DIAGNOSIS SYSTEM
DESCRIPTION
(a) Lighting system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
Click here
INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
Terminals Of Ecu
Data List / Active TestLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Occupant Classification System: Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The passenger side buckle switch circuit consists of the occupant detection ECU and passenger side buckle switch (front seat inner belt assembly RH). DTC B1771 is stored when a malfunction is detected in the passenger side buckle switch circuit. DTC No. Detection Item DTC Detectio ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Air Conditioning System: ECO Switch Circuit
DESCRIPTION When the combination switch assembly (ECO mode switch) is turned on, the air conditioning amplifier assembly receives a combination switch assembly (ECO mode switch) ON signal and controls the air conditioning to enhance fuel efficiency. WIRING DIAGRAM PROCEDURE 1. READ VALUE USIN ...