Toyota RAV4 manuals

Toyota Sienna Service Manual: Zero Point Calibration of Yaw Rate Sensor Undone

Zero Point Calibration of Yaw Rate Sensor Undone

DESCRIPTION

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

Yaw rate sensor has the built-in deceleration sensor.

If there is trouble in the bus lines between the yaw rate and deceleration sensor and CAN communication system, the DTC U0123/62 (yaw rate sensor communication trouble) and U0124/95 (deceleration sensor communication trouble) are output.

The DTC is also output when the calibration has not been completed.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT: When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied with C1210/36 or C1336/39, inspect and repair the trouble areas indicated by U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 first.

1 PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR

(a) Perform the zero point calibration of the yaw rate and deceleration sensor (See page BC-70).

2 RECONFIRM DTC

(a) Clear the DTCs (See page BC-82).

(b) Turn the ignition switch to the ON position.

(c) Are the same DTCs recorded (See page BC-82).

Result

3 CHECK YAW RATE AND DECELERATION SENSOR INSTALLATION

(a) Check that the yaw rate and deceleration sensor has been installed properly (See page BC-197).

NOTICE: When replacing the yaw rate and deceleration sensor, perform zero point calibration (See page BC- 70).

REPLACE YAW RATE AND DECELERATION SENSOR

ECM Communication Circuit Malfunction
DTC C1203/53 ECM Communication Circuit Malfunction DESCRIPTION The circuit is used to send TRAC and VSC control information from the skid control ECU to the ECM, and engine control information fr ...

SM Solenoid Circuit
DTC C1225/25 SM Solenoid Circuit DESCRIPTION This solenoid turns on when receiving signals the ECU and controls the pressure acting on the wheel cylinders to control the braking force. WIRIN ...

Other materials:

System description
1. DESCRIPTION OF SYSTEM (a) A tire pressure warning valve and transmitter is equipped with a tire pressure sensor and a transmitter and is installed in a tire wheel assembly. The sensor measures the tire pressure. The measured value and transmitter ID are transmitted to the tire pressure wa ...

Diagnosis Circuit
DESCRIPTION DTC output mode is set by connecting terminals TC and CG of the DLC3. DTCs are displayed by blinking the SRS warning light. HINT:  When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is ...

Inspection
1. INSPECT CRANKSHAFT POSITION SENSOR  Using an ohmmeter, measure the resistance between the terminals. Standard resistance NOTICE:  "Cold" and "Hot" mean the temperature of the coils themselves. "Cold" is from -10C (14F) to 50C (122F ...

В© 2011-2021 Copyright www.tsienna.net