Top 10 2001 Jeep Grand Cherokee Questions & Answers

The electronic fan relay on this model fails very often, causing the problem you describe. I attached a picture of the location.

I just had the same problem of my 2001 jeep cherokee not starting with no gauges responding and a "no bus" reading. After reading the responses I changed out the CPS and my jeep now runs great! however, it was not as hard as I thought it would be. Very easy with 7/16 bit and a 10inch extender. In and out in less than 5 minutes. Finding it was the hardest part. Blends in with the bell housing. I did this from under the jeep with a good shop light. I paid about $80 for the part here in Atlanta, GA

I need to know what all has to be taken off, the easiest way, to replace a radiator fan motor for a 2001 grand cherokee?

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

usually it's in the washer bottle which is usually in the fender well, ahrd to get to.
The fuse that controls it should be listed in your owners manual. Usually a 10 amp fuse in the fuse panel inside the car usually on the instrument panel somewhere.

Check this LINK and this image for fuse location and description...



Hope helps (remember rated this).

Hi, pull out the ASD relay and use a 12 volt test light to interrogate the relay socket. Hook your test light clip to ground and probe the terminals of the relay socket. There should be one hot terminal when the key is off and 2 hot terminals when the key is on. One of these is the power from fuse 6 and the other is from the ignition switch. If these are good, suspect the PCM is not turning on the ASD relay or the relay is bad. You can check for the ground signal from the PCM by moving your test light clip to battery positive and probing the other terminals in the relay socket. Again, one terminal should light the light when the key is off and both should light the light with the key on. If not, the PCM is not turning on the relay, and you should suspect your anti-theft system. Please let me know if you have questions, and thanks for using FixYa.

first I want you disconnect the battery and Change filters and good oil transmission .and let me know .

either the chip in the key is bad (try the other key) or the receiver on the back of the ignition is bad. If both keys dont work there is nothing you can do but have it towed to the dealer.They have to replace and reprogram the unit and the keys! I am sorry.

i guess you are working FSM free (no book) on this complex car?
the factory service manual tells you what the steps are.....
and what the codes mean, and what checks to do ....
fuses are first.
reseat modules 2nd. (related)
are those all DTC errors. or just 1. of many."?
using what scan tool. does your tool show all jeep codes.
like the Innova 3160 does.?? or is your tool 1/2 brain dead... as many are.
one code. answer.....s..
first lets try to understand this code. (DTC)
which engine? 4.0L or 4.7L?

this error , i think does not mean both key FOBS are dead
but did you try both... car came with both.????/
But....
it means the SKIM is not talking, (check all fuses with a voltmeter.
not just gandering at them......????) key on, test.
that be first. 12vdc on both sides of fuses, means they are really good.
it can also mean the Data buss is dead. PCI buss. its called.
The factory scan tool can see this data and we can see
if the data is Dead, or garbled or is never even sent.
you cant do that.... so...... its palm hits head moment.
if you had a real scan tool , and say lots of P1, P2, or other Jeep codes about PCI buss failure, i'd suspect that PCI has problems.
but if not, then just the SKIM is dead.
there are 7 computers on that buss. even the RADIO and BCM
if the bus has issues, the BCM will throw lots of errors.
Seems to me the SKIM is bad, or both keys bad.
i dont think this error is key related. but gee, you have 2, to try...
and takes 5min work....




No Cluster Bus Messages Print this code data Trouble Code Conditions:
Key on or engine running; and the PCM determined that it did not receive any Security Key Bus Messages over the Data Bus line for 20 seconds. This malfunction may be an intermittent problem.
Possible Causes:

• Data Bus circuit from SKIM to PCM is damaged or it is open
• PCM unable to communicate with the Body Control Module
• PCM has failed, or the SKIM is damaged or has failed

that is all i know on this from DIY , perspective......