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)

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

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:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT STEERING PAD (for Vehicle not Involved in Collision) (a) Perform a diagnostic system check (See page ). (b) With the steering pad installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the steering pad ...

If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s battery is discharged. You can call your Toyota dealer or qualified repair shop. If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt battery, you can jump start your Toyota following the ...

Crawl Indicator Light Remains ON
DESCRIPTION When CRAWL starts after operating the CRAWL switch (drive monitor switch), the CRAWL indicator light turns on. While CRAWL is in the process of stopping, the CRAWL indicator light begins blinking. When CRAWL totally stops, the CRAWL indicator light turns off. WIRING DIAGRAM CA ...