Toyota Camry (XV70): Software Incompatibility with Brake System Control Module Not Programmed (U031851)

DESCRIPTION

If the forward recognition camera cannot verify the vehicle information sent from the skid control ECU (brake actuator assembly), the forward recognition camera stores DTC U031851.

CAUTION / NOTICE / HINT

NOTICE:

• When replacing the forward recognition camera, replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.
• When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.

  HINT:

  Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.

  One Time Recognition: Click here

  Sequential Recognition: Click here

  Driving Adjustment: Click here

PROCEDURE

(a) Replace the forward recognition camera with a new one.

Click here

(b) Perform forward recognition camera adjustment.

HINT:

Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.

One Time Recognition: Click here

Sequential Recognition: Click here

Driving Adjustment: Click here

NEXT

(a) Clear the DTCs.

NEXT

END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

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