C1569

POWER STEERING: ELECTRONIC POWER STEERING SYSTEM: C1569: Battery Power Supply Voltage Malfunction

DTC C1569 - Battery Power Supply Voltage Malfunction

DESCRIPTION

Terminal +B of the power steering ECU assembly receives power from the battery and then provides power to the power steering converter and ignition off circuit.
(or The power steering ECU assembly receives power for the power steering converter and ignition off circuit from the battery via terminal +B.)






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR





(a) Disconnect the P41 connector from the power steering ECU assembly.
(b) Measure the voltage according to the value in the table below.
Voltage:





NOTE: If replacing the power steering ECU assembly, initialize the rotation angle sensor value and calibrate the torque sensor zero point Programming and Relearning.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE POWER STEERING ECU ASSEMBLY