Dodge Caliber. Manual — part 1303
7.
(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)
8.
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)
9.
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)
PM
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
22 - 39
U1116–LOST COMMUNICATION WITH LEFT REAR TIRE PRESSURE TRIGGER
MODULE
22 - 40
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
PM
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
With the ignition on
•
Battery voltage between 10 and 16 volts
•
IOD fuse installed
•
Set Condition:
If the WCM fails to receive bus messages from the Tire pressure trigger module for two consecutive counts of
trigger module not responding to a communication check.
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
(F202) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR HIGH RESISTANCE
(Z965) GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE
(D508) COM-LIN TIRE PRESSURE MONITOR LAN CIRCUIT OPEN
TIRE PRESSURE TRIGGER MODULE POWER AND GROUND
WCM
Diagnostic Test
1.
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 2
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 - 41
2.
(F202) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN OR HIGH RESISTANCE
Turn the ignition on.
Using a 12–volt test light connect to ground, check the (F202) 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 3
No
>> Repair the (F202) Fused Ignition Switch Output (Run) circuit
for an open circuit or high resistance.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS - DIAGNOSIS AND TESTING)
3.
(Z904) GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE
Using a 12–volt test light connect to 12 volts, check each of the (Z904)
Ground circuit(s).
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 4
No
>> Repair the (Z904) Ground circuit(s) for an open circuit or
high resistance.
Perform TPM VERIFICATION TEST. (Refer to 22 - TIRES/
WHEELS - DIAGNOSIS AND TESTING)
22 - 42
TIRES/WHEELS - ELECTRICAL DIAGNOSIS
PM
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