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Gauges
9 .
1 0 .
Vehicle Speed Signal Circuit Troubleshooting (cont'd)
Turn the ignition switch OFF.
Connect the other test harness connector (A) to the
V S S ( B ) .
11. Raise the front of the vehicle, and make sure it is
securely supported.
12. Putthe vehicle in neutral with the ignition switch
oN ( ).
13. Slowly rotate one wheel with the other wheel
blocked.
Does voltage pulse f rom 0 to about 5 V or battery
voltage?
YES -Go to step 14.
NO - Replace the VSS. t
22-68
14. Disconnect the 18P connector "B" from the gauge
a s s e m b l y .
GAUGE ASSEMBLY CONNECTOR B {18P)
/1./l/
B6 87
B8 B9
/1,/1,/
Br3
B't5
8 1 6
811818
VSP (BLU/WHT}
Wire side of temale terminals
15. Touch the voltmeter positive probe to the gauge
assembly 815 terminal, and connect the negative
probe to body ground.
16. Slowly rotate one wheel with the other wheel
blocked.
Does voltage pulse trom 0 to about 5 V or battery
voltage?
YES Replace the speedometer assembly.l
NO-Repair open in the BLU/IVHT IWHT/GBN]
wire between the VSS and the speedometer.l
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Troubleshooting
