Fluctuating RMP with turn signal

[JBS227]

Hello to all. I am a long time lurker. Solved many problems with this forum. But this one is strange.

I have a 99 landcruiser.

If I use the turn signal the following happens at any speed:

-The RPM fluctuates (drops) 800 RPM with each blink and returns to normal after the blink
-The cruise will disengage with the first blink

If I am parked and use the turn signal with the brake pedal up:
-The transmission bypass switch will disengage the shift lever lock with every blink

I have tried to find what these systems have in common. The only thing I can find is a grounding block behind the driver's fuse panel. Which appears to be good. Its free of corrosion and grounds and all points.

Any ideas?

Thanks for reading and no idea is a bad idea.

Josh

 

[TioChachie]

Weird, no idea, good luck, might try the 100 series forum for your '99.

Hello to all. I am a long time lurker. Solved many problems with this forum. But this one is strange.

I have a 99 landcruiser.

If I use the turn signal the following happens at any speed:

-The RPM fluctuates (drops) 800 RPM with each blink and returns to normal after the blink
-The cruise will disengage with the first blink

If I am parked and use the turn signal with the brake pedal up:
-The transmission bypass switch will disengage the shift lever lock with every blink

I have tried to find what these systems have in common. The only thing I can find is a grounding block behind the driver's fuse panel. Which appears to be good. Its free of corrosion and grounds and all points.

Any ideas?

Thanks for reading and no idea is a bad idea.

Josh