Posts: 5,110
Threads: 249
Joined: Jul 2012
So. If you use a wire tracer, you may be able to find the module. Since the DDEC II isnt activating the jake then throtte position has to be involved in some way. look at the throttle pedal and the throttle on the engine for a limit switch
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home
)
Posts: 1,004
Threads: 137
Joined: Sep 2021
I haven't wandered too much on the inside of the coach. I do know which wire comes from the back so I can separate that one and tone the other 3 wires at the relay.
--Simon
1993 8v92TA #312
Posts: 248
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Joined: Jun 2023
It’s hard for me to believe that they are not using some signal from the DDEC for the zero throttle. It may not be the engine brake output maybe there is another output. I will look through my DDEC II docs tonight and see if I can find anything that they might be using for the actuation of the jakes. The jakes module I know of still gets it signal from the DDEC ECM.
Jeff LoGiudice
Temple Terrace, Fl
1984 Bluebird Wanderlodge PT40
1998 Newell 2000 #490
1986 MCI/TMC 102A3 (sold)
Posts: 1,004
Threads: 137
Joined: Sep 2021
It’s possible the relay is junk too. I will test it later to rule it out. So far one of four solenoids was dead and I replaced it. All four click when I apply power with a test lead.
--Simon
1993 8v92TA #312
