C1739

DTC C1737 RIGHT FRONT HEIGHT CONTROL SOLENOID VALVE CIRCUIT
DTC C1738 LEFT FRONT HEIGHT CONTROL SOLENOID VALVE CIRCUIT
DTC C1739 RIGHT REAR HEIGHT CONTROL SOLENOID VALVE CIRCUIT
DTC C1740 LEFT REAR HEIGHT CONTROL SOLENOID VALVE CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition:

DTC Detection Condition:

FRONT HEIGHT CONTROL SOLENOID VALVE:
The height control valve sub-assembly No.1 (front height control solenoid valve) independently opens and closes paths to the pneumatic cylinder for the front wheel side by receiving signals from the suspension control ECU.

HINT: The right left solenoid valves are integrated and mounted on front side.

REAR HEIGHT CONTROL SOLENOID VALVE:
The height control valve sub-assembly No.2 (rear height control solenoid valve) independently opens and closes paths to the pneumatic cylinder for the rear wheel side by receiving signals from the suspension control ECU. HINT: The right left solenoid valves are integrated and mounted on rear side.

Wiring Diagram:

Step 1-2:

Step 3:

Step 3(continued):

Step 4:

Step 5:

INSPECTION PROCEDURE

HINT: Proceed to troubleshooting following the flow chart, regardless of whether or not DTC C1737, C1738, C1739 or C1740 is displayed.