Pioneer CNDV-50MT Vehicles that Cannot Obtain Speed Pulse Data, Conditions Likely to Cause

case, it is impossible for the system to use GPS positioning.

In tunnels or enclosed parking garages

Vehicles that Cannot Obtain Speed Pulse Data

❒The speed pulse data comes from the speed sensing circuit. The location of this speed sensing circuit depends on your vehicle model. In some cases, it is impossible to make a connection to it, and in such a case we recommend that the ND-PG1 speed pulse generator (sold separately) be used.

	Conditions Likely to Cause
	Noticeable Positioning Errors
	For various reasons such as the state of the road
	you are traveling on and the state of reception of
Under elevated roads or similar	the GPS signal, the actual position of your vehicle
	may differ from the position displayed on the map
	screen.
	• If you make a shallow turn.

When driving among high buildings

When driving through a dense forest or tall trees

•If a vehicle phone or cellular phone is used near the GPS antenna, GPS reception may be lost temporarily.

•Do not cover the GPS antenna with spray paint or vehicle wax, because this may block the reception of GPS signals. Snow buildup can also degrade the signals, so keep the antenna clear.

❒If, for any reason, GPS signals cannot be received, learning and error correction are not possible. If GPS positioning has been operat- ing for only a short time, your vehicle’s actual position and the current location mark on the map may diverge considerably. Once GPS reception is restored, accuracy will be recov- ered.

• If there is a parallel road.

•If there is another road very nearby, such as in the case of an elevated freeway.

Appendix

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