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 MANUALSLEXUS2009ES 350 V6-3.5L (2GR-FE)REPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSDYNAMIC RADAR CRUISE CONTROL SYSTEMWIPER SIGNAL CIRCUIT
2009 Lexus ES 350 V6-3.5L (2GR-FE)
Wiper Signal Circuit
2009 Lexus ES 350 V6-3.5L (2GR-FE)SECTION Wiper Signal Circuit
CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Wiper Signal Circuit
Wiper Signal Circuit
DESCRIPTION
The distance control ECU detects HI mode wiper operation. If the windshield wiper operate in HI mode for 5 seconds or more, the cruise control will be cancelled and "CRUISE NOT AVAILABLE" will be displayed on the multi-information display in the combination meter. Operating the cruise main switch after HI mode wiper operation stop sill start the cruise control again.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTE:
When the distance control ECU and/or ECM are replaced with a new one, initialization must be performed Installation.
PROCEDURE
1. INSPECT WIPER SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING How To Proceed With Troubleshooting.
OK:
Wiper function is normal.
NG -- GO TO WIPER AND WASHER SYSTEM
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR
(a) Disconnect the A8 and E11 connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
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.