## Gauges

#### Vehicle Speed Signal Circuit Troubleshooting (cont'd)

22-95

9. Turn the ignition switch OFF.

10. Connect the other test harness connector (A) to the VSS (B).

11. Raise the front of the vehicle and make sure it is securely supported.
12. Put the vehicle in neutral with the ignition switch ON (II).
13. Slowly rotate one wheel with the other wheel blocked.

Does voltage pulse from 0 to about 5 V or more?

YES – Go to step 14.

NO – Replace the VSS.

14. Disconnect the 22P connector ''A'' from the gauge assembly.

GAUGE ASSEMBLY CONNECTOR A (22P)

Wire side of female terminals

15. Touch a probe to the BLU/WHT wire and connect it to body ground through a voltmeter.
16. Slowly rotate one wheel with the other wheel blocked.

Does the voltmeter indicate pulsing voltage?

YES – Replace the speedometer assembly.

NO – Repair open in the BLU/WHT wire between the VSS and the speedometer.