DTC B2311: Rear Radar Detect TCM

DTC detecting condition: 

Automatic transmission fails.

Trouble symptom: 

• All functions of BSD/RCTA stop.
• Fail icon is displayed in the combination meter LCD display.
• Failure-related notification is displayed for approx. two seconds on LCD display in the combination meter.
• AT OIL TEMP light blinks in the combination meter.
  NOTE: Check and replace the side that displayed the DTC.

1. CHECK TRANSMISSION  .

   Check the transmission. Ref. to TRANSMISSION (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

   Is the check result OK?

   Yes  : Go to  2 .

   No  : Perform the inspection according to the diagnosis of the transmission.

2. CHECK BSD/RCTA  .
   1. Restore the vehicle to its original state.
   2. Perform the inspection mode Ref. to BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT (DIAGNOSTICS)>INSPECTION MODE .

      Is DTC B2311 displayed? (Current malfunction)

      Yes  : Replace the radar sensor. Ref. to BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT>RADAR SENSOR .

      No  : Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

      NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.