Vehicle Speed Sensor (VSS)
- Ensure fuse No. 24 fuse (15-amp) in fuse box on driver's side of instrument panel, near steering column is okay. Replace fuse if necessary.
- Disconnect 3-pin electrical connector from Vehicle Speed Sensor (VSS). The VSS is located on top of transaxle. See Figure .
- Turn ignition on. Measure voltage between Black wire and the Black/Yellow wire on harness side of 3-pin electrical connector. If battery voltage exists, go to step 5). If battery voltage does not exist, check continuity between Black wire of 3-pin electrical connector and ground.
- If continuity exists, check and repair open circuit in Black/Yellow wire between 3-pin electrical connector and fuse No. 24 in fuse box on driver's side of instrument panel. If continuity does not exist, check for open circuit in Black wire to ground. Ground is located on coolant hose housing, just below distributor.
- Measure voltage between Blue/White wire and Black wire of 3-pin electrical connector. Voltage should be about 5 volts. If voltage is correct, go to next step. If voltage is not about 5 volts, check for open circuit or short to ground in Blue/White wire.
- Reinstall 3-pin electrical connector on VSS. Raise and support vehicle so front wheels can rotate. Connect voltmeter to Blue/White wire on 3-pin electrical connector and ground.
- Turn ignition on. Place shift lever in Neutral. Slowly rotate one front wheel while holding remaining front wheel from rotating and note voltage reading.
- Ensure voltage pulses from zero volts to about 5 volts. If voltage pulses correctly, vehicle speed sensor is okay. If voltage does not pulse correctly, replace vehicle speed sensor. See VEHICLE SPEED SENSOR (VSS) under REMOVAL & INSTALLATION. Turn ignition off. Remove voltmeter.