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Mary HicksAug 3, 2025
What to do if the 'FLOW < 0.5 GPM' message appears on my Bosch Measuring Instruments?
- WwolfepaulaAug 3, 2025
If the 'FLOW < 0.5 GPM' message appears on the graphic LCD of your Bosch Measuring Instruments, it could be due to a restriction in the vehicle's T.O.C. system or transmission cooler lines. Try following the Flush Operation/Flow Test procedure. Also, check that the shop air supply is greater than 90 PSI and that the air supply hose is connected to the unit. If problems persist, perform a self-test. If the self-test fails, adjust the TransFlow internal pressure regulator.













