DTC C1784: Steering Angle Sensor Communication Error [03/2019 - ]: Procedure

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2016 - 01/2023] , or refer to DTC CHECK / CLEAR [01/2023 - ]

   Chassis > Air suspension > Trouble Codes 

   Result

   Result	Proceed to
   CAN DTCs are not output	A
   CAN DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 01/2023]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [01/2023 - ] 

Result: 

A 

See step  2

1. Check for steering angle sensor malfunction DTCs.

   Refer to DTC CHECK / CLEAR [03/2019 - 01/2023] , or refer to DTC CHECK / CLEAR [01/2023 - ]

   Chassis > Brake > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

A 

REPLACE ABSORBER CONTROL ECU. Refer to  REMOVAL [08/2016 - 01/2023]  , or refer to  REMOVAL [01/2023 - ] 

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART). Refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2019 - 01/2023]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [01/2023 - ]