Shorted ac switch
Thread Starter
6th Gear
Joined: Apr 2014
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Shorted ac switch
On 98 vette I was trying to get ac clutch to engage and when I jumped the pressure switch I lost fuel guage,oil sending unit and now my fans run continously. Any ideas on what happened and how to correct.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
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From: Columbia SC
What color wires did you jumper together. There are 3 there. Red/Black, Grey, and Black.
Last edited by dadaroo; Apr 20, 2014 at 09:21 AM.
Thread Starter
6th Gear
Joined: Apr 2014
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Jumped red and grey fans came on then the thread I read said to jump from battery to black to engage clutch been trying to find wiring diagrahms so far not found one seems all codes say open circuit on ground
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Here is the schematic. It would seem you put 12 volts or more into the low reference circuit. That would seem to be a bad thing for the PCM.
Please post the link to where you got this info.
PS: Was the pressure sensor disconnected when you did this?
Please post the link to where you got this info.
PS: Was the pressure sensor disconnected when you did this?
Last edited by dadaroo; Apr 20, 2014 at 09:55 AM.
Thread Starter
6th Gear
Joined: Apr 2014
Posts: 6
Likes: 0
Yes it was disconnected
