Right Rear Light: Blinker and Hazard not working

[swiss]

Been working on troubleshooting a rear light blinker that does not work with Turn signal or Hazards turned on.

Eliminated
1.) Rear light and bulbs are operational
2.) I believe I eliminated grounding issues


From research on the site it seems I could have the following potential Issues
1.) Short somewhere from front power to rear light
2.) Stalk Controller

I could see the Stalk Control being a problem if the blinker was not working correctly but does the hazard circuit also go through the stalk control? I stared at the electrical diagram for a while and not getting it.

Short of replacing the stalk is there some other troubleshooting I can do.

Thanks in advance to those of you that like electrical and can help

 

[Suprman]

I believe the hazards go thru the stalk too. It’s usually a bad light switch or the stalk. One of the big parts warehouses has new stalks for around 200 bucks.

 

[B-Dog]

From the A0 schematics, from the column switch, the signals (for the rears) go through diodes and then touch the coils for trailer (?) bulbs. If the fronts work, you can ignore everything upstream of the column switch.

To check the column switch, unplug the switch, activate either right or left signals and check continuity between wires 1594 and 461B (Left) & 460B (right). If continuity is not found, likely a bad switch.
With the switch plugged in, you could check for flashing power (with the turn signal activated) at D1B pin 4 (left) or D2A pin 2 (right). Remove the diode(s) and check these pins (from page 17 of the schematics):


Also, this will be of some help or at least will show how the front, rear and trailer are all isolated from each other:

faulty flasher?!

Sooo i have followed the TM flow chart all the way to the end and i still cant get my turn signals to flash.... they illuminate but dont flash... i have a new MME flasher installed but still no dice... anybody ever have a fulty flasher out of the box?! current issue turn signal or hazards stay...

www.steelsoldiers.com

 

[swiss]

From the A0 schematics, from the column switch, the signals (for the rears) go through diodes and then touch the coils for trailer (?) bulbs. If the fronts work, you can ignore everything upstream of the column switch.

To check the column switch, unplug the switch, activate either right or left signals and check continuity between wires 1594 and 461B (Left) & 460B (right). If continuity is not found, likely a bad switch.
With the switch plugged in, you could check for flashing power (with the turn signal activated) at D1B pin 4 (left) or D2A pin 2 (right). Remove the diode(s) and check these pins (from page 17 of the schematics):

Also, this will be of some help or at least will show how the front, rear and trailer are all isolated from each other:

faulty flasher?!

Sooo i have followed the TM flow chart all the way to the end and i still cant get my turn signals to flash.... they illuminate but dont flash... i have a new MME flasher installed but still no dice... anybody ever have a fulty flasher out of the box?! current issue turn signal or hazards stay...

www.steelsoldiers.com

B-Dog that is beautiful!!! I will do some testing and hopefully get over my fear of electronics

Thank You

 

[gslader]

I believe the hazards go thru the stalk too. It’s usually a bad light switch or the stalk. One of the big parts warehouses has new stalks for around 200 bucks.

@Suprman - Do you know which parts warehouse has the stalks? I've only been able to find for almost double what you referenced.