Adesso CNDV-50MT Service Manual download pdf (Page 118)

116

Appendix NAVI/AV

Troubleshooting

If you have problems operating your Navigation System, refer to this section. The most common prob-

lems are listed below, along with likely causes and solutions. While this list is not comprehensive, it

should answer your most common problems. If a solution to your problem cannot be found here, con-

tact your dealer or the nearest authorized Pioneer service facility.

Problems in the navigation screen

Symptom Cause Action (See)

Power doesn’t turn on.

The unit doesn’t operate.

Leads and connectors are incorrectly

connected.

Confirm once more that all connec-

tions are correct.

The fuse is blown. Rectify the reason for the fuse blow-

ing, then replace the fuse. Be very

sure to install the correct fuse with

the same rate.

Noise and other factors are causing

the built-in microprocessor to oper-

ate incorrectly.

Press RESET button. (

➞ “HardWare

Manual” and refer to page 114 in this

manual.)

There’s no sound.

Volume level is low.

The volume level is low. Adjust the

volume level.

The attenuator is on. Turn the attenu-

ator off.

When the ignition switch is turned

ON (or turned to ACC), the motor

sounds.

This unit confirms whether a disc is

loaded or not.

This is a normal operation.

You cannot position your vehicle on

the map or the positioning error is

large.

The quality of signals from the GPS

satellites is poor, causing reduced

positioning accuracy. Such a loss of

signal quality may happen for the fol-

lowing reasons:

•The GPS antenna is in an unsuita-

ble location.

•Obstacles are blocking signals from

the satellites.

•The position of satellites relative to

your vehicle is bad.

•Signals from the GPS satellites

have been modified to reduce accu-

racy. (GPS satellites are operated by

the US Department of Defense, and

the US government reserves the right

to distort positioning data for military

reasons. This may lead to greater

positioning errors.)

•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.

Check the GPS signal reception (

➞

Page 61) and the position of the GPS

antenna if necessary, or continue

driving until reception improves.

Keep the antenna clear.

Signals from the vehicle’s speed

pulse are not being picked up prop-

erly.

Check that the cables are properly

connected. If necessary, consult the

dealer that installed the system.

The navigation unit may not be

mounted securely in your vehicle.

Check that the navigation unit is

securely mounted and, if necessary,

consult the dealer that installed the

system.

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Adesso CNDV-50MT Service Manual Page 118

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