DTC C1785: Steering Control ECU Communication Error [09/2014 - ]: Procedure

1. Check for DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - ] ).
   RESULT
   
   

   Result	Proceed to
   CAN DTC is not output	A
   CAN DTC is output	B

Result:  B

B 

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITHTROUBLESHOOTING) 

(See page. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )

Result:  A

A 

See step  2

1. Check for VGRS system malfunction DTCs (See page. Refer to DTC CHECK / CLEAR [09/2014 - ] ).
   RESULT
   
   

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Result:  A

A 

REPLACE ABSORBER CONTROL ECU 

(See page. Refer to REMOVAL [09/2014 - ] )

Result:  B

B 

GO TO VGRS SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) 

(See page. Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - ] )