Chrysler 300M 2002 Service Manual page 1739

GENERAL INFORMATION
3.12.4 SYSTEM FAULTS
NOTE: The Remote Tire Pressure Monitor
Sensors (RTPM)
serviceable. For a Sensor Failure or Low
Battery fault, the RTPM must be replaced.
There are four conditions that will cause a Tire
Pressure Monitoring System fault to be set. All fault
codes are associated with a specific wheel location.
1. If the EVIC detects a non-transmitting Sensor/
Transmitter in a road wheel for 10 minutes at a
vehicle speed above 40 Km/H (25 MPH), it will:
a. Store an active fault code.
b. Request a chime.
c. Display SERVICE TIRE PRESS SYSTEM .
d. Display a dashed line at the wheel location on
the graphic display if the display is activated.
2. When the EVIC detects:
•
A low pressure sensor/transmitter battery sta-
tus for 7 consecutive ignition cycles,
• Any sensor transmitting at a shorter than
expected interval or,
•
No valid pressure sensor ID from the spare
tire for 20 consecutive ignition cycles spaced at
least one hour apart, it will:
a. Store an active fault code.
b. Request a chime.
c. Display SERVICE TIRE PRESS SYSTEM .
Use the DRBIII Input/Output function to fur-
ther isolate the specific concern.
The DRBIII can be queried to determine the
Sensor/Transmitter status:
• Invalid Pressure - The Sensor/Transmitter is
reporting a negative pressure or a pressure above
434 kPa (63 psi).
•
Low Batt - The Sensor/Transmitter has re-
ported a low battery status for seven consecutive
ignition cycles.
•
Trained - The Sensor/Transmitter ID code is
recognized by the EVIC.
• Active - The vehicle is moving at 40 km/h (25
mph) and the Sensor/Transmitter is awake and
transmitting as expected by the EVIC.
SPARE WHEEL AUTO-LOCATE
If the spare tire is mounted on the vehicle, the
EVIC will detect the relocation and determine from
the sensor transmit intervals, which wheels are
mounted 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 mov-
ing at 40 km/h (25 mph).
are not internally
REMOVE MAGNET FROM SPARE
A magnet is used to initiate a sensor ID transmis-
sion. 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 con-
tinue 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 interfer-
ence. When the noise level is too high to distinguish
a transmission from a sensor/transmitter, it will:
•
Display TIRE PRESSURE UNAVAILABLE for
5 seconds.
• Request a chime.
• Switch to the graphic display and show dashed
lines instead of the tire pressure for the wheel(s)
affected by the radio interference.
TIRE PRESSURE NOW AVAILABLE
If the TIRE PRESSURE UNAVAILABLE mes-
sage was displayed because of radio noise interfer-
ence, the EVIC will:
• Display TIRE PRESSURE NOW AVAILABLE
for 5 seconds.
•
Request a chime.
When the noise level no longer interferes with
sensor/transmitter transmissions.
3.12.5 DIAGNOSING AND CLEARING
SYSTEM FAULTS
NOTE: The TPM System relearn procedure
must be performed before servicing the
system.
All Tire Pressure Monitoring System Faults are
specific to one location. If a
SENSOR FAILURE fault is detected, the location
will be displayed.
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 Tire Pressure Monitoring System symptoms
in the EVIC section.
16
BATTERY LOW ,
The appropriate sensor/