DTC    C1569    Battery Power Supply Voltage Malfunction

for Preparation Click here


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.)

DTC No.
DTC Detection Condition
Trouble Area
C1569
+B power source circuit malfunction
  1. Power source
  2. Wire harness or connector
  3. Power steering ECU Assembly

WIRING DIAGRAM


C104136E09


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR


    C112659E07

  1. Disconnect the P43 connector from the power steering ECU assembly.

  1. Measure the voltage according to the value in the table below.

    Voltage:
    Tester connection (Symbols)
    		Condition
    		Specified condition
    P43-6 (+B) - P43-5 (PGND)
    		Always
    		10 to 14 V

    NOTICE:
    If replacing the power steering ECU assembly, initialize the rotation angle sensor value and calibrate the torque sensor zero point (Click here).



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE POWER STEERING ECU ASSEMBLY