112 ENGLISH What appears to be trouble is not always serious. Check the following points before calling a servicecenter.Navigation troublesTroubleshootingSymptoms Causes RemediesGeneral• Navigation voice cannotbe heard from thespeakers.Guidance voice level is setto the minimum level.Adjust it to the optimumlevel.• Navigation System doesnot work at all.The built-in microcomputermay have functionedincorrectly, etc.Reset the unit (see page 2).• “Low Temperature”appears and Navigation/Disc/HDD/SD do notwork.The internal temperatureis too low. This is normal.Internal protective circuitryis working.Leave the power on, andwait until the internaltemperature rises and theindication goes off.• Navigation information isnot precise.GPS antenna is affected bythe windshield if installed inthe car compartment.Install the GPS antennaoutside to avoid interference.• Mechanical noises areheard.The HDD is constantlyrotating at a high speedwhen the car ignition switchis on, causing imperceptiblemechanical noise (especiallywhen the temperature islow).This is normal.Destination setting• “NO P.O.I. FOUND”appears on the display.There are no matchingpoints in your selected cityor area.Find the location usinganother method.• “NO NAVIGABLEAREA” appears on thedisplay.The entered point is out ofthe navigable area.Enter a point within thenavigable area.You have tried to save thecurrent address into theSTORED ADDRESS (seepage 32) while you are outof the navigable area.This is normal. You cannotsave the current addressif it is located out of thenavigable area.
