| Grounds [message #295326] |
Tue, 09 February 2016 22:51  |
Hal StClair
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma:
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Senior Member |
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I've been struggling with a non operational cruise control ever since the diesel swap. It's about driven me nuts as everything seemed to be wired correctly but still no joy. I did manage to get it to engage once but I couldn't repeat the feat and have been àt a loss for the last month. After going over everything for the twentieth time I found a ground with about 3 ohms of resistance. Not enough to kill the function of the DRAC (digital ratio adaptor) as the trans shifted great or to set a trouble code but apparently enough to disrupt the cruise signal. Testing the ground with a voltmeter or test light checked out good but the PCM is only working on a five volt signal there and 3 ohms killed it. It's really ironic that a ground issue was the problem as my advice is normally to be sure and first check your GROUNDS. Too bad I wasn't a little more diligent and taken my own advice, it would have saved me countless hours of frustration.
Happy, happy now though.☺ Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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