Dodge Caliber. Manual — part 239
•
When Monitored:
With the ignition on.
Battery voltage between 10 and 16 volts.
IOD fuse installed.
TIPM is configured correctly.
•
Set Condition:
Bus messages not received from the Intrusion Transceiver Control Module (ITM) for approximately 2 to 5 sec-
onds.
Possible Causes
CAN B BUS CIRCUITS OPEN OR SHORTED
DTC’S RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TIPM NOT CONFIGURED CORRECTLY
IOD FUSE NOT INSTALLED
INTRUSION TRANSCEIVER CONTROL MODULE POWER AND GROUND
INTRUSION TRANSCEIVER CONTROL MODULE
MODULE THAT SET THIS DTC
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.
With the scan tool, read active DTC’s.
Is this DTC active?
Yes
>> Go To 2
No
>> Perform the Stored Lost Communication test procedure. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES - DIAGNOSIS AND TESTING).
2.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTC’S
With the scan tool, read active DTC’s from all modules.
NOTE: Check for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or igni-
tion related DTC’s.
Does the scan tool display any active DTC’s to the conditions listed above?
Yes
>> Diagnose and repair the DTC. Refer to the Table of Contents for a complete list of the symptoms.
No
>> Go To 3
3.
VERIFY THAT THE ITM IS ACTIVE ON THE BUS
Turn the ignition on.
With the scan tool, select ECU View.
Verify that the ITM is active on the bus.
Is the ITM active on the bus?
Yes
>> Go To 4
No
>> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for No
Response diagnostic procedures.
PM
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 67
4.
CHECK FOR ADDITIONAL COMMUNICATION RELATED DTC’S
With the scan tool, select Network View and select Advanced.
Is there more than one module with active DTC’s “Logged Against” the ITM?
Yes
>> Replace/update the Intrusion Transceiver Control Module in accordance with the service information.
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE).
No
>> Replace/update the module that set the DTC in accordance with the service information
Perform the appropriate VERIFICATION TEST.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
PM
U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE
(SKREEM/WCM)
For a complete wiring diagram Refer to Section 8W.
PM
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 69
•
When Monitored:
With the ignition on.
Battery voltage between 10 and 16 volts.
•
Set Condition:
Bus messages not received from the Sentry Key Remote Entry Module (WCM) for approximately 2 to 5 sec-
onds.
Possible Causes
CAN B BUS CIRCUITS OPEN OR SHORTED
DTC’S RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
SENTRY KEY REMOTE ENTRY MODULE POWER AND GROUND
SENTRY KEY REMOTE ENTRY MODULE
MODULE THAT SET THIS DTC
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.
With the scan tool, read active DTC’s.
Is this DTC active?
Yes
>> Go To 2
No
>> Perform the Stored Lost Communication test procedure. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES - DIAGNOSIS AND TESTING).
2.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTC’S
With the scan tool, read active DTC’s from all modules.
NOTE: Check for CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTC’s.
Does the scan tool display any active DTC’s to the conditions listed above?
Yes
>> Diagnose and repair the DTC. Refer to the Table of Contents for a complete list of the symptoms.
No
>> Go To 3
3.
VERIFY THAT THE WCM IS ACTIVE ON THE BUS
Turn the ignition on.
With the scan tool, select ECU View.
Verify that the WCM is active on the bus.
Is the WCM active on the bus?
Yes
>> Go To 4
No
>> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for No
Response diagnostic procedures.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
PM
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