Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | INSPECT 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.
|
| 3. | CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here .gif)
| Result | Proceed to |
|---|---|
| CAN DTC is not output | A |
| CAN DTC is output | B |
| B |  | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
| 4. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check for DTCs.
Click here
(b) Check for freeze frame data.
HINT:
Write down or print DTCs and freeze frame data if necessary.
(c) Clear the DTCs and freeze frame data.
Click here
(d) Recheck for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTC does not reoccur | A |
| DTC does reoccur | B |
| B | | GO TO STEP 7 |
|
| 5. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Fault not listed in problem symptoms table | A |
| Fault listed in problem symptoms table | B |
| B | | GO TO STEP 7 |
|
| 6. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU.
Click here
(b) Data List / Active Test.
Click here
|
| 7. | REPAIR OR REPLACE |
|
| 8. | CONFIRM TEST |
| NEXT | | END |
Calibration
CALIBRATION DESCRIPTION (a) When the 4WD ECU assembly is replaced with a known good one from another vehicle or the acceleration sensor (airbag ECU assembly*1 or yaw rate sensor assembly*2) is replace ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Steering Gear: Inspection
INSPECTION PROCEDURE 1. INSPECT TIE ROD ASSEMBLY LH (a) Secure the tie rod assembly LH in a vise between aluminum plates. NOTICE: Do not overtighten the vise. (b) Install the nut to the stud bolt. (c) Flip the ball joint back and forth 5 times. (d) Using a torque wrench and the nut, t ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Towing Converter Relay: On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT TOWING CONVERTER RELAY HINT: Remove interior parts so that the towing converter relay can be seen. (a) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Condition Specified Condition 1 (CTLB ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- When trouble arises
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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