Vehicle Speed Sensor: Testing and Inspection

VEHICLE SPEED SENSOR (VSS) INSPECTION [AW6A-EL, AW6AX-EL]

On-Vehicle Inspection

CAUTION:
- Water or foreign material entering the connector can cause a poor connection or corrosion. Be sure not to allow water or foreign material on the connector when disconnecting.
- Do not damage the terminals.

1. Disconnect the negative battery cable.

2. Remove the air cleaner component. Service and Repair

3. Remove the TCM. Service and Repair

4. Verify that there is no continuity between the coupler component terminals B19 and GND or B20 and GND.











- If there is any malfunction, inspect the coupler component.
- If the coupler component is normal, replace the ATX. Automatic Transaxle Removal/Installation

NOTE:
- Inspect with a tester that can indicate more than 10 megohms and confirm that the value is more than 1 megohm.

5. Verify that there is continuity between coupler component terminals B19 and B20.











- If there is any malfunction, inspect the coupler component.
- If the coupler component is normal, replace the ATX. Automatic Transaxle Removal/Installation

6. Install the TCM. Service and Repair

7. Install the air cleaner component. Service and Repair

8. Connect the negative battery cable.

Off-Vehicle Inspection

WARNING:
- A hot transaxle and ATF can cause severe burns. Turn off the engine and wait until they are cool before replacing the ATF.

CAUTION:
- Water or foreign material entering the connector can cause a poor connection or corrosion. Be sure not to allow water or foreign material on the connector when disconnecting.
- Do not damage the terminals.

1. Disconnect the negative battery cable.

2. Remove the VSS. Service and Repair

3. Connect the VSS terminal 2 to the battery positive terminal, connect the battery negative terminal to VSS terminal 1 through an ammeter set to a resistance of 100 ohm.






4. Measure the current while waving a magnet back and forth over the top of the VSS (less than 5 mm {0.197 in}).






- If there is any malfunction, replace the VSS. Service and Repair
VSS





5. Install the VSS. Service and Repair

6. Connect the negative battery cable.

7. Perform the mechanical system test. Mechanical System Test