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Home >> Chevrolet >> 2014 >> Traverse LTZ, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - 6T75 (M7V M7X) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Control Solenoid Valve and Transmission Control Module Assembly Input Shaft Speed/Output Shaft Speed Input Test >> Transmission Input Speed Sensor
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Transmission Input Speed Sensor

  1. Ignition OFF, disconnect the ISS wiring harness connector X3 (1) from the control solenoid valve assembly.
  2. Ignition ON, test for 8.3-9.3 volts at terminal A.
  3. Ignition OFF, using the EL 35616  terminal test kit, connect the EL38522  variable signal generator red lead to the ISS signal circuit terminal B on the TCM.
  4. Connect the black lead from the EL 38522  variable signal generator to ground.
  5. Set the EL 38522  variable signal generator to 5 volts, the frequency to 300 Hz and the percent duty cycle to 50 or the normal position.
  6. Ignition ON, verify with a scan tool the Transmission ISS parameter is between 495-505 RPM.
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