POWER STEERING SYSTEM(for Power Tilt and Power Telescopic Steering Column) TERMINALS OF ECU


  1. CHECK POWER STEERING ECU ASSEMBLY

    A01XP6FC03
    *a

    Component with harness connected

    (Power Steering ECU Assembly)

    		 - -

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

      Note

      When the power steering warning light (red) is illuminated due to a malfunction, the fail-safe function may cause the voltage of the power steering ECU assembly terminals to become 0 V.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      n2-1 (IG) - Body ground R - Body ground IG power source Engine switch on (IG)

      8 to 16 V*1

      10.5 to 16 V*2
      n2-6 (TS) - Body ground G - Body ground Test mode signal Always 9 to 16 V
      n2-7 (CANH) - n2-8 (CANL) W - B CAN communication line Engine switch off 54 to 69 Ω
      z11-8 (TRQV) - z11-2 (TRQG) R - B Torque sensor voltage source Engine switch on (IG) 4.5 to 5.5 V
      z11-1 (TRQ2) - z11-2 (TRQG) Y - B Torque sensor 2 signal Engine running, steering wheel not being turned (without load) 2.3 to 2.7 V
      Engine running, steering wheel being turned to the right with vehicle stopped 1.2 to 2.5 V
      Engine running, steering wheel being turned to the left with vehicle stopped 2.5 to 3.8 V
      z11-2 (TRQG) - Body ground B - Body ground Torque sensor ground Always Below 1 Ω
      z11-9 (TRQ1) - z11-2 (TRQG) W - B Torque sensor 1 signal Engine running, steering wheel not being turned (without load) 2.3 to 2.7 V
      Engine running, steering wheel being turned to the left with vehicle stopped 1.2 to 2.5 V
      Engine running, steering wheel being turned to the right with vehicle stopped 2.5 to 3.8 V
      n1-1 (PIG) - Body ground R - Body ground Power source Engine switch on (IG) 9 to 16 V
      n1-2 (PGND) - Body ground B - Body ground Power ground Always Below 1 Ω

      • *1: w/o Stop and Start System

      • *2: w/ Stop and Start System