Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: 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 carrying out the basic engine check shown in the following procedure, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.
PROCEDURE
| 1. | CHECK BATTERY VOLTAGE |
NOTICE:
Carry out this check with the engine stopped and the engine switch off.
| Result | Proceed to |
|---|---|
| 11 V or higher | OK |
| Below 11 V | NG |
| NG | .gif) | CHARGE OR REPLACE BATTERY |
|
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| 2. | CHECK WHETHER ENGINE CRANKS |
| NG | | PROCEED TO PROBLEM SYMPTOMS TABLE |
|
| 3. | CHECK WHETHER ENGINE STARTS |
| NG | | GO TO STEP 6 |
|
| 4. | CHECK AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY |
(a) Visually check that the air cleaner filter element sub-assembly is not excessively contaminated with dirt or oil.
| NG | | REPLACE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY |
|
| 5. | CHECK IDLE SPEED |
(a) Check the engine idle speed.
Click here .gif)
| NG | | PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT |
|
| 6. | CHECK FUEL PRESSURE |
(a) Check the fuel pressure.
Click here
| NG | | PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT |
|
| 7. | CHECK FOR SPARK |
(a) Perform a spark test.
Click here
| OK | | PROCEED TO PROBLEM SYMPTOMS TABLE |
| NG | | PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT |
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 use ...
Registration
REGISTRATION CAUTION / NOTICE / HINT PROCEDURE 1. VIN (VEHICLE IDENTIFICATION NUMBER) NOTICE: The Vehicle Identification Number (VIN) must be written to a replacement ECM. HINT: The VIN is a 17-digit ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Navigation System: Telematics Transceiver Disconnected (B15DB)
DESCRIPTION If the radio receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recogn ...
Lexus RX (RX 350L, RX450h) 2016-2024 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-{YEAR} Owners Manual
- For your information
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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