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Cummins Engines · 595
Turbocharger 1 Speed High
What this code means
Turbocharger 1 Speed - Data Valid But Above Normal Operating Range - Moderately Severe Level
Applies to: all electronic engines.
Possible causes / checks (from the source)
SPN 103, FMI 16; Lamp: Amber
Need the part?
If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (595), machine model and serial number — we quote genuine and OEM replacement parts for export.
Ask for the replacement part on WhatsAppSource: Cummins Engine Fault Code List (Scribd). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.