C1723

DTC C1721/21 Front Damping Force Control Actuator Circuit Malfunction
DTC C1723/23 Rear Damping Force Control Actuator Circuit Malfunction

DESCRIPTION





The ECU sends a signal to the damping force control actuator to drive the rotary valve of the shock absorber changing the shock absorber damping force. The actuator is driven electromagnetically by step motor so that it can accurately follow the driving conditions that change frequently

HINT:
^ DTC C1721/21 corresponds to the front damping force control actuator circuit.
^ DTC C1723/23 corresponds to the rear damping force control actuator circuit. Fail-safe function: If a trouble occurs in the front or rear wheel damping force control actuator circuit, the ECU prohibits the damping force control after the ECU has returned the damping force of the other side wheel to the normal condition.

Wiring Diagram - Part 1:

Wiring Diagram - Part 2:

INSPECTION PROCEDURES

Steps 1-3: