Up to 08/2009

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1569: Battery Power Supply Voltage Malfunction
C1569 - Battery Power Supply Voltage Malfunction

DESCRIPTION

As a fail-safe function, when the battery power supply voltage is malfunctioning, power assistance is limited/stopped.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
- If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor zero point calibration Programming and Relearning.
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE

1. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)

(a) Disconnect the F9 and F10 power steering ECU connector.





(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER STEERING ECU Removal