Pinout Values and Diagnostic Parameters

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: TERMINALS OF ECU

1. CHECK POWER STEERING ECU ASSEMBLY





Text in Illustration





HINT
As connector z13 uses a lock lever, each terminal cannot be checked while the connector is still connected to the power steering ECU assembly.





(a) Measure the voltage and resistance according to the value(s) in the table below.

NOTICE:
When the P/S warning light is illuminated during a malfunction, the fail-safe function may cause the voltage of the power steering ECU assembly terminals to become 0 V.





If the result is not as specified, the ECU may have a malfunction.