Dalton1 Posted May 8 Share Posted May 8 I'm working on a 09 GU713 that has no left rear turn signal. Everything else works fine, so far I've un hooked the wiring where the factory wiring goes to the dump body, has about 1v coming out of the harness at the rear of the truck. Truck had no turn signals at first but replaced the turn signal switch and updated the flasher per the service bulletin from Mack, that fixed everything but the left rear blinker. Haven't been able to find any wires damaged. Is there any common spots to look for on these? Does anyone have a wiring diagram for the lighting circuit? Thanks! Quote Link to comment Share on other sites More sharing options...
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