POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM TERMINALS OF ECU


  1. MULTIPLEX TILT AND TELESCOPIC ECU

    A0005WCE03
    Text in Illustration
    *a

    Component without harness connected

    (Multiplex Tilt and Telescopic ECU)

    		 - -

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      H12-1 (GND) - Body ground W-B - Body ground ECU ground Always Below 1 Ω
      H12-2 (+B) - H12-1 (GND) Y - W-B Motor power source Always 11 to 14 V
      H12-3 (CANP) - H12-11 (CANN) L - GR CAN communication Power switch off 54 to 69 Ω
      H12-4 (E1) - Body ground P - Body ground Tilt sensor ground Always Below 1 Ω
      H12-5 (VC) - H12-18 (MSW) LG - W Tilt and telescopic switch signal Power switch on (IG) 4.9 to 5.1 V
      H12-6 (TEM+) - H12-1 (GND) R - W-B Telescopic motor output

      • Power switch on (IG)

      • Steering column contracting

      		 11 to 14 V
      Telescopic motor not operating Below 1 V
      H12-7 (TIM+) - H12-1 (GND) B - W-B Tilt motor output

      • Power switch on (IG)

      • Steering wheel tilting up

      		 11 to 14 V
      Tilt motor not operating Below 1 V
      H12-8 (GND2) - Body ground W-B - Body ground ECU ground Always Below 1 Ω
      H12-9 (ECUB) - H12-1 (GND) W - W-B ECU power source Always 11 to 14 V
      H12-10 (IG) - H12-1 (GND) V - W-B IG signal / IG power source Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      H12-13 (VCI) - H12-4 (E1) L - P Tilt sensor power source Power switch on (IG) 8 to 14 V
      H12-14 (VCE) - H12-17 (E2) SB - B Telescopic sensor power source Power switch on (IG) 8 to 14 V
      H12-15 (TES) - H12-17 (E2) G - B Telescopic sensor signal Telescopic motor operating

      Pulse generation

      HI: 8 to 14 V

      LOW: Below 1 V
      H12-16 (TIS) - H12-4 (E1) R - P Tilt sensor signal Tilt motor operating

      Pulse generation

      HI: 8 to 14 V

      LOW: Below 1 V
      H12-17 (E2) - Body ground B - Body ground Telescopic sensor ground Always Below 1 Ω
      H12-19 (TEM-) - H12-1 (GND) L - W-B Telescopic motor output

      • Power switch on (IG)

      • Steering column extending

      		 11 to 14 V
      Telescopic motor not operating Below 1 V
      H12-20 (TIM-) - H12-1 (GND) G - W-B Tilt motor output

      • Power switch on (IG)

      • Steering wheel tilting down

      		 11 to 14 V
      Tilt motor not operating Below 1 V