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


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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. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7].)

3.  Remove the TCM. (See TCM REMOVAL/INSTALLATION [AW6AX-EL].)

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

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•  If there is any malfunction, inspect the coupler component.
•  If the coupler component is normal, replace the ATX. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [AW6AX-EL].)
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.

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•  If there is any malfunction, inspect the coupler component.
•  If the coupler component is normal, replace the ATX. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [AW6AX-EL].)

6.  Install the TCM. (See TCM REMOVAL/INSTALLATION [AW6AX-EL].)

7.  Install the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7].)

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. (See VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION [AW6AX-EL].)

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.

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

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•  If there is any malfunction, replace the VSS. (See VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION [AW6AX-EL].)

VSS

Signal

Current (mA)

High
12.0—16.0
Low
4.0—8.0

5.  Install the VSS. (See VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION [AW6AX-EL].)

6.  Connect the negative battery cable.

7.  Perform the mechanical system test. (See MECHANICAL SYSTEM TEST [AW6AX-EL].)