Lexus NX: Terminals Of Ecu

TERMINALS OF ECU

HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY)

(a) 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

Power switch signal

Power switch off

Below 1 V

Power switch on (IG)

11 to 14 V

J5-2 (B) - Body ground

G - Body ground

Auxiliary battery

Power switch off

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

Power switch on (IG), headup display switch (HUD) off

4.7 to 5.5 V

Power switch on (IG), headup display switch (HUD) on

0 to 0.6 V

Power switch on (IG), headup display switch (DISP) off

4.7 to 5.5 V

Power 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

Power switch on (IG), headup display switch (contrast up) off

4.7 to 5.5 V

Power switch on (IG), headup display switch (contrast up) on

0.8 to 1.6 V

Power switch on (IG), headup display switch (contrast down) off

4.7 to 5.5 V

Power switch on (IG), headup display switch (contrast down) on

0 to 0.6 V

Power switch on (IG), headup display switch (position up) off

4.7 to 5.5 V

Power switch on (IG), headup display switch (position up) on

3.1 to 4.1 V

Power switch on (IG), headup display switch (position down) off

4.7 to 5.5 V

Power switch on (IG), headup display switch (position down) on

1.8 to 2.7 V

J5-12 (MPX1) - Body ground

Y - Body ground

Radio receiver assembly communication signal

Power switch on (IG)

Pulse generation

J5-13 (MPX2) - Body ground

W - Body ground

Radio receiver assembly communication signal

Power 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

READ NEXT:

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