Rear Window Defogger: Testing: Relay
- Remove relay. On continuous relay, ground housing. On timed relay ground terminal "G". Connect jumper wire from terminal "B" (Yellow/Dark Blue wire) to terminal "Y" (Pink wire). Connect a 12-volt test lamp from terminal "L" (Black/Tan wire) of relay to ground.
- Apply 12 volts to terminal "B" (Yellow/Dark Blue wire), test lamp should not light. If lamp comes on, replace relay.
- Short terminal "B" (Yellow/Dark Blue wire) and terminal "P" (Ground wire) for a few seconds, lamp should light and stay on for 8 1/2 to 11 1/2 minutes on timed relays and until turned off on continuous relays. If lamp does not light, replace relay.
Courtesy of CHRYSLER GROUP, LLC