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General discussion

Changed PCM in 1997 Jeep Grand Cherokee guages don't work

Dec 14, 2007 8:42AM PST

I determined I need a new PCM for my 1997 Jeep Grand Cherokee Laredo, 6-cyl, 4 speed auto trans.

Bought a PCM (programmed for my vehicle and mileage) disconnected the battery and installed reconnected battery. Everything great except guages don't work, i.e., tach, speedometer, oil pressure, water pressure.

Help please.

Discussion is locked

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(NT) Take it back to the Chrysler/Jeep Dealer.
Dec 15, 2007 2:12AM PST
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Dealer
Dec 15, 2007 5:08AM PST

You should tell the dealer and they will probably figure out the problem.