Door locks will not operate correctly?

Tiny
AMOODY
  • MEMBER
  • 2004 JEEP GRAND CHEROKEE
  • 155,000 MILES
Hello,

The remote door lock/panic of my vehicle is not working any more. Changed the battery on the remote itself and not working.

Battery of the car went down for a week or so, and I had to use a booster to switch on the ignition. Is something like that, I mean a long period without battery, related to the remote not working any more?

Thank you
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Saturday, August 29th, 2020 AT 12:37 PM (Merged)
Tiny
KEN L
  • ADMIN
When you jumped the car did you connect the jumpers correctly, not backwards? If okay lets check the security system fuses (#22, 28, 7 and 18). Here is a guide to help us get started with the security system wiring diagrams and fuse locations below:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Saturday, August 29th, 2020 AT 12:37 PM (Merged)
Tiny
AMOODY
  • MEMBER
Checked fuses. All okay. However, found this weird button and switch in the fuse box. What that would be?
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Saturday, August 29th, 2020 AT 12:37 PM (Merged)
Tiny
KEN L
  • ADMIN
Oh boy, this looks like an aftermarket alarm system has been installed which cause all kinds of problems. Can you follow the wiring to see where it goes? Try to find the control box and take a picture so I can see what's going on.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
CASEY WEEKS
  • MEMBER
  • 2004 JEEP GRAND CHEROKEE
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 181,633 MILES
The only window a lock that works is on the front driver side. Have checked fuses and wires in the door jam (none were bad, and all wires are intact) and have replaced the master switch. Still the only door working is the front driver door.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
KEN L
  • ADMIN
Hello,

It sounds like the passengers door module is out but to be sure here is the testing process and the door lock and windows so you can see how it works. (Below)

TESTING

If the problem being diagnosed is a rear door window that does not operate from the rear door switch, but does operate from the master switch on the driver side front door, (Refer to DIAGNOSIS AND TESTING - POWER WINDOW SWITCH ). If the problem is a passenger side front or rear window that operates from the switch on that door, but does not operate from the master switch on the driver side front door, use a DRB scan tool and the proper Diagnostic Procedures to diagnose the circuitry of both door modules and the PCI data bus. For complete circuit diagrams, refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

Disconnect and isolate the battery negative cable. Remove the trim panel from the front door, but do not disconnect the door wire harness connectors from the door module. Go to Step 2.
Check the 15-way door wire harness connector for the door module to see that it is fully seated in the door module connector receptacle. If OK, go to Step 3. If not OK, properly connect the 15-way door wire harness connector for the door module to the door module connector receptacle.
Disconnect the 15-way door wire harness connector from the door module connector receptacle. Check for continuity between the ground circuit cavity of the 15-way door wire harness connector for the door module and a good ground. There should be continuity. If OK, go to Step 4. If not OK, repair the open ground circuit to ground as required.
Connect the battery negative cable. Check for battery voltage at the fused B(+) circuit cavity of the 15-way door wire harness connector for the door module. If OK, go to Step 5. If not OK, repair the open fused B(+) circuit to the fuse in the Power Distribution Center (PDC) as required.
If the inoperative window is on a front door, go to Step 6. If the inoperative window is on a rear door go to Step 9.
Disconnect and isolate the battery negative cable. Disconnect the door wire harness connector from the inoperative power window motor wire harness connector. Check for continuity between the front window driver up circuit cavity of the 15-way door wire harness connector for the door module and a good ground. Repeat the check for the front window driver down circuit. In each case there should be no continuity. If OK, go to Step 7. If not OK, repair the shorted front window driver up or down circuit as required.
Check for continuity between the front window driver up circuit cavities of the 15-way door wire harness connector for the door module and the door wire harness connector for the power window motor. Repeat the check for the front window driver down circuit. In each case there should be continuity. If OK, go to Step 8. If not OK, repair the open front window driver up or down circuit as required.
Reconnect the 15-way door wire harness connector back into the door module connector receptacle. Connect the battery negative cable. Connect the probes of a reversible DC digital voltmeter to the door wire harness connector for the power window motor. Observe the voltmeter while actuating the switch for that window in the up and down directions. There should be battery voltage for as long as the switch is held in both the up and down positions, and no voltage in the neutral position. If OK, (Refer to DIAGNOSIS AND TESTING - WINDOW MOTOR ). If not OK, replace the faulty door module.
Check the rear door power window switch continuity. (Refer to DIAGNOSIS AND TESTING - POWER WINDOW SWITCH ). If OK, go to Step 10. If not OK, replace the faulty rear door power window switch.
Disconnect and isolate the battery negative cable. Reconnect the door wire harness connector to the rear door power window switch. Disconnect the door wire harness connector from the inoperative power window motor wire harness connector. Check for continuity between the rear window driver up circuit cavity of the 15-way door wire harness connector for the door module and a good ground. Repeat the check for the rear window driver down circuit. In each case there should be no continuity. If OK, go to Step 11. If not OK, repair the shorted rear window driver up or down circuit as required.
Check for continuity between the rear window driver up circuit cavities of the 15-way door wire harness connector for the door module and the power window motor wire harness connector. Repeat the check for the rear window driver down circuit. In each case there should be continuity. If OK, go to Step 12. If not OK, repair the open rear window driver up or down circuit as required.
NOTE: The door module feeds battery current to both terminals of the rear door power window motors when the power window lockout switch is in the Unlock position, until the master window switch on the driver side front door is actuated. The door module feeds ground to both terminals of the rear door power window motor when the power window lockout switch is in the Lock position, until the master window switch on the driver side front door is actuated.
Reconnect the 15-way door wire harness connector for the door module to the door module connector receptacle. Connect the battery negative cable. Check for battery voltage at each cavity in the door wire harness connector for the power window motor. Each cavity should have battery voltage when the power window switch is in the neutral position. Each cavity should also have battery voltage in one other switch position, either up or down, and zero volts with the switch in the opposite position. If OK, (Refer to DIAGNOSIS AND TESTING - WINDOW MOTOR ). If not OK, replace the faulty door module.

Check out the diagrams (Below). Please let us know what happens.

Cheers, Ken
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
SHERRY MINER
  • MEMBER
  • 2004 JEEP GRAND CHEROKEE
  • V8
  • 4WD
  • AUTOMATIC
  • 95,000 MILES
I have a couple things that are going on with my vehicle right now. One is my door locks do not work the drivers side will lock but not lock any other doors. Also, the passenger side window will not roll down at all, the inside lights will not turn off automatically, I have to switch them off at all times. And now the outside of the car. When my head lights are on the only light that is on is the passenger side light, I do not have brake lights when the lights are on and when they are the only light that comes on is the drivers side. I have been told to change all the bulbs, and to look at all the sockets. Has this happened to anyone else and what did you do to fix the problem?
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
KEN L
  • ADMIN
Hi Sherry,

This sounds like the BCM has gone out and needs to be replaced. Here is the location of the unit you will need to have it programmed by a shop for about $130.00 bucks.

Check out the diagrams (Below)

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
BIG_DADDY656
  • MEMBER
  • 2004 JEEP GRAND CHEROKEE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 132,000 MILES
I have a 2004 Jeep Grand Cherokee. All of a sudden, the automatic door locks quit working except for the drivers door. At the same time, the passenger windows would no longer work and both of the keyless entry key-fobs also quit working.
Has anyone got any information regarding these problems? Is it possible that these issues are related and if so how?
I really need to get this fixed since this is my daughter's vehicle and the only way to lock the rear lift gate is with the automatic locks. She is leaving to go back to school very soon.

Thanks.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Check for bad grounds. Check the body control module.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
CAMIM
  • MEMBER
  • 2004 JEEP GRAND CHEROKEE
  • V8
  • 4WD
  • AUTOMATIC
I have a 2004 Jeep Grand Cherokee. Trying to find out if my problem had been on recall. The issue is that I have had the following repaired twice and now it has occurred for the third time. The remote does not lock the car. When I try to lock it the inside lights remain on and the doors do not lock. All the buttons on the driver door do not work. I have to insert the key in the driver door to lock the door. However, the remote will lock the back ddors. The alarm light as well as the alarm will not activate. Windows can not be rolled up or down.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
CARADIODOC
  • EXPERT
Pull the rubber boot back and check for broken or frayed wires between the driver's door hinges. The wires typically break very near the door or the "A" pillar. The harness can be unbolted to make repairs easier.

Caradiodoc
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
LAURA JEAN MILLER-RIEVERT
  • MEMBER
  • 2002 JEEP GRAND CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 194,000 MILES
I have the Laredo model and I am having problems with the door locks. The main door will unlocking and lock when I push it, but it will not unlock any of the other doors on the truck. I see everybody having problems with windows and door locks but mine is just the door locks not working for all the passenger doors. I was wondering if anybody had any ideas on what to check for?
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
The first thing I would check is the switch itself. Check to see if power is being properly distributed from it. Also, check for broken or damaged wiring between the door and door frame. Keep in mind how many times the wiring moves there when you open and close the door.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
SASSAFRAS
  • MEMBER
  • 1995 JEEP GRAND CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
I hit a large deep hole in the snow over this winter on the right side of my jeep, and now my power door locks door chimes entry lights (above or below) and radio quit working I took the right side of the dash apart, and didn't see any visible problems where do I go From here? On a fixed D A V income so any help would be greatly appreciated
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)
Tiny
HMAC300
  • EXPERT
Check things in pic and fuses maybe the fuse block has loose wires on rh side. Also check ground for doors then have scanned may be the remote module.
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Saturday, August 29th, 2020 AT 12:38 PM (Merged)

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