VEHICLE SPEED SENSOR (VSS) INSPECTION [AY6A-EL, AY6AX-EL]

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Caution

•  Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.

•  Do not damage the terminals.

On-Vehicle Inspection

1.  Disconnect the negative battery cable.

2.  Remove the fresh-air duct and air cleaner component as a single unit. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7].)

3.  Remove the TCM. (See TCM REMOVAL/INSTALLATION [AY6A-EL, AY6AX-EL].)

4.  Measure the no continuity between coupler component terminals B19 and GND, B20 and GND.

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•  If there is any malfunction, inspect the coupler component for continuity. (See COUPLER COMPONENT INSPECTION [AY6A-EL, AY6AX-EL].)

•  If the coupler component is normal, perform an off-vehicle inspection of VSS. (See Off-Vehicle Inspection.)

VSS specification

5.  Measure the continuity between coupler component terminals B19 and B20.

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•  If there is any malfunction, inspect the coupler component for continuity. (See COUPLER COMPONENT INSPECTION [AY6A-EL, AY6AX-EL].)

•  If the coupler component is normal, perform an off-vehicle inspection of VSS. (See Off-Vehicle Inspection.)

VSS specification

Off-Vehicle Inspection

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

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Note

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

2.  Measure the current while waving a magnet back and forth over the top of the VSS (less than 5 mm {0.2 in}).

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•  If there is any malfunction, replace the VSS.

VSS specification