Acceleration Sensor Stuck Malfunction

DTC C0371/71 Yaw Rate Sensor (Test Mode DTC)
DTC C1234/34 Yaw Rate Sensor Malfunction
DTC C1243/43 Acceleration Sensor Stuck Malfunction
DTC C1244/44 Open or Short in Acceleration Sensor Circuit
DTC C1245/45 Acceleration Sensor Output Malfunction
DTC C1279/79 Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
DTC C1381/97 Yaw Rate and/or Acceleration Sensor Power Supply Voltage Malfunction

DESCRIPTION

DTC DETECTION CONDITION:

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 and detects the vehicle's condition using 2 circuits (GL1, GL2).

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

These DTCs are also output when the calibration has not been completed. DTCs C0371/71 and C1279/79 can be deleted when the yaw rate and acceleration sensor sends a yaw rate and/or acceleration signal or the Test Mode ends. DTCs C0371/71 and C1279/79 are output only in the Test Mode.

WIRING DIAGRAM:

NOTICE: When replacing the yaw rate and acceleration sensor, perform zero point calibration.

HINT: When U0123/62, U0124/95 or U0126/63 is output together with C1232/32, C1234/34, C1243/43, C1244/44, C1245/45, or C1381/97, inspect and repair the trouble areas indicated by U0123/62, U0124/95 or U0126/63 first.

INSPECTION PROCEDURE

Step 1:

Steps 1 (Continued)-3:

Step 4: