Toyota Tacoma manuals

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 PROCEDURE PROCEDURE ).

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs (See page ). (b) Turn the ignition switch off. ).

(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 Result ).

Result

Result

Proceed to

DTCs C1442 and/or C1443 are output

A

DTCs C1442 and C1443 are not output

B

A

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:

Ambient Temperature Sensor
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT AMBIENT TEMPERATURE SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard resistance: Tester Connection Condition ...

Diagnosis System
DIAGNOSIS SYSTEM 1. DESCRIPTION The ECM stores DTCs (Diagnostic Trouble Codes) when trouble occurs on the vehicle. The diagnosis system allows reading of DTCs stored in the ECM when a the Techstream is connected to the DLC3 (Data Link Connector 3). If the CRUISE MAIN indicator light does not ...

Oil Level Sensor
Components COMPONENTS ILLUSTRATION ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT ENGINE OIL LEVEL SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condi ...

В© 2011-2019 Copyright www.ttguide.net