DTC C1290: CAN time-out error: Notes

CAUTION:

If diagnostic trouble code No. C1290 is set in ASC-ECU, always diagnose the CAN bus lines. If there is any fault in the CAN bus lines (Refer to CAN BUS LINE DIAGNOSTIC FLOW ), an incorrect DTC may be set.
When the diagnostic trouble code No. C1290 is set in ASC-ECU, a diagnostic trouble code for another system may also be set. When the diagnostic trouble code for another system is set, carry out diagnosis for that system first.
Whenever the ECU is replaced, ensure that the communication circuit is normal.
When the steering wheel sensor is replaced, always perform calibration to make ASC-ECU learn the neutral point (Refer to STEERING WHEEL SENSOR CALIBRATION ).
When the hydraulic unit (integrated with ASC-ECU) is replaced, always perform the calibration of steering wheel sensor, G and yaw rate sensor, brake fluid pressure sensor, cut valve, and inlet valve (Refer to G AND YAW RATE SENSOR CALIBRATION , STEERING WHEEL SENSOR CALIBRATION , MASTER CYLINDER BRAKE FLUID PRESSURE SENSOR CALIBRATION , and CALIBRATION OF CUT VALVE AND INLET VALVE ).