Lexus RX (RX 350L, RX450h) 2016-2025 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
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptom are listed in order of ...
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Head Up Display / T ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Startability Malfunction (P160400)
DESCRIPTION This DTC is stored when the engine does not start even though the STA signal is input or when the engine takes a long time to start, and when the engine speed is low or the engine stalls just after the engine starts. Using the Techstream, the conditions present when the DTC was stored ca ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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