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View Full Version : Lost Engine Retarder Jake Brake

Archie T. Hogan
05-12-2013, 04:17 PM
The retarder light went out and all brake assist disappeared. Does my year have a relay box? Where is the first place I should start troubleshooting?
Vantare
05-12-2013, 08:29 PM
Archie, I would check the fuses/circuit breakers for starters.
Viva Las Vegas JDR
05-13-2013, 02:06 AM
do you have electrical schematics?