Dodge Caliber. Manual — part 235
U0126-LOST COMMUNICATION WITH STEERING ANGLE SENSOR (SAS)
For a complete wiring diagram Refer to Section 8W.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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•
When Monitored:
With the ignition on.
Battery voltage between 10 and 16 volts.
IOD fuse installed.
TIPM configured correctly.
•
Set Condition:
Bus messages not received from the SAS (steering angle sensor) for approximately 500ms.
Possible Causes
CAN C BUS CIRCUITS OPEN OR SHORTED
DTC’S RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
STEERING ANGLE SENSOR
STEERING ANGLE SENSOR POWER AND GROUND
TIPM NOT CONFIGURED CORRECTLY
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.
Turn the ignition on.
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 all active DTC’s from all CAN C Bus modules.
NOTE: Check for CAN 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 SAS IS ACTIVE ON THE BUS
With the scan tool, select ECU View.
Verify that the SAS is active on the bus.
Is the SAS 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
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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 SAS?
Yes
>> Replace/update the Steering Angle Sensor (internal to the clockspring) 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 this DTC in accordance with the service information
Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES - STANDARD PROCEDURE).
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 53
U0141–LOST COMMUNICATION WITH FRONT CONTROL MODULE (TIPM - TOTALLY
INTEGRATED POWER MODULE)
For a complete wiring diagram Refer to Section 8W.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
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