DTC C1A70: Power Steering Control System [10/2015 - ]: Procedure
WARNING: This page is about a different car, the 2018 Toyota Avalon, 2017 Toyota Avalon, and 2016 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR DTCs (POWER STEERING SYSTEM)
HINT:
Lane departure alert system DTC C1A70 may be stored due to a malfunction in the power steering system. Therefore it is necessary to check for and troubleshoot power steering system DTCs first.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Chassis / EMPS / Trouble Codes.
- Check for DTCs.
Refer to DTC CHECK / CLEAR [10/2015 - ]
Result
Result Proceed to Power steering system DTCs are not output A Power steering system DTCs are output B
Result:
B
GO TO POWER STEERING SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]
Result:
A
See step 2
- CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [10/2015 - ]
- Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the power switch on (IG) and wait 7 seconds or more.
- Check for DTCs.
Refer to DTC CHECK / CLEAR [10/2015 - ]
Result
Result Proceed to DTC C1A70 is not output A DTC C1A70 is output B
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]
Result:
B
REPLACE FORWARD RECOGNITION CAMERA. Refer to COMPONENTS [10/2015 - ]