M929A2 Turn Signal Question

[Postman515]

I have a BMY 929A2 dump truck. The directional signal switch light comes on for left/right and hazard but doesn't flash just kind of dims . Is the turn signal flasher bad.

 

[Suprman]

Did you walk around the truck and see if the blinkers are flashing as they are supposed to? It could be several things I would start with the simple ones like checking bulbs and go from there.

 

[Postman515]

There are no lights flashing or staying on outside of the truck. The flasher unit under the dash isn't doing anything either.

 

[Suprman]

Is the light switch on?

 

[BKubu]

Like the others have said...it could be a number of things. Check the light switch...check the bulbs...check to make sure the turn signal switch on the steering column is grounded properly...make sure the lights themselves are grounded properly. If all of that checks out, it could be the flasher unit.

 

[Postman515]

The light switch is on. The light on the turn signal lever comes on and stays on it just doesn't flash. All other light functions work just no turn or hazard.

 

[Suprman]

Sounds like either a bad control module, bad grounds or bad bulbs.

 

[Postman515]

Tested with voltmeter and have 24v going into flasher module and 24v back out but no flashing so im guessing flasher module is bad.

 

[Suprman]

Did you check to see if it has a good ground. Things corrode on these trucks especially grounds.

 

[Postman515]

Thanks for all the input. I ended up pulling the flasher unit out my m817 and trying it in my 929 and all the lights worked fine. So I now know the culprit is a bad flasher unit.

 

[wiggall]

I have went through 3 flasher units in 3 years in my 1968 Kaised Jeep M35A2W/W! Is the flasher unit a problem?