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 the wiring harness (vehicle speed signal related).
•  Car-navigation unit malfunction.
•  Poor connection of the GPS antenna connector, terminal damage
•  GPS antenna malfunction.
•  Open or short circuit in feeder line between GPS antenna and car-navigation unit.
•  Poor connection of the car-navigation unit connector, terminal damage

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.
Note
•  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 the 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
•  This procedure requires an assistant.
•  Start the diagnostic function.
•  Drive the vehicle.
•  Check the "Speed" on the diagnosis screen.
•  Does the "Speed" change according to the vehicle speed?
Note
•  If the engine is started after diagnostic functions activated, the diagnostic function mode is reset.
Yes
Go to the next step.
No
Go to Step 6.
5
Caution
•  This procedure requires an assistant.
•  Drive the vehicle and turn the steering wheel to the left and/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 buildings lot
No
Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
6
•  Turn the ignition switch to the LOCK position.
•  Remove the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
•  Inspect the connection of the car-navigation unit connector (16-pin).
•  Is the connector securely connected?
Yes
Go to the next step.
No
Securely connect the car-navigation unit connector (16-pin).
7
•  Disconnect the car-navigation unit connector (16-pin).
•  Inspect both car-navigation unit connector and wiring harness-side connector terminal H for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are all the pins normal?
Yes
Inspect for vehicle speed signal input circuit.
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
Note
•  If the engine is started after diagnostic functions activated, the diagnostic function mode is reset.
•  Turn the ignition switch to ON position.
•  Start the diagnostic function.
•  Inspect the "GPS antenna" on diagnosis screen.
•  Is the “OK“ indicated?
Yes
Replace the car-navigation unit.
No
Go to the next step.
9
•  Turn the ignition switch to the LOCK position.
•  Remove the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
•  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 GPS antenna connector (2-pin).
10
•  Disconnect the GPS antenna connector.
•  Inspect both GPS antenna connector and car-navigation unit connector for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are all the pins normal?
Yes
Go to the next step.
No
If the wiring harness-side connector is wrong:
•  Repair or replace the suspect wiring harness.
If the car-navigation unit side connector is wrong:
•  Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
11
•  Inspect the continuity between the car-navigation unit wiring harness-side connector terminal and GPS antenna wiring harness side connector terminal.
•  Is there continuity?
Yes
Replace the car-navigation unit.
No
Repair or replace the wiring harness.