NO.5 VEHICLE POSITION DEVIATES FROM THE ROUTE MAP.

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 antenna feeder and car-navigation unit.

Diagnostic procedure

STEP

INSPECTION

ACTION

1
• Is any of the following after-market equipment installed?
- 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 require 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 devices 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.
• Diagnostic function is started.
• 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 function is 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 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 function is activated, the diagnostic function mode is reset.
• Turn the ignition switch to ON position.
• Diagnostic function is started.
• Inspect the "GPS Antenna" on the diagnosis screen.
• Is the "OK" indicated?
Yes
Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
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 GPS antenna connector (16-pin).
• 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 for continuity between the car-navigation unit wiring harness side connector terminal and the GPS antenna wiring harness side connector terminal.
• Is there continuity?
Yes
Inspect for short circuit in the wiring harness.
If there is a short circuit, repair or replace the suspect wiring harness.
If the wiring harness is OK, replace the car-navigation unit.
No
Repair or replace the suspect wiring harness.