Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).
When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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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.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the LIN communication system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Terminals Of Ecu
TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Disconnect the MB main body ECU (multiplex network body ECU) connector. Click here ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Air Conditioning Unit: Reassembly
REASSEMBLY PROCEDURE 1. INSTALL NO. 2 AIR CONDITIONING HARNESS ASSEMBLY (a) Engage the 2 claws to install the No. 2 air conditioning harness assembly. 2. INSTALL REAR EVAPORATOR SUB-ASSEMBLY (a) Install the rear evaporator sub-assembly as shown in the illustration. Install in t ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Gear: Installation
INSTALLATION PROCEDURE 1. INSTALL TIE ROD ASSEMBLY LH (a) Install the lock nut and tie rod assembly LH to the steering gear assembly until the matchmarks are aligned. HINT: After adjusting the toe-in, tighten the lock nut. *a Matchmark 2. INSTALL TIE ROD ASSEMBLY RH HINT: ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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