Grand Cherokee 4WD V8-4.7L (2003)
and which one is now the spare. The spare tire sensor/transmitter transmits once per hour. The sensor/transmitters in the mounted wheels transmit once
per minute when the vehicle is moving at 40 km/h (25 mph).
REMOVE MAGNET FROM SPARE (5-TIRE TPM SYSTEM ONLY)
A magnet is used to initiate a sensor ID transmission. In the EVIC training procedure, the spare wheel is the last in the sequence. If the magnet is left
on the wheel, the sensor/transmitter will continue its ID transmission. If the EVIC detects 20 transmissions from the spare wheel in 60 seconds and the
vehicle speed is above 40 km/h (25 mph), it will: * request a chime. * display "REMOVE MAGNET FROM SPARE" for 60 seconds per
ignition-ON cycle.
TIRE PRESSURE UNAVAILABLE
The EVIC can detect high radio noise interference. When the noise level is too high to distinguish a transmission from a sensor/transmitter, it will:
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display "TIRE PRESSURE UNAVAILABLE" for 5 seconds.
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request a chime
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switch back to previous screen.
TIRE PRESSURE NOW AVAILABLE
If the "TIRE PRESSURE UNAVAILABLE" message was displayed because of radio noise interference, the EVIC will:
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display "TIRE PRESSURE NOW AVAILABLE" for 5 seconds.
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request a chime when the noise level no longer interferes with sensor/transmitter transmissions.
DIAGNOSING AND CLEARING SYSTEM FAULTS
All Tire Pressure Monitoring System Faults are specific to one location. If a "LOW BATTERY" fault is detected, the "TIRE SENSOR BAD /
MISSING" message will be displayed. The appropriate sensor/ transmitter can then be replaced.
If a single sensor/transmitter cannot be detected by the EVIC, replace that sensor transmitter. If none of the sensors/transmitters can be detected, refer
to symptoms in the EVIC.
SYSTEM TEST
A test of the Tire Pressure Monitoring System can be initiated in the EVIC. The test sequence is as follows:
1. Scroll to the blank display by pressing the STEP button.
2. Press and hold the RESET button for five seconds.
3. The EVIC will emit a beep to indicate the start of the test.
4. The EVIC will clear the sensor signal counters
5. The vehicle icon will be displayed with transmission counters at each corner. (Same display as for pressures but with counters in place of
pressures.)
6. Drive the vehicle at speeds above 40 km/h (25 mph) for 10 minutes.
7. The counters will increase by one each time a sensor signal is received by the EVIC (approximately 1/min from each wheel except the spare).
8. The test will continue until any EVIC button is pressed or until the ignition is cycled to OFF.
Vehicle Theft Security System
VEHICLE THEFT SECURITY SYSTEM
The vehicle theft security system (VTSS) is controlled by the body control module, which monitors vehicle doors, liftgate, liftglass and the ignition for
unauthorized operation. The alarm activates by sounding the horn, flashing the headlamps, hazard lamps, and the VTSS indicator lamp. The VTSS
does not prevent engine operation, this is done with the sentry key immobilizer module. Passive arming occurs upon normal vehicle exit by removing
the ignition key, opening the driver door, locking the doors with the power lock, and closing the driver door or locking the doors with RKE. The
indicator lamp on the dash will flash for 15 seconds, showing that arming is in progress. If no monitored systems are activated during this period, the
system will arm and the indicator will flash at a slower rate. When something triggers the alarm, the system will signal the headlamps, park lamps, and
horn for about 18 minutes.
For complaints about the Theft Alarm going off on it's own, use the DRBIII and select "Theft Alarm", "VTSS" then "Monitor Display" and read the
"Alarm Tripped By" status.
Tamper Alert - The VTSS tamper alert will sound the horn three times upon disarming to indicate a tamper condition has occurred.
Manual Override - The system will not arm if the doors are locked using the manual lock control or if the locks are actuated by an inside occupant
after the doors are closed.
To verify the system, proceed as follows:
1. Open the driver's door.
2. Remove the ignition key (but keep it in hand).
3. Lock the doors with the power lock switch or the RKE.
4. Close the driver's door.
NOTE:
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After the doors are closed, locking the doors with RKE will also arm the system.
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If the VTSS indicator lamp flashed, the system is operational and verified. If not, there may be a problem with the system.
