Toyota Tacoma (2015-2018) Service Manual: Rear Right Sensor Malfunction (C1AE9)

DESCRIPTION

The No. 1 ultrasonic sensor (rear corner sensor RH) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (rear corner sensor RH). If the No. 1 ultrasonic sensor (rear corner sensor RH) has an open circuit or other malfunction, it will not function normally.

CAUTION / NOTICE / HINT

NOTICE:

If DTCs are output after repairs, turn the ignition switch to ON and turn the back sonar or clearance sonar switch assembly on. Then clear the DTCs (See page ).

PROCEDURE

(a) Check for DTCs (See page ).

B

GO TO DTC (C1AED)

C

USE SIMULATION METHOD TO CHECK

A

(a) Replace the No. 1 ultrasonic sensor (rear corner sensor RH) with a known good one (See page ).

HINT:

All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.

NEXT

(a) Clear the DTCs (See page ).

(b) Check for DTCs (See page ).

OK

END (REAR CORNER SENSOR RH WAS DEFECTIVE)

NG

REPLACE CLEARANCE WARNING ECU ASSEMBLY