Lexus NX: System Description
SYSTEM DESCRIPTION
HEADUP DISPLAY SYSTEM DESCRIPTION
HINT:
- The meter mirror sub-assembly receives signals from the combination meter assembly via the CAN communication line. Information is displayed on the front window based on received signals.
- The meter mirror sub-assembly receives navigation-related signals from the radio receiver assembly via the local bus communication line. Information is displayed on the front window based on received signals.
(a) The headup display system receives signals from each ECU via CAN communication and local bus communication and displays driving assist information, such as current vehicle speed, on the windshield glass assembly. The brightness and position of the headup display can be changed on the settings screen of the multi-information display. Depending on certain conditions, the following items can be displayed on the headup display:
(b) Headup display function
(1) Information can be displayed on the front window glass by pressing the headup display switch assembly (HUD main switch) on the instrument panel.
| Display | Line |
|---|---|
| Vehicle Speed | CAN communication line |
| Sport Mode | CAN communication line |
| Eco Drive Indicator | CAN communication line |
| Turn-by-turn Navigation (w/ Navigation System) | Local bus communication line |
| Audio | Local bus communication line |
| Speed Limit Display | Local bus communication line |
| Dynamic Radar Cruise Control Warning (w/ Dynamic Radar Cruise Control System) | CAN communication line |
| Lane Departure Alert Warning (w/ Lane Departure Alert System) | CAN communication line |
| Pre-collision Warning (w/ Pre-collision System) | CAN communication line |
| Intelligent Clearance Sonar Warning (w/ Intelligent Clearance Sonar System) | CAN communication line |
| G Monitor (for F-SPORT) | CAN communication line |
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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 power switch on (IG). (3) Turn the Techstream on. (4) Ente
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
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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
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Inspection
INSPECTION PROCEDURE 1. CHECK BRAKE CYLINDER AND PISTON (a) Check the cylinder bore and piston for rust or scoring. If necessary, replace the disc brake cylinder and piston. 2. CHECK PAD LINING THICKNESS (a) Using a ruler, measure the pad lining thickness. Standard thickness: 10.0 mm (0.394 in.) Mi
Terminals Of Ecm
TERMINALS OF ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resistanc
