Remove cruise control switch
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RJ237 (08-20-2012)
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Thank you, I was at his site but didn't see it. This is all because I lost cruise control while driving. This time I have codes: P1236, 1237, 1238, all vacuum system. I need to do a little more checking, but so far I have determined that the circuits from the ECM to the valves are good, but there is no power to valve 3.
When I checked EM 13-3 SP from the cruise control switch I got line voltage with ignition on but 0v when I pushed cc switch on.
I have a friend with a 97 XK8 and he is coming over in a couple days so I can compare readings. I drove again and still no cruise control but also no codes. The rest of the CC circuitry is good, just no vacuum system.
When I checked EM 13-3 SP from the cruise control switch I got line voltage with ignition on but 0v when I pushed cc switch on.
I have a friend with a 97 XK8 and he is coming over in a couple days so I can compare readings. I drove again and still no cruise control but also no codes. The rest of the CC circuitry is good, just no vacuum system.
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