B+ Circuit from the junction block. Perform BODY VERIFICATION TEST - VER 1 .
7	Remove the Park Lamp Relay from the junction block. Measure the resistance of the Park Lamp Relay Output Circuit to ground. Is the resistance below 5.0 ohms? Yes --> Replace the Fuse and recheck the system. Perform BODY VERIFICATION TEST - VER 1 . No --> Replace the Central Timer Module. Perform BODY VERIFICATION TEST - VER 1 .