DTC C1785: Steering Control ECU Communication Error [09/2014 - ]: Procedure
- CHECK FOR DTC (CAN COMMUNICATION SYSTEM)
- Check for DTCs.
Refer to DTC CHECK / CLEAR [09/2014 - ]
Chassis > Air suspension > Trouble Codes
Result
Result Proceed to CAN DTC is not output A CAN DTC is 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 - 10/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ]
Result:
A
See step 2
- Check for DTCs.
- CHECK FOR DTC (VGRS SYSTEM)
- Check for VGRS system malfunction DTCs.
Refer to DTC CHECK / CLEAR [09/2014 - 09/2020] , or refer to DTC CHECK / CLEAR [09/2020 - ]
Chassis > VGRS > Trouble Codes
Result
Result Proceed to DTC is not output A DTC is output B
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 11/2017] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 10/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 11/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2019 - 09/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2020 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]
Result:
B
GO TO VGRS SYSTEM (DIAGNOSTIC TROUBLE CODE CHART). Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2014 - 11/2017] , or refer to DIAGNOSTIC TROUBLE CODE CHART [11/2017 - 09/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - ]
- Check for VGRS system malfunction DTCs.