U1106-CAN C SIGNAL MISSING





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the ignition on.

  • Set Condition:

    The TIPM detects a short in either CAN C Bus circuit.


Possible Causes
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND
  
(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
  
(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT
  
ANTILOCK BRAKE MODULE
  
POWERTRAIN or ENGINE CONTROL MODULE
  
TRANSMISSION CONTROL MODULE
  
ALL WHEEL DRIVE CONTROL MODULE
  
STEERING CONTROL MODULE
  
TOTALLY INTEGRATED POWER MODULE
  



Diagnostic Test

1.TEST FOR INTERMITTENT CONDITION

NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.








Does the scan tool display U1106–CAN C SIGNAL MISSING as active?

Yes
  • Go To 2


No
  • The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

2.ANTILOCK BRAKE MODULE — INTERNAL SHORT









Does the scan tool display U1106–CAN C SIGNAL MISSING as active?

Yes
  • Go To 3


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Antilock Brake Module in accordance with the service information.
  • Perform the ABS VERIFICATION TEST — VER 1.

3.POWERTRAIN OR ENGINE CONTROL MODULE — INTERNAL SHORT









Does the scan tool display U1106–CAN C SIGNAL MISSING as active?

Yes
  • Go To 4


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Powertrain or Engine Control Module in accordance with the service information.
  • Perform the appropriate POWERTRAIN VERIFICATION TEST.

4.TRANSMISSION CONTROL MODULE — INTERNAL SHORT









Does the scan tool display U1106–CAN C SIGNAL MISSING as active?

Yes
  • Go To 5


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Transmission Control Module in accordance with the service information.
  • Perform the appropriate TRANSMISSION VERIFICATION TEST.

5.ALL WHEEL DRIVE CONTROL (AWD) MODULE — INTERNAL SHORT









Does the scan tool display U0001–CAN C BUS as active?

Yes
  • Go To 6


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the All Wheel Drive Control (AWD) Module in accordance with the service information.
  • Perform the appropriate VERIFICATION TEST.

6.STEERING CONTROL MODULE (SAS) — INTERNAL SHORT









Does the scan tool display U1106–CAN C SIGNAL MISSING as active?

Yes
  • Go To 7


No

7.(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE








Is there any voltage present?

Yes


No
  • Go To 8

8.(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE





Is there any voltage present?

Yes


No
  • Go To 9

9.(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND






Is any resistance present?

Yes


No

10.(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND





Is any resistance present?

Yes


No

11.(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT





Is any resistance present?

Yes


No