Question about Infiniti Cars & Trucks
I'M GETTING TWO CODES P1759 AND P1757
Posted by Anonymous on
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Posted on Jan 02, 2017
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
Posted on Nov 17, 2008
I would be interested in knowing if the thermostat is sticking open. Most Overdrives are prevented from engaging until the coolant temperature is over 177 degress F. Check you temp gauge...does it read Low? If so, change the t'stat, and see if that fixes your problem, or, if that does not help, get a complete transmission FLUSH, BEFORE you go out and get a rebuild. You just might save a ton of money.
Posted on Aug 29, 2009
Yes it has something to do with the transmission and the picture and legend of parts inside your transmission will help aid you in that valve's location. I would check the connector at the transmission (outside) for any moisture or debris that may have gotten inside that connector and cause a poor connection. Hope this helps...
Posted on Sep 02, 2013
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