Turn signals not working...put on right signal and left goes off
This is sporatic, but very annoying. Sometimes when turning on the right signal, the left is activated. Turning on the left, sometimes does nothing. Other times, it works without problems. Should I replace the turn signal unit? If so, is this something that could be done at a less than decent home garage?
Re: turn signals not working...put on right signal and...
Turn signal switch in the steering column. There are no relays/flashers on this vehicle. It is all controlled by a computer. The switch is most likely worn and not sending the correct voltage signal to indicate left or right.
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Turn Signal Lamps
The FRT/TRN/HAZ/CRTSY/MIRR and REAR/TRN/HAZ fuses in the underhood fuse block supplies battery positive voltage to the body control module (BCM). When the turn signal switch is placed in either the left or right position, a signal is sent to the BCM to illuminate the desired turn signal lamps. The BCM has an internal flasher that sends an ON-OFF voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, a separate ground signal is sent to the BCM to activate and flash all turn signal lamps including both IPC turn indicators. The front and rear turn signals are grounded at G105, G350 and G340. The sound for the turn signal indicators is produced by the IPC.
DTC B0525 Left Turn Signal Circuit
• DTC B0527 Right Turn Signal Circuit Low
• DTC B0528 Right Turn Signal Circuit High
• DTC B0529 Right Turn Signal Circuit Open
DTC B0530 Right Turn Signal Circuit
• DTC B0532 Left Turn Signal Circuit Low
• DTC B0533 Left Turn Signal Circuit High
• DTC B0534 Left Turn Signal Circuit Open
Could be a switch problem , short to ground on the signal circuit to the BCM , BCM seeing a input that shouldn't be there etc....
I would have it checked for DTC'S diagnostic trouble codes .
When the turn signals quit working pull up , down , front to back an back to front on the turn signal switch handle . Do they work when doing this ? Pontiac had bad switch . The power for the turn signals goes through the flasher / hazard module . Could be the switch or the module.
The HAZARD LPS fuse in the left hand instrument panel (LH IP) junction block supplies battery positive voltage to the flasher module, which is part of the hazard switch assembly. The TURN LPS fuse in the LH IP junction block supplies ignition positive voltage to the flasher module. The turn signal lamps may only be activated with the ignition switch in the ON position. When the turn signal switch is placed in either the left or right position, current flow is from the flasher module's output to the turn signal switch assembly. The flasher module then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, all the turn signal lamps will flash including both IPC turn signal indicators.
Sometimes the housing the bulb is in has gone bad try cleaning out the prongs where the bulb goes in it that does not work replace the fixture the bulb goes in had the some thing happen to my trailblazer hope this helps
heyii lady i am not so sure in this case but if it is not a short then may be your induction coil is producing more crrent than required..
so get your coil checked..
or this time..if u have not been then put genuine compant lamps..
i hope this will help you out..
belated Merry X-mas and Happy New Year :)