Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedures to troubleshoot the steering lock system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 2. | CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer and confirm the problem.
Click here .gif)
|
| 3. | CHECK 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.
HINT:
A simple method to determine whether the battery is depleted is to operate the horn.
|
| 4. | CHECK DTC* |
(a) Check for DTCs and make a note of any codes that are output.
Click here
HINT:
When DTCs indicating CAN and/or LIN communication system malfunctions are output, repair the CAN and/or LIN communication systems before performing diagnosis.
for CAN communication system: Click here
for LIN communication system: Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. (Problem symptom cannot be confirmed or reproduced.) | A |
| DTCs are not output. (Problem symptom can be confirmed or reproduced.) | B |
| Steering lock system DTCs are output. | C |
HINT:
-
When steering lock system DTCs are output, refer to Diagnostic Trouble Code Chart.
Click here
- The steering lock system does not store history DTCs.
| B | .gif) | GO TO STEP 6 |
| C | | GO TO STEP 8 |
|
| 5. | SYMPTOM SIMULATION |
(a) Proceed to How to Proceed with Troubleshooting.
Click here
|
| 6. | PROBLEM SYMPTOMS TABLE |
(a) Proceed 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. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Proceed to Data List / Active Test.
Click here
(b) Proceed to Terminals of ECU.
Click here
| NEXT | | GO TO STEP 9 |
| 8. | CIRCUIT INSPECTION* |
|
| 9. | REPAIR OR REPLACE |
|
| 10. | CHECK DTC AGAIN* |
(a) Clear the DTCs.
Click here
(b) Check for DTCs and make a note of any codes that are output.
Click here
HINT:
Perform the DTC output confirmation operation.
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| Steering lock system DTCs are output. | B |
| A | | END |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
Dtc Check / Clear
DTC CHECK / CLEAR NOTICE:
The steering lock ECU (steering lock actuator or upper bracket assembly) does not store history DTCs. If any DTCs are output, confirm and record them as soon as possible. ...
Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *2 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - IG2 RELAY - IG2-MAIN FUSE - ECU-IG2 NO. 1 FUSE ILLUSTR ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected. System Procedure Lane Control System Pre-collision System ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Charging System: Lost Communication with Alternator Missing Message (P161A87)
DESCRIPTION The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory Note P161A87 Lost Communication with Alterna ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- For safety and security
- Instrument cluster
- Operation of each component
- Driving
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- 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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