NO.5 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP. [CAR-NAVIGATION SYSTEM]
id0903e8802100
5 |
Vehicle position deviates from the route map. |
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POSSIBLE CAUSE
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• 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.
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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• Is any of the following after-market equipment installed? (Inspect especially near the GPS antenna.)
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Yes
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Go to the next step.
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No
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Go to Step 3.
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2
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• Remove the after-market equipment.
• Drive the vehicle without any obstacles.
• Does the vehicle indicator follow the steering wheel direction?
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Yes
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System is normal.
The after-market electrical device might be interrupting to GPS reception.
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No
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Go to the next step.
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3
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• 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
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Yes
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Go to the next step.
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No
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Go to Step 8.
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4
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• 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?
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Yes
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Go to the next step.
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No
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Go to Step 6.
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5
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• Drive the vehicle and turn the steering wheel to the left or right.
• Does the vehicle indicator follow the steering direction?
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Yes
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The system is normal.
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No
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Replace the car-navigation unit.
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6
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• Turn the ignition switch to LOCK position,
• Inspect the connection of car-navigation unit connector (24-pin).
• Is the connector securely connected?
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Yes
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Go to the next step.
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No
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Securely connect the car-navigation unit connector.
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7
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• 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?
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Yes
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Inspect for vehicle speed signal circuit (between instrument cluster and car-navigation unit)
Repair or replace if necessary.
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No
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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.
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8
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• Start diagnostic function and indicate “Vehicle Signal” check screen.
• Drive the vehicle.
• Check the “GPS Antenna” on the diagnosis screen.
• Is “OK” indicated?
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Yes
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Go to Step 6.
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No
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Go to the next step.
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9
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• 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?
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Yes
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Go to the next step.
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No
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Securely connect the suspect connector.
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10
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• 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?
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Yes
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Go to the next step.
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No
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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.
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11
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• Replace the GPS antenna.
• Does the vehicle position deviate from route map continuously?
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Yes
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Replace the car-navigation unit.
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No
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Troubleshooting completed.
(GPS antenna malfunction)
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