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Home >> Lexus >> 2007 >> IS 350 V6-3.5L (2GR-FSE) >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Component Tests and General Diagnostics >> Pattern Select Switch Snow Mode Circuit
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Pattern Select Switch Snow Mode Circuit

Pattern Select Switch Snow Mode Circuit

DESCRIPTION
Cowl side J/B ECU receives pattern select switch information, and sends it through the multiplex communication system and CAN system to the ECM.

ECT SNOW is the system that operates the throttle motor to control engine output to reduce skidding of the driving wheels, guarantee takeoff acceleration, driving straightness and turning stability.

WIRING DIAGRAM:





HINT:
(*) Pattern Select Switch (ECT SNOW Switch)
When the ECT SNOW switch is pushed, the switch contact is made and the ECT SNOW mode is selected.

To cancel the ECT SNOW mode, push the ECT SNOW switch once again.

The ECT SNOW mode is automatically cancelled out when the engine switch is turned "off".

INSPECTION PROCEDURE

Step 1(Part 1):




Steps 1(Part 2)-2:




Steps 3-4: