C1381
BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1232/32: Stuck in Deceleration Sensor
DTC C1232/32 - Stuck in Deceleration Sensor
DTC C1234/34 - Yaw Rate Sensor Malfunction
DTC C1243/43 - Acceleration Sensor Stuck Malfunction
DTC C1244/44 - Open or Short in Deceleration Sensor Circuit
DTC C1245/45 - Acceleration Sensor Output Malfunction
DTC C1381/97 - Acceleration Sensor Power Supply Voltage Malfunction
DESCRIPTION
The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has a built-in acceleration sensor.
If there is trouble in the bus lines between the yaw rate and acceleration sensor and the CAN communication system, the DTC U0123/62 (lost communication with yaw rate sensor module) and U0124/95 (lost communication with lateral acceleration sensor module) are output.
These DTCs are also output when the calibration has not been completed.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTE:
When replacing the yaw rate and acceleration sensor, perform zero point calibration Calibration.
PROCEDURE
1. CHECK DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Turn the ignition switch off.
(c) Turn the ignition switch to the ON position.
(d) 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 CIRCUIT INDICATED BY OUTPUT DTC
B -- INSPECT CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT YAW RATE AND ACCELERATION SENSOR (IG AND GND TERMINAL)
(a) Disconnect the yaw rate and acceleration sensor connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:
(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:
Result:
C -- REPAIR OR REPLACE HARNESS OR CONNECTOR (IG OR GND CIRCUIT)
B -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
A -- REPLACE YAW RATE AND ACCELERATION SENSOR