1990 Volvo 760 Turbo Turn Signal Problem

[Randwill]

Fuses and bulbs replaced; but right turn signal only functions when parking lights are turned on. Will not function when regular lights or high beams are on. Can anyone advise? Thanks in advance.

 

[James Sweet]

Randwill wrote:

Fuses and bulbs replaced; but right turn signal only functions when parking lights are turned on. Will not function when regular lights or high beams are on. Can anyone advise? Thanks in advance.

Check the ground wires at the front corner light and the tail light. They attach to the car body and can corrode or break off.

 

[John Robertson]

Maybe while your about it you can explain why B M W drivers never bother to use their blinkers ?This is a bit tongue in cheek ,but its also true of many of the poor unfortunate who ?drive? these cars .

"James Sweet" wrote:

Randwill wrote:
Fuses and bulbs replaced; but right turn signal only functions when
parking lights are turned on. Will not function when regular lights or
high beams are on. Can anyone advise? Thanks in advance.

Check the ground wires at the front corner light and the tail light. They attach to the car body and can corrode or break off.

 

[Michael Pardee]

Fuses and bulbs replaced; but right turn signal only functions when parking lights are turned on. Will not function when regular lights or high beams are on. Can anyone advise? Thanks in advance.

That set of symptoms is a new twist (usually turning the parking lights on will kill the turn signal) but the suspicion still turns to the grounding for the right front lights. I'm thinking the common ground for all those is not making contact to the chassis, and the turn signal current is going backward through the headlights when those are not turned on. If so, the right headlight will be very dim and the right turn signal (front and rear) should be on solid when the headlights are on. Otherwise, I dunno, but grounding is still a prime suspect.

Mike

 

[Crazy Dog]

John Robertson wrote:

Maybe while your about it you can explain why B M W drivers never bother to use their blinkers ?This is a bit tongue in cheek ,but its also true of many of the poor unfortunate who ?drive? these cars .

Why would they use blinkers? They know where they're going.

 

[Randwill]

That set of symptoms is a new twist (usually turning the parking lights on will kill the turn signal) but the suspicion still turns to the grounding for the right front lights. I'm thinking the common ground for all those is not making contact to the chassis, and the turn signal current is going backward through the headlights when those are not turned on. If so, the right headlight will be very dim and the right turn signal (front and rear) should be on solid when the headlights are on. Otherwise, I dunno, but grounding is still a prime suspect.

Mike

Thanks. We looked and found the loose wire. Problem solved.

 

[Michael Pardee]

Thanks. We looked and found the loose wire. Problem solved.

Thanks for the feedback. It helps us advise the next guy.

Mike