Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: 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

K1-1 (B) - Body ground

GR - Body ground

Battery

Always

11 to 14 V

K1-2 (IG) - Body ground

B - Body ground

Engine switch signal

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

K1-4 (MPX1) - Body ground

B - Body ground

CAN communication line

-

-

K1-5 (MPX2) - Body ground

W - Body ground

CAN communication line

-

-

K1-6 (ES) - Body ground

BR - Body ground

Ground

Always

Below 1 Ω

K1-7 (TX+) - Body ground

SB - Body ground

Local bus communication line

-

-

K1-8 (TX-) - Body ground

BE - Body ground

Local bus communication line

-

-

K1-15 (E) - Body ground

R - Body ground

Ground

Always

Below 1 Ω

K1-16 (SW1) - K1-6 (ES)

LG - BR

Headup display switch assembly signal

Engine switch on (IG), headup display switch assembly not pushed

4 to 6 V

Engine switch on (IG), headup display switch assembly pushed

Below 1 V

    Problem Symptoms Table
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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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