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 SYSTEMWASHER SIGNAL CIRCUIT
2009 Lexus ES 350 V6-3.5L (2GR-FE)
Washer Signal Circuit
2009 Lexus ES 350 V6-3.5L (2GR-FE)SECTION Washer Signal Circuit
CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Washer Signal Circuit
Washer Signal Circuit
DESCRIPTION
The distance control ECU detects washer operation. The cruise control will be cancelled by the distance control ECU if the windshield wipers operate in HI mode for 5 seconds or more. By detecting washer operation, the distance control ECU allows the cruise control to continue even when the windshield wipers operate in HI mode.
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 WASHER SYSTEM
(a) Refer to HOW TO PROCEED WITH TROUBLESHOOTING How To Proceed With Troubleshooting.
OK:
Washer 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.