DTC C1784: Steering Angle Sensor Communication Error [08/2016 - 03/2019]: Procedure

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2016 - 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 [09/2014 - 11/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019] 

Result: 

A 

See step  2

1. Check for steering angle sensor malfunction DTCs.

   Refer to DTC CHECK / CLEAR [09/2014 - 11/2017] , or refer to DTC CHECK / CLEAR [11/2017 - 03/2019]

   Chassis > ABS/VSC/TRC > 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] 

Result: 

B 

GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART). Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 11/2017]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2017 - 03/2019]