DTC 74

DTC 74 Power Source Circuit

CIRCUIT DESCRIPTION
When the ignition switch is turned to ON, the ignition relay is activated and battery positive voltage is applied to terminal +B of the ECU. When the ignition switch is turned to OFF, the ignition relay is de-energized and the power source is cut off.
This power source energizes the suspension control actuator, height control valve, relay, indicator, each IC and sensor.





DETECTING CONDITIONS





WIRING DIAGRAM

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INSPECTION PROCEDURE