NO.5 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP. [CAR-NAVIGATION SYSTEM]


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5

Vehicle position deviates from the route map.

POSSIBLE CAUSE
•  Jammed radio signals from after market equipment (radar, remote engine starter, anti-theft device etc.)
•  Open or short circuit in harness (vehicle speed signal related).
•  Car-navigation unit malfunction
•  Poor connection of GPS antenna connector, terminal damage
•  GPS antenna malfunction
•  Open or short circuit in feeder line between GPS antenna feeder and car-navigation unit.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
•  Is any of the following after-market equipment installed? (Inspect especially near the GPS antenna.)
―  Radar
―  Remote engine starter
―  Anti-theft device
―  Other
Yes
Go to the next step.
No
Go to Step 3.
2
•  Remove the after-market equipment.
Caution
•  The procedure requires an assistant.
•  Drive the vehicle without any obstacles.
•  Does the vehicle indicator follow the steering wheel direction?
Yes
System is normal.
The after-market electrical device might be interrupting to GPS reception.
No
Go to the next step.
3
•  Position the vehicle without any obstacles and receive GPS for 5 min. at idle.
•  Does “GPS” show up on the left lower side of the display screen
Yes
Go to the next step.
No
Go to Step 8.
4
Caution
•  The procedure requires an assistant.
•  Start diagnostic function and indicate “Vehicle Signal” check screen.
•  Drive the vehicle.
•  Check the “SPEED” on the diagnosis screen.
•  Does the “SPEED” change according to the vehicle speed?
Note
•  If the engine started after diagnostic function activated, the diagnostic function is reset.
Yes
Go to the next step.
No
Go to Step 6.
5
Caution
•  The procedure requires an assistant.
•  Drive the vehicle and turn the steering wheel to the left or right.
•  Does the vehicle indicator follow the steering direction?
Yes
The system is normal.
Note
•  The vehicle indicator might be out of position in the following areas:
―  Parallel road, high-level road, loop road, tower type parking, high-rise building s lot.
No
Replace the car-navigation unit.
6
•  Turn the ignition switch to LOCK position,
•  Inspect the connection of car-navigation unit connector (24-pin).
•  Is the connector securely connected?
Yes
Go to the next step.
No
Securely connect the car-navigation unit connector.
7
•  Disconnect the car-navigation unit connector (24-pin).
•  Inspect both car-navigation unit connector and wiring harness-side connector terminal I for poor connection (such as damaged/pulled out pins, corrosion).
•  Is the pin normal?
Yes
Inspect for vehicle speed signal circuit (between instrument cluster and car-navigation unit)
Repair or replace if necessary.
No
If the car-navigation unit connector is wrong:
•  Replace the car-navigation unit.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
8
•  Start diagnostic function and indicate “Vehicle Signal” check screen.
•  Drive the vehicle.
•  Check the “GPS Antenna” on the diagnosis screen.
•  Is “OK” indicated?
Note
•  If the engine is started after diagnostic function is activated, the diagnostic function is reset.
Yes
Go to Step 6.
No
Go to the next step.
9
•  Turn the ignition switch to LOCK position.
•  Inspect the connection of the car-navigation unit connector (3-pin) and GPS antenna connector.
•  Is the connector securely connected?
Yes
Go to the next step.
No
Securely connect the suspect connector.
10
•  Disconnect the GPS antenna and car-navigation unit connector and inspect for poor connection (such as damaged/pulled out pins, corrosion).
•  Are all pins normal?
Yes
Go to the next step.
No
If the car-navigation unit connector is wrong:
•  Replace the car-navigation unit.
If the GPS antenna connector is wrong:
•  Replace the GPS antenna.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
11
•  Replace the GPS antenna.
•  Does the vehicle position deviate from route map continuously?
Yes
Replace the car-navigation unit.
No
Troubleshooting completed.
(GPS antenna malfunction)