Dodge Caliber. Manual - part 391

Possible Causes

(P237) SECONDARY UNLOCK DRIVER WIRE OPEN

(P235) SECONDARY LOCK DRIVER WIRE OPEN

DOOR LATCH OR LIFTGATE MOTOR

Theory of Operation

The secondary lock is a dead bolt that prevents the door from being opened when the vehicle has been armed. It
can only be locked when the key is out of the ignition, all doors are closed, the front door ajar switch transition has
been completed and the RKE fob is pressed in the armed position. The secondary lock will operate approximately
18 seconds after the door latches are locked. The secondary locks are unlocked by a RKE fob unlock command
after approximately 375 ms later than the door latches. They will also unlock when a valid SKIM key is turned to the
ON position or the vehicle is driven and reaches Auto Door Lock (rolling) status. This system is only used on Right
Hand Drive vehicles.

Diagnostic Test

TEST FOR DIAGNOSTIC TROUBLE CODES

Turn the ignition on.

With the scan tool, record and erase DTC’s

Operate the Driver Door Lock Switch in all positions several times.

Cycle the ignition from on to off and wait for five seconds.

Turn the ignition on.

With the scan tool, read the active DTC’s.

Does the scan tool display any Power Door Lock related DTC’s?

>> Go To 2

Yes

>> Refer to the Table of Contents in this section to diagnose and repair the DTC’s.

DOOR LOCK MOTOR CIRCUIT

Lower the driver window.

Turn the ignition off.

Disconnect the inoperative Door Latch (Motor) connector.

Connect a 12 volt test light between the (P235) Secondary Lock Driver
and the (P237) Secondary Unlock Driver circuits in the latch connector.

NOTE: Graphic shows the Passenger Front Latch – all others sim-
ilar.
Remove the key from the ignition switch.

Using the RKE fob, operate the door lock. Wait 30 seconds and then
operate the door unlock. Repeat this several times while observing the
test light.

Does the test light illuminate brightly when the locks are actu-
ated in both directions?

Yes

>> Replace the Door latch Assembly (or motor).

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/POWER LOCKS - DIAGNOSIS AND TEST-
ING)

>> Go To 3

POWER LOCKS - ELECTRICAL DIAGNOSTICS

8N - 41

(P237) SECONDARY UNLOCK DRIVER WIRE OPEN

Using a 12-volt test light connected to ground, check the (P237) Sec-
ondary Unlock Driver circuit.

Using the RKE fob, operate the door lock. Wait 30 seconds and then
operate the door unlock. Wait 30 seconds and repeat this several times,
waiting 30 seconds between fob presses, while observing the test light.

Does the test light illuminate brightly when the unlock cycle is
actuated?

Yes

>> Go To 4

>> Repair the (P237) Secondary Unlock Driver wire for an

open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/POWER LOCKS - DIAGNOSIS AND TEST-
ING)

(P235) SECONDARY LOCK DRIVER WIRE OPEN

Using a 12-volt test light connected to ground, check the (P235) Sec-
ondary Lock Driver circuit.

Close all doors.

Does the test light illuminate brightly when the lock cycle is
actuated?

Yes

>> Test Complete.

>> Repair the (P235) Secondary Lock Driver wire for an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/POWER LOCKS - DIAGNOSIS AND TEST-
ING)

8N - 42

POWER LOCKS - ELECTRICAL DIAGNOSTICS

POWER LOCKS

TABLE OF CONTENTS

page

POWER LOCKS

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
DIAGNOSIS AND TESTING - POWER LOCKS . . . 45
STANDARD PROCEDURE

STANDARD PROCEDURE - DOUBLE

ACTIVATION UNLOCK. . . . . . . . . . . . . . . . . . . . . . 46

STANDARD PROCEDURE - ROLLING DOOR

LOCKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

DOOR LOCK SWITCH

DIAGNOSIS AND TESTING - DOOR LOCK

SWITCH

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

DOOR LOCK MOTOR

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
DIAGNOSIS AND TESTING - DOOR LOCK

MOTOR

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

LIFTGATE LOCK MOTOR

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

REMOTE KEYLESS ENTRY MODULE

DIAGNOSIS AND TESTING - REMOTE

KEYLESS ENTRY MODULE

. . . . . . . . . . . . . . . . . 52

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

REMOTE KEYLESS ENTRY TRANSMITTER

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
DIAGNOSIS AND TESTING - REMOTE

KEYLESS ENTRY TRANSMITTER

. . . . . . . . . . . 53

STANDARD PROCEDURE

STANDARD PROCEDURE - HORN CHIRP

TOGGLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

STANDARD PROCEDURE - TRANSMITTER

PROGRAMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

STANDARD PROCEDURE - RKE

TRANSMITTER BATTERIES . . . . . . . . . . . . . . . . 54

SPECIFICATIONS - TRANSMITTER RANGE . . . . . 55

POWER LOCKS

8N - 43

POWER LOCKS

DESCRIPTION

POWER LOCKS

The power lock system allows all of the doors and the liftgate to be locked or unlocked electrically by operating a
switch on either front door trim panel. The power lock system receives non-switched battery current through a fuse
in the Fuse Block, so that the power locks remain operational, regardless of the ignition switch position.

This vehicle also offers several customer programmable features, which allows the selection of several optional
electronic features to suit individual preferences.

The power lock system for this vehicle can also be operated remotely using the available Remote Keyless Entry
(RKE) system Radio Frequency (RF) transmitters, if equipped.

Certain functions and features of the power lock system rely upon resources shared with other electronic modules
in the vehicle over the Programmable Communications Interface (PCI) data bus network. For proper diagnosis of
these electronic modules or of the PCI data bus network, the use of a scan tool and the appropriate diagnostic
information are required.

CHILD PROTECTION LOCKS

To provide a safer environment for children riding in the rear seat, the rear doors have the “child protection” door
lock system.

The child protection locks are on the rear doors only. The lock, when engaged, will disable the inside door handle
from opening the door. The lock is part of the latch/lock assembly.

DOOR LOCK INHIBIT

With the key in the ignition switch and the driver door open, the Remote Keyless Entry (RKE) module will ignore the
command to lock the power door locks using the interior door lock switches. Once the key is removed, or the drivers
door is closed, the RKE module will allow the power locks to lock using the door lock switch.

REMOTE KEYLESS ENTRY

The remote keyless entry system allows locking and unlocking of the vehicle door(s) liftgate, panic alarm and arm-
ing or disarming of the vehicle theft security system (if equipped), using the hand held (RF) transmitter.

The RKE module is also referred to as the Alarm Remote Keyless Entry Module (ARKEM). It also contains the
functionality for the Vehicle Theft Security System (VTSS).

The module may receive signals from up to four transmitters. Each transmitter has its own code, and the code is
programmed and stored into the module memory. If a transmitter is replaced or additional transmitters are added,
the codes for all units have to be reprogrammed into the RKE module or ARKEM memory. If a module is replaced,
the transmitter codes must be stored in the new memory (by performing the steps for programming transmitters).
The RKE or ARKEM is capable of retaining all transmitter codes when power is removed from the module.

SECONDARY LOCKS — RHD ONLY

The secondary lock is a dead bolt that prevents the door from being opened when the vehicle is armed. It can only
be actuated when the key is out of the ignition, all doors are closed and the lock function on the RKE fob is
pressed. The secondary lock will arm approximately 16 seconds after the door latches are locked. The secondary
locks are unlocked by a RKE fob unlock command approximately 375 milliseconds after the door latches are
unlocked. They will also unlock when a valid SKIM key is turned to the ON position. The secondary locks will also
be unlocked when the vehicle is driven and reaches the Auto Door Lock (rolling) status for safety reasons. This
system is only used on Right Hand Drive vehicles.

8N - 44

POWER LOCKS

Content .. 389 390 391 392 ..