Vehicle Speed Signal
The vehicle speed signal is generated by the rear anti-lock brake sensor and sent to the 4-wheel anti-lock brake system (4WABS) module. The 4WABS module sends the vehicle speed signal via circuit 679 (GY/BK) to all systems which require a vehicle speed signal input.
Speedometer
The electronic speedometer receives a speed signal from the 4WABS module.
GEM/CTM Diagnostic Trouble Code (DTC) Index
GEM/CTM Diagnostic Trouble Code (DTC) Index
DTC
Description
DTC Caused By
Action
P0500
Vehicle Speed Signal Circuit Failure
GEM
REFER to Section 308-07A .
Take your vehicle an have it diagnosed , before you buy parts you don't need . Just a suggestion , could be a wiring problem , the speedometer gauge , computer etc...
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