Mechanics

TURN SIGNAL PROBLEM

2004 GMC Envoy • 6 cylinder 2WD Automatic • 150,000 miles

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.
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Johnsonho
January 18, 2011.




Replace bulb 1st '
Check wiring harness and socket


BMRFIXIT
Jan 18, 2011.
I have replace bulb. How do I check the wiring harness and socket


Tiny
Johnsonho
Jan 18, 2011.
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


BMRFIXIT
Jan 19, 2011.
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.


Tiny
Johnsonho
Jan 19, 2011.
This may help


BMRFIXIT
Jan 19, 2011.
Thanks for the drawing. It turn out that the front socket bad. Need GMC or replacement part number for socket. Again thank you.


Tiny
Johnsonho
Jan 24, 2011.
2004 GMC ENVOY 4.2L 256cid L6 FI (S) DOHC : Electrical-Lamp & Socket : Turn Signal Lamp Socket

ACDELCO Part # LS259 #88862199 3-WAY FEMALE
SOCKET, FRT SI MKR LP 4 WHEEL DRIVE; OE 12083689, 3 WIRES
SOCKET, FRT SI MKR LP 2 WHEEL DRIVE; OE 12083689, 3 WIRE

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


BMRFIXIT
Jan 24, 2011.
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.
AD


Tiny
Johnsonho
Jan 28, 2011.

AD