Toyota 4Runner: Invalid Data Received from Deceleration Sensor (C1442,C1443)

Toyota 4Runner Service Manual / Brake / Brake Control / Dynamic Control Systems / Vehicle Stability Control System(for Hydraulic Brake Booster) / Invalid Data Received from Deceleration Sensor (C1442,C1443)

DESCRIPTION

The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.

DTC Code	DTC Detection Condition	Trouble Area
C1442	An invalid data signal is transmitted continuously from the acceleration sensor for 10 seconds or more.	Yaw rate and acceleration sensor
C1443	An invalid data signal is transmitted continuously from the yaw rate and acceleration sensor for 10 seconds or more.	Yaw rate and acceleration sensor

CAUTION / NOTICE / HINT

NOTICE:

When replacing the yaw rate and acceleration sensor, perform calibration (See page ).

PROCEDURE

CHECK DTC

(a) Clear the DTCs (See page ).

(b) Turn the ignition switch off.

(d) Check if the same DTC is output (See page
).

Result

Result	Proceed to
DTCs C1442 and/or C1443 are output	A
DTCs C1442 and C1443 are not output	B

REPLACE YAW RATE AND ACCELERATION SENSOR

USE SIMULATION METHOD TO CHECK

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