Dodge Caliber. Manual — part 1301
C151D-TIRE PRESSURE SENSOR LOCATION UNDERETEMIND
For a complete wiring diagram Refer to Section 8W.
Theory of Operation
The vehicle sensor locate process occurs after the vehicle sits at zero speed for more than 19 min. The tire pres-
sure monitor system will determin the sensor positios while driving at speeds above 15 MPH (24 Km/h). This pro-
cess can take up to 10 min to determin sensor positions.
•
When Monitored:
During vehicle sensor locate process.
•
Set Condition:
Must fail vehicle sensor locate process 3 times in a row.
Possible Causes
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT SHORT TO VOLTAGE
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT SHORT TO GROUND
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN OR HIGH RESISTANCE
FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR HIGH RESISTANCE
GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE
(D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN
TIRE PRESSURE TRIGGER MODULE POWER AND GROUND
TPM SENSOR
WCM
Diagnostic Test
1.
OTHER DTC’S SET
Repair all other DTC’s first.
Is this DTC still active after all other DTC’s repaired?
Yes
>> Go To 2
No
>> Test Complete.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/WHEELS - DIAGNOSIS AND TESTING)
2.
VERIFY DTC IS ACTIVE
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
Turn the ignition on.
With the scan tool, read and record WCM DTCs.
With the scan tool, erase WCM DTCs.
Cycle the ignition switch.
With the scan tool, read WCM DTCs.
Does this DTC reset?
Yes
>> Go To 3
No
>> Perform the Stored Lost Communication test procedure. Refer to the table of contents in this section.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING).
Perform BODY VERIFICATION TEST. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES
- STANDARD PROCEDURE).
PM
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
22 - 31
3.
(D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN
Turn the ignition off.
Disconnect the Tire Pressure Trigger Module.
Disconnect the WCM.
With an ohmmeter measure the resistance of the (D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT.
Is the resistance below 5 Ohms?
Yes
>> Go To 4
No
>> Repair or replace the open circuit.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/WHEELS/TIRE PRESSURE MONITORING -
STANDARD PROCEDURE)
4.
FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR HIGH RESISTANCE
Turn the ignition off.
Disconnect the Tire Pressure Transponder harness connector.
Disconnect the Sentry Key Remote Entry Module harness connector.
Turn the ignition on.
Using a 12–volt test light connect to ground, check the Fused Ignition
Switch Output (Run) circuit.
NOTE: The test light should be illuminated and bright. Compare
the brightness to that of a direct connection to the battery.
Is the test light illuminated and bright?
Yes
>> Go to 5
No
>> Repair the Fused Ignition Switch Output (Run) circuit for an
open circuit or high resistance.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING - STANDARD
PROCEDURE)
5.
GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE
Using a 12-volt test light connect to battery voltage, probe each of the
Ground circuit(s).
NOTE: The test light should be illuminated and bright. Compare
the brightness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go to 6
No
>> Repair the Ground circuit(s) for an open circuit or high
resistance.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING - STANDARD
PROCEDURE)
22 - 32
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
PM
6.
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT SHORT TO VOLTAGE
Turn the ignition on.
Measure the voltage of the (D508) COM - LIN Tire Pressure Monitor
LAN circuit.
Is there any voltage present?
Yes
>> Repair the (D508) COM - LIN Tire Pressure Monitor LAN
circuit for a short to voltage.
No
>> Go to 7
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING - STANDARD
PROCEDURE)
7.
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT SHORT TO GROUND
Turn the ignition off.
Measure the resistance between ground and the (D508) COM - LIN Tire
Pressure Monitor LAN circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (D508) COM - LIN Tire Pressure Monitor LAN
circuit for a short to ground.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING - STANDARD
PROCEDURE)
No
>> Go to 8
PM
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
22 - 33
8.
(D508) COM - LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN OR HIGH RESISTANCE
Use a jumper wire with one end connected to ground and the other to
the (D508) COM - LIN Tire Pressure Monitor LAN circuit in the Front
Left Pressure Tire Transponder harness connector.
Using a 12-Volt test light connected to battery voltage, probe the (D508)
COM - LIN Tire Pressure Monitor LAN circuit in the TPM harness con-
nector.
NOTE: The test light should be illuminated and bright. Compared
the brightness to that of a direct connection to the battery.
Does the test light illuminate bright?
Yes
>> Go to 9
No
>> Repair the (D508) COM - LIN Tire Pressure Monitor LAN
circuit for an open circuit or high resistance.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS/TIRE PRESSURE MONITORING - STANDARD
PROCEDURE)
9.
POWER AND GROUND CIRCUIT OPEN
Turn the ignition on.
With a voltmeter measure the voltage between the power and ground circuit at the Trigger Module.
Is the voltage at least the same as battery voltage?
Yes
>> Go To 10
No
>> Repair the open circuit.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/WHEELS/TIRE PRESSURE MONITORING -
STANDARD PROCEDURE)
10.
CHECK FOR ADDITIONAL TRIGGER MODULE COMMUNICATION RELATED DTCs
With the scan tool, select Network View and select Advanced.
Is there more than one module with active DTCs “Logged Against” the WCM?
Yes
>> Replace/update the WCM in accordance with the service information.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/WHEELS/TIRE PRESSURE MONITORING -
STANDARD PROCEDURE)
No
>> Replace the Tire pressure trigger Module in accordance with the service information.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/WHEELS/TIRE PRESSURE MONITORING -
STANDARD PROCEDURE)
22 - 34
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
PM
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