Inspection Procedure

HINT: 

• When U0126/63 is output together with C1231/31, inspect and repair the trouble areas indicated by U0126/63 first, refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module; DTC U0293/59: Communication Error from HV ECU .
• When the speed sensor or the yaw rate and acceleration sensor are malfunctioning, DTCs for the steering angle sensor may be output even when the steering angle sensor is normal. When DTCs for the speed sensor or the yaw rate and acceleration sensor are output together with DTCs for the steering angle sensor, inspect and repair the speed sensor and the yaw rate and acceleration sensor first, and then inspect and repair the steering angle sensor.