Wait-To-Start Lamp; Water-In-Fuel Lamp; Service Procedures; Vehicle Information Center - Jeep 1997 Grand Cherokee Service Manual

8E - 20 INSTRUMENT PANEL SYSTEMS
DIAGNOSIS AND TESTING (Continued)
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE RESTRAINT
SYSTEMS BEFORE ATTEMPTING STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL COM-
PONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT
IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE PERSONAL INJURY.
(1) Unplug the washer fluid level sensor wire har-
ness connector on the washer reservoir bottle. Check
for continuity between the ground circuit cavity of
the wire harness connector and a good ground. There
should be continuity. If OK, go to Step 2. If not OK,
repair the open circuit as required.
(2) With the washer fluid at the proper level,
check the resistance between the two terminals of
the washer fluid level sensor. The resistance should
be 3000 to 3500 ohms. If OK, go to Step 3. If not OK,
replace the faulty sensor.
(3) Disconnect and isolate the battery negative
cable. Remove the VIC module as described in this
group. Unplug the VIC module wire harness connec-
tor. Check for continuity between the washer fluid
level sense circuit cavity of the VIC module wire har-
ness connector and a good ground. There should be
no continuity. If OK, go to Step 4. If not OK, repair
the short circuit as required.
(4) Check for continuity between the washer fluid
level sense circuit cavities of the VIC module wire
harness connector and the washer fluid level sensor
wire harness connector. If OK, replace the faulty VIC
module. If not OK, repair the open circuit as
required.

WAIT-TO-START LAMP

The diagnosis found here addresses an inoperative
wait-to-start lamp condition. If lamp accuracy is sus-
pect, diagnosis should be performed with a DRB scan
tool as described in the proper Powertrain Diagnostic
Procedures manual. For circuit descriptions and dia-
grams, refer to 8W-40 - Instrument Cluster in Group
8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE RESTRAINT
SYSTEMS BEFORE ATTEMPTING STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL COM-
PONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT
IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE PERSONAL INJURY.
If the wait-to-start lamp fails to light during the
bulb test (about four seconds after the ignition switch
is turned to the On position), replace the wait-to-
start lamp bulb with a known good unit. If the lamp
still fails to operate, diagnosis of the lamp, the
instrument cluster circuitry, or the CCD data bus
should be performed with a DRB scan tool as
described in the proper Body Diagnostic Procedures
manual. Diagnosis of the Powertrain Control Module
(PCM) should be performed with a DRB scan tool as
described in the proper Powertrain Diagnostic Proce-
dures manual.

WATER-IN-FUEL LAMP

The diagnosis found here addresses an inoperative
water-in-fuel lamp condition. If the lamp comes on
and stays on with the ignition switch in the On posi-
tion or while driving, be certain to check for excess
water accumulation in the fuel filter/water separator
before attempting further diagnosis. Refer to Group
14 - Fuel Systems for diagnosis and service of the
water-in-fuel sensor. For circuit descriptions and dia-
grams, refer to 8W-40 - Instrument Cluster in Group
8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO GROUP 8M - PASSIVE RESTRAINT
SYSTEMS BEFORE ATTEMPTING STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL COM-
PONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT
IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE PERSONAL INJURY.
If the water-in-fuel lamp fails to light during the
bulb test (about three seconds after the ignition
switch is turned to the On position), replace the
water-in-fuel lamp bulb with a known good unit. If
the indicator lamp still fails to operate, diagnosis of
the lamp, the instrument cluster circuitry, or the
CCD data bus should be performed with a DRB scan
tool as described in the proper Body Diagnostic Pro-
cedures manual. Diagnosis of the Powertrain Control
Module (PCM) should be performed with a DRB scan
tool as described in the proper Powertrain Diagnostic
Procedures manual.

SERVICE PROCEDURES

VEHICLE INFORMATION CENTER

The following flow charts describe the procedures
to perform an initial set-up of the Vehicle Informa-
tion Center (VIC), and how to reset the VIC service
reminder or clock settings.
ZG