C1553

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Hatchback): C1553: PIG Power Supply Overvoltage
C1553 - PIG Power Supply Overvoltage

DESCRIPTION

If the power steering ECU assembly determines that the motor power source voltage and the IG voltage are not within the specified range, it stops the power assist as a fail-safe function.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* If the power steering ECU assembly has been replaced, perform the torque sensor zero point calibration and assist map writing Programming and Relearning.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (IG)

(a) Disconnect the power steering ECU assembly connectors.





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

Standard Voltage:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - BODY GROUND) C1524

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POWER STEERING ECU ASSEMBLY Removal (from 07/2011)