B2237

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: B2237: Rear Left Sensor Malfunction
B2237 - Rear Left Sensor Malfunction

DESCRIPTION

The No. 1 ultrasonic sensor (rear left sensor) is installed on the rear bumper.

The clearance warning ECU detects obstacles based on signals received from the rear left sensor. If the rear left sensor circuit has an open, short or other malfunction, it will not function normally.









WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NO. 1 ULTRASONIC SENSOR

(a) Remove the No. 1 ultrasonic sensor.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPLACE NO. 1 ULTRASONIC SENSOR (REAR LEFT SENSOR) Removal
OK -- Continue to next step.

2. CHECK WIRE HARNESS (CLEARANCE WARNING ECU - ULTRASONIC SENSOR)

(a) Disconnect the Q37 clearance warning ECU connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Result:





B -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Intuitive Parking Assist System

C -- REPLACE CLEARANCE WARNING ECU Removal

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR