NO.5 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP [CAR-NAVIGATION SYSTEM]SM2446133
NO.5 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP [CAR-NAVIGATION SYSTEM]

id0903e8802100

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. (See SELF-DIAGNOSTIC [CAR-NAVIGATION SYSTEM].)
• 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. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
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. (See SELF-DIAGNOSTIC [CAR-NAVIGATION SYSTEM].)
• 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 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. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
If the GPS antenna connector is wrong:
• Replace the GPS antenna. (See GPS ANTENNA REMOVAL/INSTALLATION.)
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)