Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Cruise Main Indicator Light Circuit
DESCRIPTION
When the dynamic radar cruise control system is turned on using the cruise control main switch, the cruise control indicator (vehicle-to-vehicle distance control mode) illuminates. The ECM uses this and other indicators to indicate the status (presence or absence of a preceding vehicle, vehicle-to-vehicle distance, malfunction of system or related systems) of the dynamic radar cruise control system.
CAUTION / NOTICE / HINT
NOTICE:
-
Before replacing the ECM, refer to Registration.
Click here
.gif)
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
| 1. | PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Combination Meter > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Meter Display 1 | Multi-information display | OFF or All | - |
| Tester Display |
|---|
| Meter Display 1 |
| Result | Proceed to |
|---|---|
| The multi-information display in the combination meter assembly turns on according to the operation of the Active Test | A |
| The multi-information display in the combination meter assembly does not turn on according to the operation of the Active Test | B |
| B | .gif) | GO TO METER / GAUGE SYSTEM |
|
.gif)
| 2. | READ VALUE USING TECHSTREAM |
(a) Enter the following menus: Powertrain / Radar Cruise 1 / Data List.
(b) Read the Data List according to the display on the Techstream.
Powertrain > Cruise Control > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Cruise Indicator | Cruise control indicator status | OFF or ON | OFF: Cruise control indicator turns off ON: Cruise control indicator illuminates | - |
| Tester Display |
|---|
| Cruise Indicator |
| Result | Proceed to |
|---|---|
| The cruise control indicator illuminates and turns off according to the operation of the cruise control main switch | A |
| The cruise control indicator does not illuminate but the Data List items change according to the operation of the cruise control main switch | B |
| The cruise control indicator does not illuminate and the Data List items do not change according to the operation of the cruise control main switch | C |
| A | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| B | | REPLACE COMBINATION METER ASSEMBLY |
| C | | REPLACE ECM |
Distance Control Switch Circuit
DESCRIPTION The vehicle-to-vehicle distance control switch is used to set the distance for vehicle-to-vehicle distance control mode. The vehicle-to-vehicle distance control switch is installed in the ...
Cruise SET Indicator Light Circuit
DESCRIPTION The ECM illuminates the cruise SET indicator by sending request signals to the combination meter assembly via CAN communication. The cruise SET indicator illuminates when the dynamic radar ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Vehicle Stability Control System: TRAC does not Operate
DESCRIPTION When TRAC or VSC is operating, the skid control ECU (brake actuator assembly) blinks the slip indicator light to inform the driver that slippage occurred. When in VSC off mode, or TRAC and VSC are disabled, the multi-information display in the combination meter assembly displays TRAC OFF ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Heated Steering Wheel System: Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System Pre-collision Sys ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
0.0161