Dodge Caliber. Manual — part 64
C2208-AWD ECU INTERNAL
For a complete wiring diagram Refer to Section 8W
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CLUTCH-ELECTRONICALLY CONTROLLED-ELECTRICAL DIAGNOSTICS
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•
When Monitored:
With the ignition on.
•
Set Condition:
The All Wheel Drive (AWD) Module has detected a failure internal to the controller.
Possible Causes
(T312) REAR DIFFERENTIAL SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE
ALL WHEEL DRIVE (AWD) MODULE
1.
(T312) REAR DIFFERENTIAL SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off to the lock position.
Disconnect the AWD Control Module harness connector.
Measure the voltage of the (T312) Rear Differential Solenoid Control cir-
cuit in the AWD Module harness connector.
) Is there any voltage present?
Yes
>> Repair the short to voltage in the (T312) Rear Differential
Solenoid Control circuit.
Perform AWD Control Module VERIFICATION TEST. (Refer
to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY
CONTROLLED CLUTCH - STANDARD PROCEDURE)
No
>> Go To 2
2.
ALL WHEEL DRIVE MODULE
The AWD Module has detected an internal failure.
View repair
Repair
Replace the All Wheel Drive Module in accordance with the Service Information.
Perform the AWD VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONI-
CALLY CONTROLLED CLUTCH - STANDARD PROCEDURE) .
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CLUTCH-ELECTRONICALLY CONTROLLED-ELECTRICAL DIAGNOSTICS
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U0001-CAN C BUS
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater
than 3 seconds.
•
Set Condition:
The PCM loses communication over the CAN C Bus circuit. The circuit is continuously monitored. One Trip
fault.
Possible Causes
CAN C BUS OPEN OR SHORTED CONDITION
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
ALL WHEEL DRIVE (AWD) CONTROL MODULE
POWERTRAIN CONTROL MODULE (PCM)
TOTALLY INTEGRATED POWER MODULE (TIPM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING for diagnostic
procedures and for further possible causes.
Diagnostic Test
1.
ACTIVE DTC
Ignition on, engine not running.
With a scan tool, read TIPM DTCs.
Is the DTC active at this time?
Yes
>> Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING for diag-
nostic procedures and for further possible causes.
No
>> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
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CLUTCH-ELECTRONICALLY CONTROLLED-ELECTRICAL DIAGNOSTICS
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U0100-LOST COMMUNICATION WITH ECM/PCM (TIPM)
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
•
TIPM is configured correctly
•
Set Condition:
Bus messages not received from the ECM/PCM for approximately 2 to 5 seconds.
Possible Causes
CAN C+ OR CAN C– BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TIPM NOT CONFIGURED CORRECTLY
ECM/PCM POWER AND GROUND
ECM/PCM
TIPM
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 DTCs.
Is this DTC active?
Yes
>> Go To 2
No
>> Refer to the Stored Lost Communication test procedure. Refer to the table of contents in this section.
2.
CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
With the scan tool, read all active DTCs from all modules.
NOTE: Check for TIPM configuration, CAN C+ or C– hardware electrical, VIN Missing/Mismatch, battery or
ignition related DTCs.
Does the scan tool display any active DTCs to the conditions listed above?
Yes
>> Diagnose and repair the DTC. Refer to the Index for a complete list of the symptoms.
No
>> Go To 3
3.
VERIFY THAT THE ECM/PCM IS ACTIVE ON THE BUS
Ignition on, engine not running.
With the scan tool, select Network Diagnostics.
Verify that the PCM is active on the bus.
Is the PCM active on the bus?
Yes
>> Go To 4
No
>> Refer to the No Response test procedure. Refer to the table of contents in this section.
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