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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Park Assist / Monitoring) >> Intuitive Parking Assist System >> DTC B2238 Rear Left Center Sensor Malfunction >> Description

DTC B2238 Rear Left Center Sensor Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

The No. 2 ultrasonic sensor (rear left center sensor) is installed on the rear bumper.

The clearance warning ECU detects obstacles based on signals received from the rear left center sensor.

If the rear left center sensor's circuit has an open, short or other malfunction, it will not function normally

Fig 1: Identifying Ultrasonic Sensors
G05753802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
B2238 Malfunction of No 2 ultrasonic sensor (Rear left center sensor)
  • No 2 ultrasonic sensor (Rear left center sensor)
  • Harness or connector between clearance warning ECU and No 2 ultrasonic sensor (Rear left center sensor)
  • Clearance warning ECU