Driveline Control System: Diagnosis: Self-Diagnosis: Notes

The control unit has a function of self-diagnosis. If a trouble occurs in the course of system startup, the control unit blinks the CHECK lamp and saves the trouble code.

Fig 1: Control Unit Self-Diagnosis Chart

Courtesy of ISUZU MOTOR CO.

NOTE: If an intermittent fault occurs, the control unit stops blinking upon removal of the fault. The trouble code is saved to the control unit.