Jeep Grand Cherokee WJ. Manual - part 730

POWER FOLD-AWAY MIRROR

TABLE OF CONTENTS

page

POWER FOLD-AWAY MIRROR

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . . 1

POWER FOLD-AWAY MIRROR. . . . . . . . . . . . . . 1

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

POWER FOLD-AWAY MIRROR

DESCRIPTION

Some vehicles are equipped with Power Fold-Away

Side View Mirrors. This feature allows both the
driver and passenger side view mirrors to fold
inward (retract) on demand. This feature is con-
trolled by an additional switch located on the power
mirror switch.

The fold-away side view mirror is attached to the

vehicle’s door in the same manner as mirrors without
the fold-away option. The fold-away mirrors unique
option is the internal motor which allows the mirrors
to fold inward on demand. the fold-away mirror
motor is not serviceable separately, and if a motor is
found to be faulty the entire side view mirror must
be replaced.

DESCRIPTION

This Service Manual Supplement includes

ONLY the information that is new or updated
for 2001 Model Year. All other Service Manual
information is in the 2000 Model Year Service
Manual.

When you are using this information you may

be referred to another section of the Service
Manual. The refer to is written differently than
in prior years.

OPERATION

When the mirror retract switch is depressed, both

of the side view mirrors will fold inward, thus mak-

ing the overall width of the vehicle the smallest pos-
sible. This can be very helpful where parking space is
an absolute minimum.

DIAGNOSIS AND TESTING - POWER
FOLD-AWAY MIRROR

The most reliable, efficient and accurate means to

diagnose the power mirror system requires the use of
a DRB scan tool and the proper Diagnostic Proce-
dures manual. The DRB scan tool can provide confir-
mation that the PCI data bus is functional, that all
of the electronic modules are sending and receiving
the proper messages on the PCI data bus, that the
power mirror motors are being sent the proper hard
wired outputs, and that the mirror position potenti-
ometers are returning the proper outputs to the door
modules for them to perform their power mirror sys-
tem functions.

REMOVAL

The fold-away mirror motor is not serviceable sep-

arately, and if a motor is found to be faulty the entire
side view mirror must be replaced. (Refer to 8 -
ELECTRICAL/POWER MIRRORS/SIDEVIEW MIR-
ROR - REMOVAL).

POWER FOLD-AWAY MIRROR

8Ns - 1

2001 JEEP GRAND CHEROKEE

VEHICLE THEFT SECURITY

TABLE OF CONTENTS

page

VEHICLE THEFT SECURITY

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . . 1

VEHICLE THEFT SECURITY SYSTEM . . . . . . . . 1
SENTRY KEY IMMOBILIZER SYSTEM . . . . . . . . 2

STANDARD PROCEDURE . . . . . . . . . . . . . . . . . . . 3

SKIS INITIALIZATION . . . . . . . . . . . . . . . . . . . . . 3
TRANSPONDER PROGRAMMING . . . . . . . . . . . 4

HOOD AJAR SWITCH

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . . 6

HOOD AJAR SWITCH . . . . . . . . . . . . . . . . . . . . 6

REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

VEHICLE THEFT SECURITY

DESCRIPTION

This Service Manual Supplement includes

ONLY the information that is new or updated
for 2001 Model Year. All other Service Manual
information is in the 2000 Model Year Service
Manual.

When you are using this information you may

be referred to another section of the Service
Manual. The refer to is written differently than
in prior years.

DIAGNOSIS AND TESTING - VEHICLE THEFT
SECURITY SYSTEM

The VTSS-related hard wired inputs to and out-

puts from the Body Control Module (BCM), the
Driver Door Module (DDM), or the Passenger Door
Module (PDM) may be diagnosed and tested using
conventional diagnostic tools and procedures. Refer
to the appropriate wiring information. The wiring
information includes wiring diagrams, proper wire
and connector repair procedures, further details on
wire harness routing and retention, as well as pin-
out and location views for the various wire harness
connectors, splices and grounds.

However, conventional diagnostic methods may not

prove conclusive in the diagnosis of the BCM, the
DDM, the PDM, or the Programmable Communica-
tions Interface (PCI) data bus network. In order to
obtain conclusive testing of the VTSS, the BCM, the
DDM, the PDM, and the PCI data bus network must
also be checked. The most reliable, efficient, and
accurate means to diagnose the VTSS requires the
use of a DRBIII

t scan tool and the appropriate diag-

nostic information. The DRBIII

t scan tool can pro-

vide confirmation that the PCI data bus network is
functional, that all of the electronic modules are
sending and receiving the proper messages over the
PCI data bus, and that these modules are receiving
the proper hard wired inputs and responding with
the proper hard wired outputs needed to perform
their many functions. See the “Vehicle Theft Security
System” menu item on the DRBIII

t scan tool.

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.

VEHICLE THEFT SECURITY

8Qs - 1

2001 JEEP GRAND CHEROKEE

DIAGNOSIS AND TESTING - SENTRY KEY
IMMOBILIZER SYSTEM

THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.

SENTRY KEY IMMOBILIZER SYSTEM DIAGNOSIS

CONDITION

POSSIBLE CAUSES

CORRECTION

SKIS INDICATOR FAILS TO
LIGHT DURING BULB TEST

1. Bulb faulty.

1. Perform the instrument cluster actuator test.
(Refer to 8 - ELECTRICAL/INSTRUMENT
CLUSTER - DIAGNOSIS AND TESTING -
ACTUATOR TEST). Replace the faulty bulb, if
required.

2. Fuse faulty.

2. Check the SKIM fused B(+) fuse and the fused
ignition switch output (st-run) fuse in the JB.
Replace fuses, if required.

3. Ground path faulty.

3. Check for continuity to ground at the connector
for the SKIM. Repair wiring, if required.

4. Battery feed faulty.

4. Check for battery current at the connector for
the SKIM. Repair wiring, if required.

5. Ignition feed faulty.

5. Check for battery current at the connector for
the SKIM with the ignition switch in the On
position. Repair wiring, if required.

SKIS INDICATOR FLASHES
FOLLOWING BULB TEST

1. Invalid key in ignition
switch lock cylinder.

1. Replace the key with a known valid key.

2. Key-related fault.

2. Use a DRBIII

scan tool and the appropriate

diagnostic information for further diagnosis.

SKIS INDICATOR LIGHTS
SOLID FOLLOWING BULB
TEST

1. SKIS system malfunction/
fault detected.

1. Use a DRBIII

scan tool and the appropriate

diagnostic information for further diagnosis.

2. SKIS system inoperative.

2. Use a DRBIII

scan tool and the appropriate

diagnostic information for further diagnosis.

SKIS INDICATOR FAILS TO LIGHT DURING BULB TEST

If the Sentry Key Immobilizer System (SKIS) indi-

cator in the instrument cluster fails to illuminate for
about three seconds after the ignition switch is
turned to the On position (bulb test), perform the
instrument cluster actuator test. (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING - ACTUATOR TEST). If the bulb
fails to operate during the actuator test, replace the
bulb with a known good unit. If the SKIS indicator
still fails to light during the bulb test, a wiring prob-
lem resulting in the loss of battery current or ground
to the Sentry Key Immobilizer Module (SKIM) should
be suspected, and the following procedure should be

used for diagnosis. Refer to the appropriate wiring
information. The wiring information includes wiring
diagrams, proper wire and connector repair proce-
dures, details of wire harness routing and retention,
connector pin-out information and location views for
the various wire harness connectors, splices and
grounds.

NOTE: The following tests may not prove conclu-
sive in the diagnosis of this system. The most reli-
able, efficient, and accurate means to diagnose the
Sentry Key Immobilizer System requires the use of
a DRBIII

scan tool. Refer to the appropriate diag-

nostic information.

8Qs - 2

VEHICLE THEFT SECURITY

VEHICLE THEFT SECURITY (Continued)

2001 JEEP GRAND CHEROKEE

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