Navigation System - Incorrect Instructions
Group: 91Number: 00-09
Date: Dec. 5, 2000
Subject:
Navigation System, Instructs Driver to turn Before or After Designated Intersection.
Model(s):
TT Coupe, Roadster 2000, 2001
Condition
The navigation system instructs the driver to turn approx. two hundred feet before or after the designated intersection.
Production
Pulse number per wheel rotation specification for MQ350 transmissions changed to 7 after VIN: 8N_11017519.
Service
Condition may be caused by the adaptation specification for pulse number per wheel rotation initially set at 8 while the vehicle is equipped with the MQ350 transmission which has 7 pulses per wheel rotation.
A new 2000 Navigation Compact Disc (CD) will be sent to all customers who have been issued a 1999 Navigation (CD).
This 2000 Navigation CD is equipped with auto-calibration which compensates for different adaptation values for pulse number per wheel rotation.
If a customer with a vehicle produced prior to VIN: 8N_11017519 experiences this condition and has not received their new CD:
Re-adapt the pulse number per wheel rotation specification from 8 to 7 as follows:
- Connect the VAS 5051 Diagnostic tool.
- Switch ignition ON.
- From VAS 5051 Start-up screen, select "Vehicle self diagnosis".
- Select vehicle system "37-Navigation" (use scroll bar at right if necessary).
- Select diagnosis function "10-Adaption". (arrow).
- Input "2" for "channel 2" on keypad.
- Press "Q" on keypad to confirm.
- Bar graph shows current pulse number for wheel rotation "8".
- Press keyboard. (arrow).
- Input adaption value "7" for channel "2" pulse number per wheel rotation on keypad.
- Press "Q" on keypad to confirm.
- Bar graph shows current pulse number for wheel rotation "7".
- Press save.(arrow).
- Press accept (arrow) to save channel 2 value.
- Screen shows channel 2 value 7 saved (arrow).
- Select "Go to" on navigation bar, then select "Exit".
- Switch ignition OFF.
- Remove VAS 5051 Diagnostic tool.
When procedure applies to vehicles within the New Vehicle Limited Warranty, use the table shown.