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

Toyota Tacoma (2015-2018) Service Manual / Park Assist / Monitoring / Intuitive Parking Assist System / 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.

DTC No.	DTC Detection Condition	Trouble Area
C1AE9	A malfunction of the No. 1 ultrasonic sensor (rear corner sensor RH).	No. 1 ultrasonic sensor (rear corner sensor RH) Clearance warning ECU assembly

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 ).

PROCEDURE

1.	CHECK DTC OUTPUT

(a) Check for DTCs (See page Result ).

Result

Result	Proceed to
Only DTC C1AE9 is output	A
DTC C1AE9 and C1AED are output	B
No DTCs are output	C

GO TO DTC (C1AED)

USE SIMULATION METHOD TO CHECK

2.	REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)

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

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.

3.	CHECK DTC OUTPUT

(a) Clear the DTCs (See page (b) Check for DTCs (See page ). ).

(b) Check for DTCs (See page Result ).

Result

Result	Proceed to
No DTCs are output	OK
DTC C1AE9 is output	NG

END (REAR CORNER SENSOR RH WAS DEFECTIVE)

REPLACE CLEARANCE WARNING ECU ASSEMBLY

Rear Right Center Sensor Malfunction (C1AE8)

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Rear Left Sensor Malfunction (C1AE6)

DESCRIPTION The No. 1 ultrasonic sensor (rear corner sensor LH) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (rear corner ...

Other materials:

Removal
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Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for both the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. PRECAUTION NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable f ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...