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Happy 4th of July everyone. Well, 5th. I have been digging in to the wiring on the M35A3 trying to get the CTIS working again. The CTIS controller is dead. I am lost. I've referenced the service manual as much as possible. There are two connections plus a ground on the CTIS. I have...

I checked the grounding to the unit and as many placed and systems I could check. Grounds seem solid. I found that this truck was missing the flasher unit so I got that replaced and working. I checked the voltage at the CTIS head. No voltage there. So, something happened to cause the...

We've had our A3 for three years now and I finally got the light switch diagnosed and replaced, fixed the air problem to the winch and the brake light switch. I still can't get turn signals and find nothing wrong anywhere except maybe the turn signal lever. With that said, its been great...