C1751

DTC C1751 Continuous Electric Current to Height Control Compressor

CIRCUIT DESCRIPTION

DTC Detection Condition:

*1: Since the relief pressure of the compressed air is 980 kPa (10 kgf/sq.cm, 142 psi), if vehicle height control is attempted on a steeply sloping road, when the vehicle is overloaded, or when the vehicle is jacked up with the engine running, the compressor motor operates continuously to raise vehicle height, and causes electric current to flow to the height control relay for 8 minutes or longer.

Thus DTC C1751/51 may be output and vehicle height control may be suspended (This is not abnormal.). In this case, however, the vehicle height operation is resumed approx. 10 min. after the ignition switch is turned ON after the ECU detects the first error. When the ECU detects the following errors it takes 70 minutes until the control is resumed.

Step 1 - 2:

Step 3 - 4:

INSPECTION PROCEDURE