Grand Cherokee 4WD V8-4.7L VIN N (2000)
Trunk / Liftgate Latch Release Cable: All Technical Service Bulletins
Liftgate - Will Not Open Correctly
NUMBER: 23-020-02
GROUP: Body
DATE: May 20, 2002
SUBJECT:
New Repair Procedures With Separate Liftgate Latch Motor And Components
OVERVIEW:
This bulletin involves additional procedures to assist the technician in the diagnosis and repair of the liftgate latch system.
MODELS:
1999 - 2002 (WJ) Grand Cherokee (Domestic and International Markets)
2001 - 2002 (WG) Grand Cherokee (International Markets)
SYMPTOM/CONDITION:
The customer may describe a condition where the liftgate does not open correctly when the rear liftgate outside handle is used.
DESCRIPTION:
The liftgate latch system consists of the following general components:
1.
An outside latch handle with an adjustable latch rod retention clip.
2.
A latch control assembly consisting of: an electric (power lock motor) actuator, a plastic manual lock/unlock lever mechanism, two adjustable
latch cable retention clips, and a metal bracket.
3.
Two latch cables, each with a threaded end for adjustment purposes.
4.
Two liftgate strikers, with spring loaded wedge bumper, that attach to the body D-Pillar (side) of the liftgate opening. The liftgate strikers are
adjustable.
5.
Two liftgate latches, each with a rubber stop bumper. Each latch attaches to the vertical side of the liftgate and engage the respective liftgate
striker. The rubber bumper is integral to a latch reinforcement plate that is held in place by the same screws used to secure the latch to the liftgate.
The rubber bumpers, in conjunction with the spring loaded plastic wedge bumper of the striker, serve to limit liftgate vibration when closed. The
latches, wedges, and bumpers are not adjustable.
6.
A latch rod connecting the outside liftgate handle to the latch assembly. The latch rod has a threaded end to allow for adjustment.
DIAGNOSIS:
When the liftgate fails to open as designed, then the possible causes may be one or more of the following:
1.
The liftgate, striker(s), or bumper(s) may be out of position, adjustment, or worn.
2.
One or both latches are worn (do not operate smoothly).
3.
The liftgate latch actuator (power lock motor) is inoperative or partially inoperative.
4.
The latch rod between the outside latch handle and the latch control assembly is loose or out of adjustment.
5.
One or both latch cables are out of synchronization. Either loose, binding, stretched, or out of adjustment.
PARTS REQUIRED:
