Here is the instruction show you guide on how to solve Fendt MT1100 tractor SCR system error. Pressure drop test failure. 
Preparations:
Fendt Fendias 2024
Code SA 00 SPN 4332 FMI 14
SCR system error. Pressure drop test failure.
Diagnosis and solution
Clear the error log.
Restart the engine module.
If the fault code shows again during the next driving cycle, check the following.
Note:
If the machine is started in cold conditions, ice in the DEF pressure line is possible.
Remove the DEF dosing valve and check the nozzle for obstruction.
Remove the DEF pressure line to check for obstruction and mechanical defects.
Change the DEF supply module main filter.
Change the DEF supply module backflow connector.
Check the DEF for contamination. If the DEF is bad, change the DEF.
Replace the DEF supply module. If the system is correct and the fault code is not active, the original DEF supply module is bad.
If you want more repair cases for Fendt tractor,please refer to Fendt Tractor Trouble Repair
