HEADUP DISPLAY SYSTEM TERMINALS OF ECU


  1. COMBINATION MIRROR METER ASSEMBLY


    1. Check input/output signals

      A000PA6E06

      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
        P1-1 (IG) - Body ground LG - Body ground Power switch signal Power switch off Below 1 V
        Power switch on (IG) 11 to 14 V
        P1-2 (B) - Body ground L - Body ground Battery Always 11 to 14 V
        P1-4 (ES) - Body ground W-B - Body ground Ground Always Below 1 Ω
        P1-9 (SW1) - Body ground G - Body ground Headup display switch signal Headup display switch (HUD) off 4.7 to 5.5 V
        Headup display switch (HUD) on 0 to 0.6 V
        Headup display switch (DISP) off 4.7 to 5.5 V
        Headup display switch (DISP) on 0.8 to 1.6 V
        P1-10 (SW2) - Body ground B - Body ground Headup display switch signal Headup display switch (contrast up) off 4.7 to 5.5 V
        Headup display switch (contrast up) on 0.8 to 1.6 V
        Headup display switch (contrast down) off 4.7 to 5.5 V
        Headup display switch (contrast down) on 0 to 0.6 V
        Headup display switch (position up) off 4.7 to 5.5 V
        Headup display switch (position up) on 3.1 to 4.1 V
        Headup display switch (position up) on 4.7 to 5.5 V
        Headup display switch (position down) on 1.8 to 2.7 V
        P1-12 (MPX1) - Body ground P - Body ground CAN communication line - -
        P1-13 (MPX2) - Body ground R - Body ground CAN communication line - -
        P1-14 (TX+) - Body ground W - Body ground Local bus communication line - -
        P1-15 (TX-) - Body ground V - Body ground Local bus communication line - -
        P1-16 (E) - Body ground W - Body ground Ground Always Below 1 Ω