Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the headup display system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

CUSTOMER PROBLEM ANALYSIS

NEXT

3.

INSPECT BATTERY VOLTAGE

(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.

NEXT

4.

CHECK CAN COMMUNICATION SYSTEM*

(a) Check if CAN communication DTCs are output.

Click here

Result

Proceed to

CAN communication DTCs are not output.

A

CAN communication DTCs are output.

B

B

GO TO CAN COMMUNICATION SYSTEM

A

5.

CHECK FOR DTC*

(a) Check for DTCs.

Click here

Body Electrical > Head Up Display > Trouble Codes

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

6.

PROBLEM SYMPTOM CONFIRMATION

NEXT

7.

SYMPTOM SIMULATION

NEXT

8.

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 PROBLEM SYMPTOMS TABLE

A

9.

CIRCUIT INSPECTION

NEXT

10.

REPAIR OR REPLACE

NEXT

11.

CONFIRMATION TEST

NEXT

END

    System Description
    SYSTEM DESCRIPTION HEADUP DISPLAY SYSTEM DESCRIPTION (a) The headup display system receives signals from each ECU via CAN communication and local bus communication and displays driving assist informat ...

    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 ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Panoramic Moon Roof System: Motor Control Relay Stuck ON (B2345)
    DESCRIPTION This DTC will be stored if the operation of the sliding roof or roof sunshade is suspended and a pulse input of 10 Hz or more is detected when the motor relay is off. Sliding Roof DTC No. Detection Item DTC Detection Condition Trouble Area B2345 Motor Control Relay Stuck O ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Wiper Switch: Installation
    INSTALLATION PROCEDURE 1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY (a) Engage the claw as shown in the illustration to install the windshield wiper switch assembly. Install in this Direction (b) Connect the 2 connectors. 2. INSTALL UPPER STEERING COLUMN COVER (a) Engage the claw to install ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2026 Copyright www.lexusrx.net
    0.0161