I have a 2004 GMC Envoy that the right turn signal blanks fast. I have verified the bulbs and fuses. The bulb do not turn on at all and I'm guessing that why it blanking fast. I like no power is coming to the shocket. The left turn signal work correctly.
Replace bulb 1st '
Check wiring harness and socket
January, 18, 2011 AT 9:26 PM
I have replace bulb. How do I check the wiring harness and socket
January, 19, 2011 AT 12:22 AM
1st need to verify fuse #43 below left rear back seat has battery power with signal on if not check TAN wire back at the flasher module if yes check DK BLU wire at the socket NO power trac wire harness and repair a short
January, 19, 2011 AT 6:53 PM
Fuse #43 is good. So I check for power on the DK BLU wire at the socket and there is no power. I have no diagram to trac the wire harness. Any suggestion.
January, 19, 2011 AT 11:35 PM
This may help
January, 24, 2011 AT 5:47 PM
Thanks for the drawing. It turn out that the front socket bad. Need GMC or replacement part number for socket. Again thank you.
January, 24, 2011 AT 11:21 PM
2004 GMC ENVOY 4.2L 256cid L6 FI (S) DOHC : Electrical-Lamp & Socket : Turn Signal Lamp Socket
ACDELCO Part # LS260 #88862200 3-WAY
SOCKET, FRT T/SIG LP 2 WHEEL DRIVE; OE 12083680, PARK AND TURN SIGNAL LIGHT
SOCKET, FRT T/SIG LP 4 WHEEL DRIVE; OE 12083680, PARK AND TURN SIGNAL LIGHT
January, 28, 2011 AT 9:47 PM
I replaced the socket and still have the same problem. I checked across the contacts the blue wire go to on the bad one and had an open. When I got the new one I checked across the same contacts and had a short. When I installed the new the blub it was still blinking fast so I remove the bulb and checked across the contacts and now I have an open. What is going on.