Rear window latch does not open

Tiny
BLAKE L. THROWER
  • MEMBER
  • 2000 JEEP GRAND CHEROKEE
  • V8
  • 4WD
  • AUTOMATIC
  • 187,000 MILES
The rear window latch will not release the rear window and allow it to lift.

The rear door latch does work and locks and unlocks appropriately.
Sunday, February 3rd, 2019 AT 8:48 AM

8 Replies

Tiny
BLAKE L. THROWER
  • MEMBER
  • 5 POSTS
I put direct power to the solenoid side and it works. I ohm out the switch side (normally open) and the switch shorts or closes.
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Sunday, February 3rd, 2019 AT 9:17 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

Let's start by checking for power at fuse # 8 and #12. here is a guide to help you check for power and the fuse locations with the wiring diagrams so you can see how the system works:

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.
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Monday, February 4th, 2019 AT 12:34 PM
Tiny
BLAKE L. THROWER
  • MEMBER
  • 5 POSTS
The fuses are good. But using the diagrams you sent I cannot tell where the four wires are for the rear window latch. It looks like (but not sure) two of the wires are about in the middle of the first diagram (Lift-gate Flip up push button switch) but since it says Lift-gate I do not know of it is specifically for the rear window lift. Nor can I see or find the other two wires for the connection on the other side of the window latch.
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Tuesday, February 5th, 2019 AT 11:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yes, you are right can you see the lift-gate motor has a cut out switch that won't allow the window part to work unless the motor has closed the switch? Bottom right of the second diagram.
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Wednesday, February 6th, 2019 AT 11:04 AM
Tiny
BLAKE L. THROWER
  • MEMBER
  • 5 POSTS
Thank you Ken. The diagrams were very helpful. I'm sorry I took so long to reply but I had to order a part and wanted to make sure it fixed the problem prior to replying.
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Thursday, February 14th, 2019 AT 4:17 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Thanks for getting back. Have you got the relay?
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Friday, February 15th, 2019 AT 10:40 AM
Tiny
BLAKE L. THROWER
  • MEMBER
  • 5 POSTS
Yes and it now works. It was the relay inside the rear door latch lock mechanism. It would not allow the 12vdc to pass through to the rear window latch switch.
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Friday, February 15th, 2019 AT 10:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Good to hear, please use 2CarPros anytime we are here to help.
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Monday, February 18th, 2019 AT 9:06 AM

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