Santos Posted December 14, 2023 Share Posted December 14, 2023 Hi i currently have no turn signals or hazards. I purchased a relay from Napa and also installed another Mack’s turn signal switch and no luck. Anywhere else I should look at? Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/73651-1997-ch600-no-turn-signal-or-hazards/ Share on other sites More sharing options...
0 JoeH Posted December 15, 2023 Share Posted December 15, 2023 On 12/14/2023 at 11:26 AM, Santos said: Hi i currently have no turn signals or hazards. I purchased a relay from Napa and also installed another Mack’s turn signal switch and no luck. Anywhere else I should look at? Thanks. You probably have all LED lights and the one incandescent bulb you have on the turn signals failed. Probably the dash indicator bulbs. There's a special turn signal flasher for LEDs that has a grounding wire coming out that you're supposed to attach to a good ground. LEDs don't draw enough power to trip the old style turn signal flashers, so they've made that special electronic one with the grounding wire to overcome this issue. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73651-1997-ch600-no-turn-signal-or-hazards/#findComment-543511 Share on other sites More sharing options...
0 880joe Posted December 16, 2023 Share Posted December 16, 2023 Not sure on a 97 but my 99 has fuse box on outside of firewall by steering shaft that seems like I had similar issues and was a bad relay or fuse connection Quote Link to comment https://www.bigmacktrucks.com/topic/73651-1997-ch600-no-turn-signal-or-hazards/#findComment-543526 Share on other sites More sharing options...
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Santos
Hi i currently have no turn signals or hazards. I purchased a relay from Napa and also installed another Mack’s turn signal switch and no luck. Anywhere else I should look at? Thanks.
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