This signal is sent from the (VECU) Vehicle Electronic Control Unit to the Cluster to present the actual vehicle speed. It is also used by the maximum speed limitation. The maximum speed limit can vary depending on customer option.
Conditions for diagnostic trouble code (DTC):
1) No vehicle speed available to VECU
Observable symptoms
1) None
Probable cause
1) Vehicle speed sensor
2) Vehicle Control Unit (VECU)
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