Question about 2003 Jeep Grand Cherokee Limited

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Error p1784 My jeep grand Cherokee is having this error.

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  • 150 Answers

This code is for the LR pressure switch sens circuit. The switch is part of the TRS/solenoid block inside the transmission. (I presume at least that you have the 5-45RFE transmission with the 4.7L). The problem could be wiring or TCM, but mostly its the pressure switch itself and need a new solenoid assy.

Posted on May 28, 2014

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6ya6ya
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Posted on Jan 02, 2017

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  • 114 Answers

SOURCE: 2002 wj jeep grand cherokee p1756

The governor pressure sensor is the most likley cause however an inspection of fluid or debris in trans pan would be a good idea to make sure there's nothing excessive in it. Attached is a list of possible causes however the senor would be the most common.

POSSIBLE CAUSES

  • Powertrain control module
  • 5 volt supply circuit open
  • Check transmission fluid level and condition
  • GOV press sensor signal circuit shorted to voltage
  • GOV press sensor signal circuit shorted to sensor ground
  • GOV press sensor signal circuit shorted to ground
  • GOV pressure sensor signal circuit open
  • Sensor ground circuit open
  • GOV press sensor signal circuit shorted to voltage inside transmission
  • 5 volt supply circuit open inside transmission
  • Intermittent governor pressure solenoid
  • Internal transmission problem
  • Oil burnt or oil pan has excessive debris
  • Other transmission DTC'S
  • GOV press sensor signal circuit shorted to sensor ground inside transmission
  • Valve body
  • GOV press sensor signal circuit shorted to ground inside transmission
  • GOV press sensor signal circuit open inside transmission
  • GOV press sensor ground circuit open inside transmission
  • Governor pressure sensor (high)

Posted on Mar 26, 2009

maygemini
  • 147 Answers

SOURCE: Radiator fan will not turn off in my 2000 Jeep Grand Cherokee

usually the engine relay or cooling fan relay..!

Posted on May 08, 2009

  • 12 Answers

SOURCE: overhead console completely dead 2002 jeep grand cherokee laradeo

Check the fuses for the overhead console, could be that if not then the console needs to be replaced.....

Posted on Jun 05, 2009

techbuster
  • 5081 Answers

SOURCE: shift indicator light 1999 Jeep Grand Cherokee

There are two parts to it, a voltage resistor, and the EL panel itself.

You need to remove the console first. There are 2 screws under the front rubber pad, two under the cup holder, two in the bin. Remove those six first, take the storage bin out, then slide the rear cupholder out, remove the two screws under the cup holder, and one in front of it.

There are a total of 6 flat screws, and 3 self tapping screws you have removed.

Put the parking brake on, shift the tranny to N, and the transfer case to the middle position if equipped.

Remove the entire console. Slide the shifter beezel as far up vertically as you can. There are 4 clips you ned to remove to do it.
You will see a blue and black wire running into the back. Follow those wires to the resistor. You will see a transparent EL panel attatched to the resistor by two clips.

Usually, one or both of these clips has come loose, causing the light to work intermittantly. Clip them back on, and turn on the headlights to confirm that the light works correctly now.

Re-install everything in the opposite order.

Posted on Oct 11, 2009

  • 3640 Answers

SOURCE: 2002 jeep grand cherokee with 4.0 engine will die but restart

p0340 is the cam shaft sensor, this will cause it to cut off while driving, hardtime starting, p0351 is the ignition coil A primary/secondary curcuit mal function. p1391 is ignition system misfire, this could be plugs, wires, or coils. first of all have the cam sensor changed and it may correct the rest of the codes. when fixed turn light off with obd2 scanner. if you do not have one, then any auto parts store will erase the codes fo free of charge.

Posted on Jan 21, 2010

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Code 53


Hello yeremya1776,

For Jeep Grand Cherokee, 1991-95 models:

Code 53 - Internal Controller Failure - Internal engine controller fault condition detected during self test

Hope this helps.

Remember: Good things come to those who Rate!!

Mike

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