C0371

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0371,C1279: Yaw Rate Sensor (Test Mode DTC)

DTC C0371 - Yaw Rate Sensor (Test Mode DTC)

DTC C1279 - Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)

DESCRIPTION

DTCs C0371 and C1279 can be deleted when the yaw rate and acceleration sensor sends a yaw rate and/or acceleration signal or when Test Mode ends. DTCs C0371 and C1279 are output only in Test Mode.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: When replacing the yaw rate and acceleration sensor, perform zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION
(a) Check that the yaw rate and acceleration sensor has been installed properly Installation.
OK:
The sensor should be tightened to the specified torque.
The sensor should not be installed in a tilted position.
NG -- INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY
OK -- Continue to next step.
2. INSPECT YAW RATE AND ACCELERATION SENSOR (IG TERMINAL)




(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
(b) Disconnect the yaw rate and acceleration sensor connector.
(c) Turn the ignition switch on (IG).
(d) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (IG CIRCUIT)
OK -- Continue to next step.
3. INSPECT YAW RATE AND ACCELERATION SENSOR (GND TERMINAL)




(a) Turn the ignition switch off.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NOTE: Check the yaw rate and acceleration sensor signal after replacement Test Mode Procedure.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)
OK -- REPLACE YAW RATE AND ACCELERATION SENSOR