Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2011HS 250H L4-2.4L (2AZ-FXE) HYBRIDREPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESDYNAMIC RADAR CRUISE CONTROL SYSTEM
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) Hybrid
Dynamic Radar Cruise Control System
2011 Lexus HS 250h L4-2.4L (2AZ-FXE) HybridSECTION Dynamic Radar Cruise Control System
CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DATA LIST / ACTIVE TEST
1. DATA LIST
HINT
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Radar Cruise / Data List.
(e) Read the Data List according to the display on the Techstream.
Radar Cruise
HINT
Use the following combinations from the Diagnostic Note column to help determine the malfunction
* 3 is OK, but 1 is NG -> Hybrid vehicle control ECU failure
* 1 is OK, but 2 is NG -> DTC output or hybrid vehicle control ECU failure
* 3 is OK, but cruise main indicator light does not illuminate -> Cruise main indicator light, wire harness, or hybrid vehicle control ECU failure
2. ACTIVE TEST
HINT
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) Perform Active Test according to the display on the Techstream.
HINT
The power switch must be turned on (IG) to proceed with the Active Test using the Techstream.
Combination Meter
(f) Enter the following menus: Chassis / ABS / VSC / TRAC / Active Test.
(g) Perform Active Test according to the display on the Techstream.
HINT
The power switch must be turned on (IG) to proceed with the Active Test using the Techstream.
ABS / VSC / TRAC
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.