Need help, My 2004 colorado front and rear parking lamps are not working. Brake and turn signal lights work. Fuse 29, 39 and 40 are ok. Swapped Park Lamp Relay 53. Pulled parking lamp relay 53 and checked power to relay coil is ok. If I jumper power from relay socket 53 to fuse socket 29 or 39 the corresponding rear parking lamp works. Does the body control module have anything to do with the path of power from relay 53 to the PK LP fuse sockets ? if so where is is located ?
Tried contact cleaner on sockets and replaced relays using di electric grease. Pulled connector c6 and c1 and did the same. Help !!!!!!