Turn signal comes on, does not blink.

[jgreen52888]

Hello,

The truck is a M1120A4 LHS. The turn signal/hazards light have and come on, they do not blink. I have replaced the turn signal switch, the hazard light switch, the ground wire, and the high beam switch. There no other fuses tripped that I can tell and there is correct voltage going through the harness. What would keep it from blinking?

 

[Mullaney]

Hello,

The truck is a M1120A4 LHS. The turn signal/hazards light have and come on, they do not blink. I have replaced the turn signal switch, the hazard light switch, the ground wire, and the high beam switch. There no other fuses tripped that I can tell and there is correct voltage going through the harness. What would keep it from blinking?

.
There should be a flasher - just like a normal truck.

TM 9-2320-279-24P
Page 88-1
PDF Page 282 and 283

GROUP 0608 MISCELLANEOUS ITEMS

Hopefully?

FIG.88 TURN SIGNAL SWITCH AND
FLASHER

 

[Towbarman]

II have the same issue, but we replaced the turn signal flasher relay and nothing happens. Is there another circuit breaker along the wiring harness that Iam missing?

 

[Towbarman]

I posted an early post. The headlights, 4ways, marker lights all work except the turn signals. What could it be?

 

[FullSpecial]

Replaced with LED lights? Take the indicator bulb out of the turn signal switch and try it again.

 

[MarkM]

On my M998 when I replaced my directional bulbs with Leds my blinkers no longer worked. The flasher needs more resistance than the Leds were giving. I put the incandescent bulbs in just the front and the blinkers worked fine. This may be your issue if you replaced the bulbs and then had a problem.

Mark