Pinout Values and Diagnostic Parameters

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: TERMINALS OF ECU

1. CHECK POWER STEERING ECU





HINT
As connector z19 uses a lock lever, the terminals cannot be checked while the connector is still connected to the power steering ECU.





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

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





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