Question about 1999 Jeep Grand Cherokee

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I have a 1999 grand cherokee. The check engine light came on with a P1768 code. If I keep the trans in the "drive" position and start off, it feels like the transmission is in 3rd gear. No shifting occurs and will not shift to overdrive. I can manually change gears from 1st to 3rd normally, but still no overdrive. Is the problem with the shift solenoids or something else.

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Hi, Your like your jeep is in limp in mode, this is to keep you from burning up transmission and to get you some were off the road, the p1768 code means A/T Transmission Relay Output Always Off. This should be checked out by your local shop or dealer. but you should make sure that the fluid level is correct, if to low there is not enough fluid pressure for the solenoid's to engage the relays. Hope this can help you out. If i can help you anymore fell free to re post.
Thanks dodge tec

Posted on Jan 01, 2011

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`1999 Grand cherokee Limited. the check gauge constantly on

Posted on Mar 29, 2011

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It may be that the camshaft target wheel is stock. The best way to fix it would be to bring it to the spec.garage. You need to take of the gearbox, its hard to do without the lift.

Posted on Jan 01, 2011

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I am trying to find out where the transmission relay circuit is on my 1999 jeep grand cherokee limited. also what does code P1768 stand for and how do I solve this problem?


About Jeep Grand Cherokee 1999-2004, also called WJ, you must review this information, is in spanish language, but can hel yo:
- Jeep-WJ-2002-Cherokee-Service-Manual-PDF-08W-Diagrama-de-Cableado
* Electrical Distribution Center in 8W 10-2 Page 24 / Transmission Relay
* Trasmission Relay Descriiption in 8W 10-8 Page 30 / Diesel & Gas
* Control Transmission System in 8W 31 Page 167 and next.

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Here you can find the ODB Codes

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