Share: X

Cruise Control Inoperative — Possible Fault Codes

Found 2 fault codes associated with cruise control inoperative. Codes are sorted by severity — check STOP ENGINE codes first.

SPN 191 FMI 16

Transmission Output Shaft Speed

Cummins ISX15 • Component: Transmission Output Speed Sensor (TOSS) • J1939

🟡 CHECK AT NEXT STOP

SPN 441 FMI 2

Cruise Control Switch Erratic

Volvo D13 • Component: Cruise Control Switch / Steering Column Switch Pack • J1939

🔵 INFO

⚠️ 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 cruise control inoperative based on SAE J1939/J1587 fault code definitions and OEM service documentation.