Hyundai Elantra AD Quiz
Automatic Transmission

Output Speed Sensor Repair Procedures

In this manual: Automatic Transmission
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
14steps
~84min
3/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 14

Inspection

  1. Using GDS, check the input/output speed sensor signal waveforms.
    A. Turn the ignition off.
    B. Connect the GDS to the Data Link Connector (DLC) located below the lower instrument panel.
    C. Ignition switch ON and engine ON.
    D. Check the input/output speed sensor signal waveforms at high and low speeds.
    (Fig. 1) Input/Output Speed Sensor Waveform at Low Speed
    (Fig. 2) Input/Output Speed Sensor Waveform at High Speed

Removal

  1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air Cleaner")
  2. Remove the drain plug (A) and drain all ATF, then reinstall the drain plug.
    • Replace the gasket before reinstalling the drain plug.
    • After installation, start the engine, then check for leaks from the drain plug.
  3. Remove the wiring harness clamp (A).
  4. Disconnect the breather hose (B) from the valve body cover.

    Tightening torque: 9.8 ~ 11.8 N·m

  5. Disconnect the hose (A) after removing the hose clamp from the automatic transmission fluid cooler.
    • Carefully install the clamp so as not to damage the hose.
    • Install the clamp in the correct direction so that it does not interfere with other parts.
    • After installation, start the engine and check the hose for leaks.
  6. Disconnect the ATF warmer hose (A).
  7. Remove the heater pipe mounting bolt.
    • Carefully install the clamp so as not to damage the hose.
    • Install the clamp in the correct direction so that it does not interfere with other parts.
    • After installation, start the engine and check the hose for leaks.
  8. Remove the valve body cover (A).

    Tightening torque: 11.8 ~ 13.7 N·m
    • Replace the gasket (A) before reinstalling the valve body cover.
    • After installation, start the engine, then check for leaks from the valve body cover.
  9. Disconnect the fluid temperature sensor and solenoid valve connector (A) from the valve body.

    Tightening torque: 9.8 ~ 11.8 N·m
    • Check for looseness, poor connection, bending, corrosion, contamination, wear, or damage before reinstalling the solenoid valve connector.
  10. Remove the valve body assembly (A).

    Tightening torque: 9.8 ~ 11.8 N·m

  11. Disconnect the input and output speed sensor connector (A).
  12. Remove the input and output speed sensor (A) after removing the bolts (2EA).

    Tightening torque: 9.8 ~ 11.8 N·m

Installation

  1. To install, reverse the removal procedure.
  2. Check the fluid level after filling the automatic transaxle with fluid. (Refer to Hydraulic System - Fluid)

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.