C1774

DTC C1774 Power Source Circuit

CIRCUIT DESCRIPTION

DTC Detection Condition:

When the ignition switch is turned to ON, the D-IG1 relay is activated and battery voltage is applied to terminal B of the ECU. When the ignition switch is turned OFF, the IG1 relay is de-energized and the power source is cut off.

This power source energizes the suspension control actuator, height control solenoid valve, D-IG1 relay, each IC and sensor.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

Step 5 - 6:

INSPECTION PROCEDURE