C1551

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: C1551/25: IG Power Supply Voltage Malfunction
C1551/25 - IG Power Supply Voltage Malfunction

DESCRIPTION

The steering column assembly (power steering ECU) distinguishes the ignition switch status as ON or off through the IG power source circuit.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
* When the steering column assembly is replaced, perform the 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 (STEERING COLUMN ASSEMBLY - BATTERY AND BODY GROUND)

(a) Disconnect the connectors from the steering column assembly (power steering ECU).





(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 STEERING COLUMN ASSEMBLY Removal