C1381

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0371/71: Yaw Rate Sensor (Test Mode DTC)

DTC C0371/71 - Yaw Rate Sensor (Test Mode DTC)

DTC C1232/32 - Stuck in Deceleration Sensor

DTC C1234/34 - Yaw Rate Sensor Malfunction

DTC C1243/43 - Deceleration Sensor Stuck Malfunction

DTC C1244/44 - Open or Short in Deceleration Sensor Circuit

DTC C1245/45 - Deceleration Sensor Output Malfunction

DTC C1279/79 - Deceleration Sensor Output Voltage Malfunction (Test Mode DTC)

DTC C1381/97 - Acceleration Sensor Power Supply Voltage Malfunction

DESCRIPTION

The skid control ECU receives signals from the yaw rate sensor and deceleration sensor via the CAN communication system.
The deceleration sensor is built into the yaw rate sensor.
If there is trouble in the bus lines between the yaw rate sensor and deceleration sensor and the CAN communication system, DTC U0123/62 (yaw rate sensor communication trouble) and U0124/95 (deceleration sensor communication trouble) are output.

WIRING DIAGRAM

INSPECTION PROCEDURE
NOTE: When replacing the yaw rate and deceleration sensor, perform zero point calibration Programming and Relearning.
HINT: When U0073/94, U0123/62, U0124/95 or U0126/63 are output together with C1232/32 or C1234/34, inspect and repair the trouble areas indicated by U0073/94, U0123/62, U0124/95 or U0126/63 first.

PROCEDURE

1. CHECK DTC
(a) Clear the DTC(s) Reading and Clearing Diagnostic Trouble Codes.
(b) Check if the DTCs U0073/94, U0123/62, C1210/36 and/or C1336/39 are detected Reading and Clearing Diagnostic Trouble Codes.
Result:

C -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
B -- REPAIR CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT YAW RATE AND DECELERATION SENSOR

(a) Disconnect the yaw rate and deceleration sensor connector.
(b) Measure the voltage.
Standard voltage:

Result:

C -- REPAIR OR REPLACE HARNESS OR CONNECTOR
B -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
A -- REPLACE YAW RATE AND DECELERATION SENSOR