POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM TERMINALS OF ECU


  1. MULTIPLEX TILT AND TELESCOPIC ECU

    B004L0JC03
    *a

    Component with harness connected

    (Multiplex Tilt and Telescopic ECU)

    		 - -

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

      Tech Tips

      Inspect the connectors from the back side while the connectors are connected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K72-1 (GND) - Body ground

      W-B - Body ground*1

      LA - Body ground*2

      		 ECU ground Always Below 1 Ω
      K72-2 (+B) - K72-1 (GND)

      B - W-B*1

      LA-B - LA*2

      		 Motor power source Always 11 to 14 V
      K72-3 (CANP) - K72-11 (CANN) R - W CAN communication Engine switch off 54 to 69 Ω
      K72-4 (E1) - Body ground BE - Body ground Tilt sensor ground Always Below 1 Ω
      K72-5 (VC) - K72-18 (MSW) L - GR Tilt and telescopic switch signal Engine switch on (IG) 4.9 to 5.1 V
      K72-6 (TEM+) - K72-1 (GND)

      LA-B - W-B*1

      LA-B - LA*2

      		 Telescopic motor output

      • Engine switch on (IG)

      • Steering column contracting

      		 11 to 14 V
      Telescopic motor not operating Below 1 V
      K72-7 (TIM+) - K72-1 (GND)

      LA-LG - W-B*1

      LA-LG - LA*2

      		 Tilt motor output

      • Engine switch on (IG)

      • Steering wheel tilting up

      		 11 to 14 V
      Tilt motor not operating Below 1 V
      K72-8 (GND2) - Body ground

      W-B - Body ground*1

      LA - Body ground*2

      		 ECU ground Always Below 1 Ω
      K72-9 (ECUB) - K72-1 (GND)

      G - W-B*1

      LA-BR - LA*2

      		 ECU power source Always 11 to 14 V
      K72-10 (IG) - K72-1 (GND)

      L - W-B*1

      LA-L - LA*2

      		 IG signal / IG power source Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      K72-13 (VCI) - K72-4 (E1) B - BE Tilt sensor power source Engine switch on (IG) 8 to 14 V
      K72-14 (VCE) - K72-17 (E2) GR - LG Telescopic sensor power source Engine switch on (IG) 8 to 14 V
      K72-15 (TES) - K72-17 (E2) R - LG Telescopic sensor signal Telescopic motor operating

      Pulse generation

      HI: 8 to 14 V

      LOW: Below 1 V
      K72-16 (TIS) - K72-4 (E1) W - BE Tilt sensor signal Tilt motor operating

      Pulse generation

      HI: 8 to 14 V

      LOW: Below 1 V
      K72-17 (E2) - Body ground LG - Body ground Telescopic sensor ground Always Below 1 Ω
      K72-19 (TEM-) - K72-1 (GND)

      LA-G - W-B*1

      LA-G - LA*2

      		 Telescopic motor output

      • Engine switch on (IG)

      • Steering column extending

      		 11 to 14 V
      Telescopic motor not operating Below 1 V
      K72-20 (TIM-) - K72-1 (GND)

      LA-L - W-B*1

      LA-L - LA*2

      		 Tilt motor output

      • Engine switch on (IG)

      • Steering wheel tilting down

      		 11 to 14 V
      Tilt motor not operating Below 1 V

      • *1: for LHD

      • *2: for RHD