Communications

U0126-LOST COMMUNICATION WITH SAS (STEERING ANGLE SENSOR)






For a complete wiring diagram refer to Diagrams/Electrical.

- 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 SAS (Steering Angle Sensor) for approximately 2 to 5 seconds.






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. Stored Lost Communication DTCs
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

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 B 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.

- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3

3. VERIFY THAT THE SAS IS ACTIVE ON THE BUS

Turn the ignition on.

With the scan tool, select Network Diagnostics.

Verify that the SAS is active on the bus.

Is the SAS active on the bus?

Yes

- Go To 4

No

- Refer to Manufacturer Trouble Codes for No Response diagnostic procedures.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS

With the scan tool, select Network Diagnostics.

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

Yes

- Replace/update the Steering Angle Sensor (internal to the clockspring).
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace/update the module that set this DTC.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test