PRE-COLLISION SYSTEM(for Stereo Camera Type), Diagnostic DTC:U031951, U031957

DTC Code DTC Name
U031951 Software Incompatibility with Steering Effort Control Module Not Programmed
U031957 Software Incompatibility with Steering Effort Control Module Invalid/Incompatible Software Component

DESCRIPTION

Driving support ECU assembly receives the VGRS system information from the VGRS ECU (front steering control ECU) via CAN communication line.

If the driving support ECU assembly can not store the VGRS system information, DTC U031951 is stored.

If the VGRS system information stored in the driving support ECU assembly is different from that stored in the VGRS ECU (front steering control ECU), DTC U031957 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
U031951 Software Incompatibility with Steering Effort Control Module Not Programmed With 3 seconds elapsed after the power switch is on (IG), the vehicle information sent from VGRS ECU (front steering control ECU) remains undefined.

  • Driving support ECU assembly

  • VGRS ECU (front steering control ECU)

 Driving support ECU assembly (Driving Support Computer)
U031957 Software Incompatibility with Steering Effort Control Module Invalid/Incompatible Software Component With 3 seconds elapsed after the power switch is on (IG), the stored value for the vehicle information in the object recognition camera unmatches the received value from VGRS ECU (front steering control ECU).

  • Driving support ECU assembly

  • VGRS ECU (front steering control ECU)

 Driving support ECU assembly (Driving Support Computer)

PROCEDURE


  1. REPLACE VGRS ECU (FRONT STEERING CONTROL ECU)


    1. Replace the VGRS ECU (front steering control ECU).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END