DTC U1003 G and yaw rate sensor bus-off: Notes

Fig 1: G And Yaw Rate Sensor Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION:

• If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to DIAGNOSTIC TROUBLE CODE DIAGNOSIS ).
• Whenever ECU is replaced, ensure that the CAN bus lines are normal.
• Do not drop or shock the G and yaw rate sensor.
• When the G and yaw rate sensor is replaced, always carry out calibration to make ASC-ECU learn the neutral point (Refer to ALL SENSOR CALIBRATION (G AND YAW RATE SENSOR, STEERING WHEEL SENSOR, BRAKE FLUID PRESSURE SENSOR)  ).
• When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor, the G and yaw rate sensor and brake fluid pressure sensor (Refer to ALL SENSOR CALIBRATION (G AND YAW RATE SENSOR, STEERING WHEEL SENSOR, BRAKE FLUID PRESSURE SENSOR)  , STEERING WHEEL SENSOR CALIBRATION  and BRAKE FLUID PRESSURE SENSOR CALIBRATION  ).