2008 JEEP COMPASS sensor

5. Once you repair or replace the original road tire, and
reinstall it on the vehicle in place of the compact spare
tire, the TPMS will update automatically and the TPM
Telltale Light will turn OFF, as long as no tire pressure is
below the low-pressure warning limit in any of the four
active road tires. The vehicle may need to be driven for
up to 10 minutes above 15 mph (25 km/h) in order for the
TPMS to receive this information.
Premium System ± If Equipped
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the Receiver Module.
NOTE:It is particularly important, for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.The TPMS consists of the following components:
²Receiver Module
²4 Tire Pressure Monitoring Sensors
²3 Trigger Modules (mounted in three of the four wheel
wells)
²Various Tire Pressure Monitoring System Messages,
which display in the Electronic Vehicle Information
Center (EVIC)
²Yellow Tire Pressure Monitoring Telltale Light
Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring Telltale Lamp will illumi-
nate in the instrument cluster, and an audible chime will
be activated when one or more of the four active road tire
pressures are low. The audible chime will sound once
every ignition cycle for each condition that it detects. In
STARTING AND OPERATING 271
5

addition, the Electronic Vehicle Information Center
(EVIC) will display a graphic of the pressure value(s)
with the low tire(s) flashing.
Should a low tire condition occur on any of the four
active road tire(s), you should stop as soon as possible,
and inflate the low tire(s) that is flashing on the graphicdisplay to the vehicle's recommended cold placard pres-
sure value. The system will automatically update, the
graphic display of the pressure value(s) will stop flash-
ing, and the Tire Pressure Monitoring Lamp will extin-
guish once the updated tire pressure(s) have been re-
ceived. The vehicle may need to be driven for up to 10
minutes above 15 mph (25 kph) to receive this informa-
tion.
Check TPM System Message
The Tire Pressure Monitoring Telltale Lamp will flash on
and off for 75 seconds, and remain on solid when a
system fault is detected. The system fault will also sound
a chime. The EVIC will display a ªCHECK TPM SYS-
TEMº message for 3 seconds. This text message is then
followed by a graphic display, with ª- -ª in place of the
pressure value(s) indicating which Tire Pressure Moni-
toring Sensor(s) is not being received.
Low Tire Pressure Display
272 STARTING AND OPERATING

If the ignition key is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault
no longer exists, the Tire Pressure Monitoring Telltale
Light will no longer flash, the9CHECK TPM SYSTEM9text message will not be present, and a pressure value
will be displayed instead of dashes. A system fault can
occur by any of the following scenarios:
1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the TPM
sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
NOTE:Your vehicle is equipped with a compact spare
wheel and tire assembly.
Check TPM System Display
STARTING AND OPERATING 273
5

1. The compact spare tire does not have a tire pressure
monitoring sensor. Therefore, the TPMS will not monitor
the tire pressure in the compact spare tire.
2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition key cycle, a chime will
sound and the TPM Telltale Light will still turn ON due
to the low tire.
3. However, after driving the vehicle for up to 10 min-
utes above 15 mph (25 km/h), the TPM Telltale Light will
flash on and off for 75 seconds and then remain on solid.
4. For each subsequent ignition key cycle, a chime will
sound and the TPM Telltale Light will flash on and off for
75 seconds and then remain on solid.
5. Once you repair or replace the original road tire, and
reinstall it on the vehicle in place of the compact spare
tire, the TPMS will update automatically and the TPMTelltale Light will turn OFF, as long as no tire pressure is
below the low-pressure warning limit in any of the four
active road tires. The vehicle may need to be driven for
up to 10 minutes above 15 mph (25 km/h) in order for the
TPMS to receive this information.
General Information
This device complies with part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
²This device may not cause harmful interference.
²This device must accept any interference received,
including interference that may cause undesired op-
eration.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
274 STARTING AND OPERATING

Cavity Cartridge
FuseMini
FuseDescription
14 10 Amp
RedIOD CCN/ Interior
Lighting
15 40 Amp
GreenRAD Fan Relay Bat-
tery Feed
16 15 Amp
Lt. BlueIGN Run/Acc Cigar
Ltr/Sunroof
17 10 Amp
RedIOD Feed Mod-Wcm
18 40 Amp
GreenASD Relay Contact
PWR Feed
19 20 Amp
YellowPWR Amp 1 & Amp
2 Feed
20 15 Amp
Lt. BlueIOD Feed Radio
21 10 Amp
RedIOD Feed Intrus
Mod/Siren
22 10 Amp
RedIGN RUN Heat/AC/
Compass SensorCavity Cartridge
FuseMini
FuseDescription
23 15 Amp
Lt. BlueENG ASD Relay Feed
3
24 15 Amp
Lt. BluePower Sunroof Feed
25 10 Amp
RedHeated Mirror
26 15 Amp
Lt. BlueENG ASD Relay Feed
2
27 10 Amp
RedIGN RUN Only ORC
Feed
28 10 Amp
RedIGN RUN ORC/OCM
Feed
29 Hot Car (No Fuse Re-
quired)
30 20 Amp
YellowHeated Seats
31 10 Amp
RedHeadlamp Washer
Relay Control
348 MAINTAINING YOUR VEHICLE