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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.