Replace the output speed sensor on the automatic transmission to restore proper speedometer operation and transmission shifting.

Warnings

Tools required

Parts

• Output speed sensor × 1 — 89413-06010 or equivalent
• O-ring for speed sensor × 1 — Usually included with sensor

Fluids

• Toyota WS ATF — 1 qt

Preparation

1. Park vehicle on level ground and apply parking brake
2. Place wheel chocks behind rear wheels
3. Raise front of vehicle with jack and support securely on jack stands
4. Remove plastic engine under cover if equipped (multiple 10mm bolts and push clips)
5. Locate the output speed sensor on the driver's side of the transmission, near the axle output shaft
6. Position drain pan beneath the sensor location

Procedure

1. 1

   Disconnect electrical connector
   Press the locking tab on the electrical connector and carefully pull it straight off the output speed sensor. Clean any dirt or debris from around the sensor body to prevent contamination from entering the transmission.
2. 2

   Remove sensor bolt
   Using a 10mm socket, remove the single bolt securing the output speed sensor to the transmission case. Keep the bolt for reinstallation.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
3. 3

   Extract old sensor
   Carefully pull the output speed sensor straight out of the transmission case. ATF will begin draining immediately. Allow fluid to drain into the pan for 30-60 seconds. Remove and inspect the old O-ring on the sensor.
4. 4

   Prepare new sensor
   Remove the new output speed sensor from packaging. Verify the new O-ring is properly seated in the groove on the sensor body. Lightly coat the O-ring with clean ATF to aid installation and prevent damage.
5. 5

   Install new sensor
   Insert the new output speed sensor straight into the transmission case bore. Push firmly until it seats completely flush against the transmission housing. Do not twist or force at an angle as this can damage the O-ring.
6. 6

   Torque sensor bolt
   Install the sensor mounting bolt and hand-tighten. Using a torque wrench, tighten the bolt to specification in a single smooth motion.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
7. 7

   Reconnect electrical connector
   Push the electrical connector firmly onto the sensor until you hear and feel a distinct click, confirming it is fully locked in place. Gently tug on the connector to verify it is secure.
8. 8

   Refill transmission fluid
   Add Toyota WS ATF through the transmission dipstick tube to replace the fluid lost during sensor replacement. Start with approximately 0.75-1.0 quarts. Check fluid level with engine at normal operating temperature per owner's manual procedure.
9. 9

   Reinstall under cover
   Reinstall the plastic engine under cover if it was removed. Ensure all clips and fasteners are properly secured. Lower the vehicle from jack stands.

Reassembly

1. Ensure electrical connector is fully locked with no gap between connector and sensor body
2. Verify no ATF leaks are present around the sensor installation point
3. Confirm transmission fluid is at proper level on dipstick with engine running and at operating temperature

Verification

• Start the engine and verify no diagnostic trouble codes (DTCs) related to the output speed sensor are present
• Test drive the vehicle and confirm speedometer operates correctly at various speeds
• Verify transmission shifts smoothly through all gears without hesitation or harsh engagement
• Check for any ATF leaks around the sensor after test drive
• Confirm transmission fluid level is correct after reaching operating temperature

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