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:
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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 | GO TO METER / GAUGE SYSTEM |
|
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 |
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Front Radar Sensor System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the front radar sensor system, perform troubleshooting for the pre-collision system.
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*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALY ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Sfi System: Fuel Rail Pressure Sensor "A" Signal Stuck in Range (P01902A,P019064)
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