Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Check For Intermittent Problems

1. Clear the DTCs.

   Click here

2. Switch the ECM from normal mode to check mode using the Techstream.

   Click here

3. Perform a simulation test.

   Click here

4. Check and wiggle the harness(es), connector(s) and terminal(s).

   Click here

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS NEXT 3. CONNEC ...

Basic Inspection

CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > For safety and security: Theft deterrent system
Immobilizer system The vehicle's keys have built-in transponder chips that prevent the hybrid system from starting if a key has not been previously registered in the vehicle's on-board computer. Never leave the keys inside the vehicle when you leave the vehicle. This system is designed to ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Starter: Inspection
INSPECTION PROCEDURE 1. INSPECT STARTER ASSEMBLY CAUTION: As a large electric current passes through the cable during this inspection, a thick cable must be used. If not, the cable may become hot and cause injury. NOTICE: Perform each of the following tests within 3 to 5 seconds to prevent the coil ...