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Home >> Scion >> 2014 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Power Steering System (Diagnostic Codes & Circuit Tests) >> Power Steering System >> EPS Warning Light Circuit >> Inspection Procedure

Inspection Procedure

NOTE:
  • If the power steering ECU assembly is replaced with a new one, perform rotation angle sensor initialization and torque sensor zero point calibration. Refer to CALIBRATION [07/2013 - ] .
  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

HINT: 

When the power supply voltage to the power steering ECU assembly (terminals IG and PIG) drops, required steering effort increases and the EPS warning light turns on.