C1554

DTC C1554 POWER SUPPLY RELAY FAILURE

CIRCUIT DESCRIPTION

DTC Detection Item:

When a problem occurs in the system, the power source relay (built into the power steering ECU assy) circuit and the motor relay (built into the power steering ECU assy) circuit are shut off to stop power assist. It is necessary to replace the ECU when there is a problem in the relay because each relay is built into the ECU.

Wiring Diagram:

Step 1 - 3:

INSPECTION PROCEDURE