Pump Not Priming — Possible Fault Codes
Found 1 fault code associated with pump not priming. Codes are sorted by severity — check STOP ENGINE codes first.
SPN 4375 FMI 7
DEF Pump Module Failure
Volvo D13 • Component: DEF Pump Assembly • J1939
⚠️ Diagnostic Note:
Symptoms can have multiple root causes. Always verify with a diagnostic scan tool before replacing parts. The fault codes listed above are possible matches for pump not priming based on SAE J1939/J1587 fault code definitions and OEM service documentation.