GPS troubleshooting
Electrical
Is the transmitter signal of the GPS sensor connected to the receiver pin of serial
interface 2 of the DDU 8?
Is the GPS sensor powered up?
Does the GPS sensor deliver RS232 signal levels?
Interface
Do the baud rates of the GPS sensor and the DDU 8 match?
Is the GPS sensor set up for 8N1 transmission parameters?
Is the GPS sensor set up for NMEA messages?
Are the GGA, VTG, RMC messages activated?
Is Software Upgrade 2 activated in the DDU 8?
GPS sensor start‐up
Does the GPS sensor ‘view’ the sky?
Did the GPS sensor complete its initial start‐up procedure? This may take up to
20 min.
A correct reception is indicated when ‘gps_fix’ is showing ‘3D Fix’.
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DDU 8 Manual
Bosch Motorsport