Toyota Tacoma (2015-2018) Service Manual: Rear Left Center Sensor Malfunction (C1AE7)
DESCRIPTION
The No. 1 ultrasonic sensor (rear center sensor LH) is installed on the rear bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (rear center sensor LH). If the No. 1 ultrasonic sensor (rear center sensor LH) has an open circuit or other malfunction, it will not function normally.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1AE7 |
A malfunction of the No. 1 ultrasonic sensor (rear center sensor LH). |
|
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
.gif)
).
PROCEDURE
|
1. |
CHECK DTC OUTPUT |
(a) Check for DTCs (See page ).
|
Result |
Proceed to |
|---|---|
|
Only DTC C1AE7 is output |
A |
|
DTC C1AE7 and C1AED are output |
B |
|
No DTCs are output |
C |
| B | .gif) |
GO TO DTC (C1AED) |
| C | |
USE SIMULATION METHOD TO CHECK |
|
.gif)
|
2. |
REPLACE NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR LH) |
(a) Replace the No. 1 ultrasonic sensor (rear center sensor LH) 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.
|
|
3. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
|
Result |
Proceed to |
|---|---|
|
No DTCs are output |
OK |
|
DTC C1AE7 is output |
NG |
| OK | |
END (REAR CENTER SENSOR LH WAS DEFECTIVE) |
| NG | |
REPLACE CLEARANCE WARNING ECU ASSEMBLY |
Rear Sensor Communication Malfunction (C1AED)
DESCRIPTION
This DTC is stored when there is an open or short circuit in the communication
line between the rear sensors and the ECU, or when there is a malfunction in a rear
sensor.
...
Clearance Sonar Main Switch Circuit
DESCRIPTION
The back sonar or clearance sonar switch assembly is installed at the base of
the driver side of the instrument panel.
When the back sonar or clearance sonar switch assembly is turned ...
Other materials:
Installation
INSTALLATION
PROCEDURE
1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY
(a) Engage the claw to install the windshield wiper switch assembly.
(b) Connect the 2 connectors.
2. INSTALL UPPER STEERING COLUMN COVER
3. INSTALL LOWER STEERING COLUMN COVER
...
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 symptom by
check ...
Components
COMPONENTS
ILLUSTRATION
*A
w/o Navigation System
*B
w/ Navigation System
*C
for Double Cab
*D
for Acces Cab
*E
for 4WD
-
-
*1
...
