STEERING LOCK SYSTEM TERMINALS OF ECU


  1. STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)


    1. Disconnect the F37 steering lock ECU connector.

      A019N28E35
    2. Measure the voltage and resistance according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F37-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F37-6 (IG2) - F37-1 (GND) B - W-B IG2 signal input Engine switch off → engine switch on (IG) Below 1 V → 11 to 14 V
      F37-7 (B) - F37-1 (GND) L - W-B Power source Always 11 to 14 V
    3. Reconnect the F37 steering lock ECU connector.

    4. Measure the voltage according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F37-3 (IGE) - F37-1 (GND) L - W-B Power source for driving motor

      When all of the following conditions are met:


      • Steering lock unlocked

      • Engine switch off

      • Shift lever in P

      • Driver side door close to open

      11 to 14 V (Steering lock motor not operating) → Below 1 V (Steering lock motor operating)
      F37-4 (SLP1) - F37-1 (GND) G - W-B Unlock position sensor output signal Steering lock locked → steering lock unlocked 11 to 14 V → Below 1.2 V

      If the result is not as specified, there may be a malfunction in the wire harness.