U110A-LOST COMMUNICATION WITH SCCM - CAN C (STEERING ANGLE SENSOR)





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:

    Bus messages not received from the SAS (steering angle sensor) for approximately 500ms.


Possible Causes
  
CAN C BUS CIRCUITS OPEN OR SHORTED
  
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
  
STEERING ANGLE SENSOR
  
STEERING ANGLE SENSOR POWER AND GROUND
  
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.





Is this DTC active?

Yes
  • Go To 2


No

2.CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS


NOTE: Check for CAN 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 Table of Contents for a complete list of the symptoms.


No
  • Go To 3

3.VERIFY THAT THE SAS IS ACTIVE ON THE BUS




Is the SAS active on the bus?

Yes
  • Go To 4


No

4.CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS



Is there more than one module with active DTCs “Logged Against” the SAS?

Yes


No