C1740

DTC C1740 LEFT REAR HEIGHT CONTROL SOLENOID VALVE CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition Part 1:

DTC Detecting Condition Part 2:

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.