01 jeep Grand Cherokee transmission problem

both those codes are for your transmission governor pressure sensor .and your pressure sensor .to fit them drop the pan in your gearbox .remove your filter chance to change that will it is off. now you can see both your parts.pull off the plug from your governor pressure sensor and replace.now pull off the pressure sensor and replace it.i do not know your level of skill to understand this.you may need a garage to do this.

this is transmission related error. there is a governer pressure selenoid in selenoid pack of transmission. a sensor measures the voltage ouput of that. so this error means that its voltage readings were off spec. so you need to check the selenoid or sensors. (inside transmission)

but before investing money on, if your car was parked for long time, try to drive for 3 or 4 warm up period. which means drive let it cool down and drive again. then reset it by disconencting negative battery cable (remember to save code of radio if any)

P1757 - Governor Pressure Above 3 PSI When Request Is 0 PSI

P1762 - Governor Pressure Sensor Offset Improper Voltage

Both codes are refered at the governor pressure sensor; I am 99% certain that is bad. Just replace it. Check the voltage on the Light Green/White wire at pin 29 in the white PCM connector with key ON, engine OFF (KOEO). It should be about 0.5-0.7 volts.

If higher than 0.8 volts, check the Transmission Temperature sensor reading on a scan tool. If the Transmission Temperature sensor reads normal, the sensor ground is OK. If the sensor ground is OK, then replace the Governor Pressure sensor.

Hope this helps.

Trouble code P1762 means: Governor pressure sensor offset improper voltage. Gov. Pressure Sensor.It is located in the valve body of the transmission and requires dropping the transmission pan to replace. Sounds much more difficult than it is. Since you have to change your fluid it's a good idea to change the trans. filter .

P1762 1T CCM 1996-2003 Cherokee, Grand Cherokee A/T Governor Pressure Sensor Offset Volts Too High/Low Conditions: Key on or engine running. Gear selector in Park or Neutral. PCM detected an out-of-range Governor Pressure Sensor signal for 1.3 seconds. The fault must occur 3 times on one trip to set a code. Possible Causes: Governor pressure Sensor VREF (5v) circuit is open Governor pressure Sensor ground circuit is open P/N switch is damaged or has failed (not operating properly) Transmission fluid has excessive debris or it is contaminated PCM has failed

P1762 - Governor Press Sensor Offset Volts too LOW or too High
Circuit is monitored continuously while ignition is on and engine is running. DTC sets if the governor pressure is out of range in Park or Neutral for 1.3 seconds. The test must fail 3 times to set DTC.
The following items may be the area of concern:

• Solenoid pack connector 5-volt supply circuit open or shorted to ground.
• Defective PCM.
• Wiring harness and/or connectors defective.
• Governor pressure sensor wiring harness and/or connectors defective.
• Governor pressure sensor ground circuit open.
• Transmission fluid burnt or oil pan contains excessive debris.

Had the same code on my 2002 Jeep Grand Cherokee. Started having shifting problems as well. Code is for governor pressure sensor on trans. Cost me about $800 for dealer to fix. No problems after part changed out.

I had a shifting problem. The car would start in the wrong gear and shift at wrong times. I repaced the governor postion sensor and tranny fluid and the problem has been fixed for several years. Did you replace the tranny fluid?

CEL Code P1762 is Governor Pressure Sensor Offset Improper Voltage. Make sure all your wires going to the sensor are ok, then if they are I would look into a new Sensor. Hope this gives you some direction. Thanks for Using FixYa!

Sincerely,

JC

P1757 1T CCM 1996-2003 Cherokee, Grand Cherokee A/T Governor Pressure Above 3 PSI In Gear At 0 MPH Conditions: Engine started; vehicle driven to a speed over 30 mph, and the PCM detected the Governor Pressure Sensor was more than 3 psi with the requested pressure at 0 psi (95% duty cycle command) for 2.65 seconds. The fault must occur twice on one trip to set the code. Possible Causes: Check for the presence of other A/T related trouble codes Governor pressure Sensor is damaged or has failed Governor pressure Sensor VREF (5v) circuit is open or shorted Transmission valve body is leaking, damaged or has failed PCM has failed P1762 1T CCM 1996-2003 Cherokee, Grand Cherokee A/T Governor Pressure Sensor Offset Volts Too High/Low Conditions: Key on or engine running. Gear selector in Park or Neutral. PCM detected an out-of-range Governor Pressure Sensor signal for 1.3 seconds. The fault must occur 3 times on one trip to set a code. Possible Causes: Governor pressure Sensor VREF (5v) circuit is open Governor pressure Sensor ground circuit is open P/N switch is damaged or has failed (not operating properly) Transmission fluid has excessive debris or it is contaminated PCM has failed