Inspection Procedure 12: ASC-ECU power supply circuit system: Notes

WARNING: This page is about a different variant/trim than selected.

Fig 1: Solenoid Valve, Motor And ASC-ECU Power Supply Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION:

When the ASC-ECU power supply voltage becomes 9.7 ± 0.3 V or less, the ABS warning lamp, ASC warning display, and ASC OFF display illuminate, and the ABS, stability control, and TCL controls are prohibited.
If the battery terminal is not tightened properly, a dump surge may occur and the power supply voltage may become abnormally high for a short time.
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 TROUBLE CODE DIAGNOSIS ).
Whenever ECU is replaced, ensure that the CAN bus lines are normal.
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 ).