readXYZmagnitude() returns zero when GPS is on

[kbowerma]

I am trying to combine the GPSfeatures and accelerometer examples and only send latlon when the accelerator is activated. I can get the serial to print the accelerometer values for X, Y and Z but as soon as on turn GPSOn() then I my accelerometer only reads zero for all three access and the magnitude. Has anyone seen this before? Also does anyone know what pins are being used in the asset tracker?

thanks