Jeep Cherokee
Service Manual
Power lock systems » Diagnosis and testing
Power lock system and remote
keyless entry system
On models without the Remote Keyless Entry
(RKE) option, proceed directly to the Door Module
diagnosis. As a preliminary diagnosis for models with
the RKE system, note the power lock system and
illuminated entry system operation while you actuate
both the Lock and Unlock functions with the power
lock switches and the RKE transmitter. Then, proceed
as follows:
- If the entire power lock system fails to function
with either the power lock switches or the RKE
transmitter, unplug the wire harness connector from
the RKE receiver and test the power lock system
operation again using the power lock switches. If the
power lock system now operates, see the Remote
Keyless Entry Receiver diagnosis in this group. If the
power lock system still fails to operate, see the Door
Module diagnosis in this group.
- If the power lock system functions with both
power lock switches, but not with the RKE transmitter,
see the Remote Keyless Entry Transmitter diagnosis
in this group.
- If one power lock motor fails to operate with
both of the power lock switches and/or the RKE
transmitter, see the Power Lock Motor diagnosis in
this group.
- If the RKE and power lock systems are functioning,
but the illuminated entry system fails to operate,
see the Remote Keyless Entry Receiver diagnosis in
this group.
More about «Diagnosis and testing»:
Power lock system and remote
keyless entry system