PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | CUSTOMER PROBLEM ANALYSIS |
HINT:
| What | Vehicle model, system name |
| When | Date, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time |
| Where | Whether the problem occurs at a specific location |
| Under what conditions? | Whether the doors were locked or unlocked, whether the engine switch was on (IG), whether the engine was started |
| How did it happen? | Problem symptoms |
|
| 3. | INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
(b) Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected.
(c) Check the connection of each connector and check them for deformation or damage.
|
| 4. | PROBLEM SYMPTOMS TABLE |
HINT:
Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in problem symptoms table | A |
| Fault is listed in problem symptoms table | B |
| B | | REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE |
|
| 5. | OVERALL ANALYSIS AND TROUBLESHOOTING |
(a) Operation check
Click here
(b) Terminals of ECU
Click here
(c) Inspection
|
| 6. | REPAIR OR REPLACE |
|
| 7. | CONFIRMATION TEST |
| NEXT | | END |
System Diagram
Operation CheckLexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Dynamic Torque Control Awd System: AWD Warning Light does not Come ON
DESCRIPTION Refer to "AWD Warning Light Remains ON". Click here WIRING DIAGRAM Refer to "AWD Warning Light Remains ON". Click here CAUTION / NOTICE / HINT NOTICE: When the 4WD ECU assembly is replaced with a known good one from another vehicle, it is necessary to perform calibration. Click here ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Window Control System: Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch
DESCRIPTION When the engine switch is on (IG), the power window regulator motor assembly (for front passenger door) is operated by the power window regulator switch assembly. The power window regulator motor assembly (for front passenger door) has motor, regulator, and ECU functions. WIRING DIAGRAM ...