I highly doubt it, glow plugs and associated control unit only affect the starting.
When my problem originally started it did not have any fault codes and was not until a warning (actually 2 - DSC inactive and 4x4 inactive) came up on the dash with the 4x4, ABS & brake lights on that a code could be extracted.
I would think if there was something else wrong (eg a bad sensor), you should have an error code that can be read.