Toyota Tacoma (2015-2018) Service Manual: Invalid Data Received from Deceleration Sensor (C1442,C1443)
DESCRIPTION
The airbag sensor assembly has a built-in yaw rate and acceleration sensor.
The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1442 |
Invalid Data Received from Acceleration Sensor |
When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from acceleration sensor is ON continuously for 10 seconds or more. |
Acceleration sensor (Airbag sensor assembly) |
|
C1443 |
Invalid Data Received from Yaw Rate Sensor |
When voltage at terminal +BS is 9.5 to 17.4 V, sensor invalid information received from yaw rate sensor is ON continuously for 10 seconds or more. |
Yaw rate sensor (Airbag sensor assembly) |
CAUTION / NOTICE / HINT
NOTICE:
When replacing the yaw rate and acceleration sensor (airbag sensor assembly),
perform zero point calibration and store system information (See page
.gif)
).
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs (See page
).
(b) Turn the ignition switch off.
(c) Start the engine and idle it for 60 seconds, and then stop the engine.
(d) Check if the same DTC is recorded (See page
).
|
Result |
Proceed to |
|---|---|
|
DTCs C1442 and/or C1443 are output |
A |
|
DTCs C1442 and C1443 are not output |
B |
| A | .gif) |
REPLACE AIRBAG SENSOR ASSEMBLY |
| B | |
USE SIMULATION METHOD TO CHECK |
Open in ABS Solenoid Relay Circuit (C146E,C146F)
DESCRIPTION
The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid.
The solenoid relay is turned on 1.5 seconds after the ignition switch is turned
ON, and is turned off if an ...
Acceleration Sensor Stuck Malfunction (C1232,C1243,C1245)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives signals from the yaw
rate and acceleration sensor (airbag sensor assembly) via the CAN communication
system.
The airbag sensor ...
Other materials:
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 ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the Techstream to read the Data List allows t ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
When removing the front fender wheel opening moulding or quarter panel
wheel opening moulding, heat the vehicle body and front fender wheel ope ...
