Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use this procedure to troubleshoot the theft deterrent system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
.gif)
| 2. | CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer to confirm the problem.
Click here .gif)
|
| 3. | PRE-CHECK |
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
(b) Check the fuses and relays.
(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.
|
| 4. | SYMPTOM SIMULATION |
|
| 5. | INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the Techstream, check for CAN communication system DTCs.
Click here
| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
| B | .gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 6. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
| B | | GO TO STEP 8 |
|
| 7. | PERFORM OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) System Description
Click here
(b) Terminals of ECU
Click here
(c) Data List / Active Test
Click here
(d) Inspection
|
| 8. | REPAIR OR REPLACE |
|
| 9. | CONFIRMATION TEST |
| NEXT | | END |
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE THEFT DETERRENT SYSTEM NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized.
Be sure to make a note of the ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here HINT:
Troubleshooting of the theft deterrent system is based on ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Introduction: How To Use This Manual
General InformationGENERAL INFORMATION GENERAL DESCRIPTION (a) This manual is written in accordance with SAE J2008. (b) Repair operations can be separated mainly into the following 3 processes: (1) Diagnosis (2) Removing/Installing, Replacing, Disassembling/Reassembling, Checking and Adjusting (3) F ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Lock Function does not Operate (Close &)
DESCRIPTION The door control switch signal is sent to the multiplex network door ECU. If the power back door system does not operate when the door control switch is operated, the door control switch circuit may be malfunctioning. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
If the replacement, ...
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
0.0128