HEADUP DISPLAY SYSTEM TERMINALS OF ECU


  1. HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY)

    B0057AQE11

    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
      J5-1 (IG) - Body ground B - Body ground Engine switch signal Engine switch off Below 1 V
      Engine switch on (IG) 10.5 to 16 V*1
      11 to 14 V*2
      J5-2 (B) - Body ground G - Body ground Battery Always 11 to 14 V
      J5-4 (ES) - Body ground W-B - Body ground Ground Always Below 1 Ω
      J5-9 (SW1) - Body ground R - Body ground Headup display switch signal Engine switch on (IG), headup display switch (HUD) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (HUD) on 0 to 0.6 V
      Engine switch on (IG), headup display switch (DISP) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (DISP) on 0.8 to 1.6 V
      J5-10 (SW2) - Body ground L - Body ground Headup display switch signal Engine switch on (IG), headup display switch (contrast up) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (contrast up) on 0.8 to 1.6 V
      Engine switch on (IG), headup display switch (contrast down) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (contrast down) on 0 to 0.6 V
      Engine switch on (IG), headup display switch (position up) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (position up) on 3.1 to 4.1 V
      Engine switch on (IG), headup display switch (position down) off 4.7 to 5.5 V
      Engine switch on (IG), headup display switch (position down) on 1.8 to 2.7 V
      J5-12 (MPX1) - Body ground L - Body ground Radio receiver assembly communication signal Engine switch on (IG) Pulse generation
      J5-13 (MPX2) - Body ground LG - Body ground Radio receiver assembly communication signal Engine switch on (IG) Pulse generation
      J5-14(CS) B Local bus communication line - -
      J5-15(TX-) W Local bus communication line - -
      J5-16 (E) - Body ground B - Body ground Ground (Illumination ground) Always Below 1 Ω

      *1: w/ Stop and Start System

      *2: w/o Stop and Start System