Need Some help...CPS
10-11-2010, 08:18 AM
#1
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Need Some help...CPS
Replaced crank position sensor because jeep was cutting off when it got hot. Ever since I did that my instrument cluster shuts down intermittenly, and the computer dislay is jacked showing doors are open and other thing, and my passenger widows wont work; only every now and then.
Any suggestions?
thanks
Any suggestions?
thanks
10-11-2010, 08:46 AM
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that would be two different problems. The crankshaft position sensor plugs directly into the main harness if im not mistaken. I would say that something could have quite possibly shorted out in the harness while you were either removing or inserting the connector to the crankshaft sensor. the sensor itself would have nothing to do with the panel displays, as its function is strictly to read the crankshaft position to relay advance and retard of ignition timing to the computer. other than that I could only assume that maybe a component in your computer has gone. Do you have a haynes or chilton manual?
10-11-2010, 09:32 AM
#3
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Instrument cluster weirdness after CPS replaced?
If none of the weirdness was evident prior to CPS replacement then retrace your steps and confirm that no other electrical connections/harnesses were disturbed or damaged during diagnosis and repair. It sounds like your PCM module is in a state of data lock-up, requiring a power reset (and a quick "demystifying"). Disconnect the battery at the negative terminal - not the positive - demate the connectors at the control module - lightly fog each of them with WD40 and walk away for a short break - carefully reconnect them then restore the battery negative. Test to see if the "condition" cleared and then please advise on observations/results.
10-12-2010, 07:03 AM
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Can you tell me where the control module is located. I will try this on Wednesday and post the results. Thanks
If none of the weirdness was evident prior to CPS replacement then retrace your steps and confirm that no other electrical connections/harnesses were disturbed or damaged during diagnosis and repair. It sounds like your PCM module is in a state of data lock-up, requiring a power reset (and a quick "demystifying"). Disconnect the battery at the negative terminal - not the positive - demate the connectors at the control module - lightly fog each of them with WD40 and walk away for a short break - carefully reconnect them then restore the battery negative. Test to see if the "condition" cleared and then please advise on observations/results.
10-13-2010, 12:14 PM
#6
CF Veteran
Whereizzit?
Hi Huntintales,
It's mounted behind the air-box on the driver's side front corner of the engine compartment - at least that's where it is located on my '99 Chero. There should be 3 connectors there. Be firm but gentle as they require a good deal of extraction/insertion force.
Good Luck,
Cherryokee
