Cursor Constantly Leaves Road

Cursor constantly leaves road

Diagnostic Test: Yaw Rate and Car status
1. Check the GPS icon on the navigation picture.

Is the GPS icon white?

YES - Do the troubleshooting for GPS icon is white.

NO - Go to step 2.

2. Go into the Diagnostic mode and use the "Yaw Rate" diagnostic to check the yaw rate sensor.
3. Go into the Diagnostic mode and use the "Car Status" diagnostic to check the vehicle speed pulse.

Are (he yaw rate sensor and vehicle speed pulse OK?

YES - The problem may be normal. Check to see if the problem occurs in the same place in a known-good vehicle. If it does, the problem could be in the database. Go to step 4.

NO - If the problem is the yaw rate sensor, replace the navigation unit. If the problem is the vehicle speed pulse, troubleshoot the vehicle speed signal circuit. BLU/WHT wire for open or short. If OK, swap a known-good ECM/PCM. If the problem or symptom goes away, replace the original ECM/PCM.

4. Substitute a known-good navigation unit and check to see if the problem occurs in the same place.

Does the problem occur in the same place?

YES - The problem is in the database. Report the problem according to the Navigation System Owner's Manual under "Reporting Errors".

NO - Replace the navigation unit.