C1774 - Electronic Modulated Suspension & Rear Air Suspension System

DTC C1774 POWER SOURCE CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition:

When turning the ignition switch to ON, the battery positive voltage is input to terminals B and IG of the suspension control ECU. By turning the ignition switch to OFF, the supply of the battery positive voltage to terminals B and IG stops, and the power is turned OFF.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

Step 5:

INSPECTION PROCEDURE