Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: 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 symptom are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Headup display is not displayed. | Fuse (ECU-DCC NO. 2, ECU-IG1 NO. 8) | - |
| Wire harness or connector | - | |
| Headup display switch assembly circuit | | |
| Headup display (Meter mirror sub-assembly) | | |
| Brightness of the headup display does not change. | Perform Active Test (Display Brightness) | |
| Read the Data List (Brightness Up Switch (Meter)), Brightness Down Switch (Meter)) | | |
| Headup display (Meter mirror sub-assembly) | | |
| Combination meter assembly | | |
| Headup display is not displayed in the correct position. | Perform Active Test (Display Position) | |
| Read the Data List (Projection Position Up Switch (Meter), Projection Position Down Switch (Meter)) | | |
| Headup display (Meter mirror sub-assembly) | | |
| Combination meter assembly | | |
| Other headup display malfunction (Other systems are normal) | Headup display (Meter mirror sub-assembly) | |
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Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE HEADUP DISPLAY SYSTEM (a) Customizing with the Techstream (1) Connect the Techstream to the DLC3. (2) Turn the engine switch on (IG). (3) Turn the Techstream on. (4) Ent ...
Terminals Of Ecu
TERMINALS OF ECU HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Des ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Electric Parking Brake System: Left Electric Parking Brake Actuator Control Circuit Short to Ground (C060B11)
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Diagnosis Condition:
Electric parking brake not operating
Malfunction Status:
The ECU power supply is normal but ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Road Sign Assist System: Diagnosis System
DIAGNOSIS SYSTEM DIAGNOSIS FUNCTION (a) The road sign assist system displays a warning message on the multi-information display to inform the driver that the system is unavailable when it is malfunctioning. Warning Message Details DTC/RoB RSA Malfunction Visit Your Dealer Road sign assi ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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