International SA 33 SPN 115 FMI 2: Phase missing fault/alternator fault.
SA 33 SPN 115 FMI 2 on International / Navistar trucks means: Phase missing fault/alternator fault.. The failure mode (FMI 2) is “data erratic, intermittent or incorrect”.
Code details
- Manufacturer
- International (Navistar)
- Applies to
- International / Navistar body controller (ESC) and multiplexed modules
- Fault code
- SA 33 SPN 115 FMI 2
- J1939 SPN
- 115
- FMI
- 2 — Data erratic, intermittent or incorrect
- Reporting module
- Body Controller (source address 33)
- Component / signal
- Alternator Current
- Truck models in source
- 3200, 4100, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, BE 200, CE Bus, CXT, DuraStar, LoneStar, MXT, ProStar, RXT, TranStar, WorkStar
Cause and when it sets
Cause: One or more of the three phase wire from the Dynamic Alternator to the Power Pack E module may be disconnected.
One or more of the three phase wires from the alternator is disconnected. The Power Pack system is shutdown and requires an ignition cycle.
What to do next
- Read active and inactive codes with the OEM service tool (Diamond Logic Builder can clear previously active codes) and note the occurrence count.
- FMI 2 tells the shop the type of failure to test for: data erratic, intermittent or incorrect.
- Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.
Get this code diagnosed
Send one request and nearby diesel shops and mobile mechanics can quote the repair.
Run your own truck?
Log maintenance, track fault codes, and get roadside breakdown dispatch.
$39.99/mo
Cancel anytime
More ways Repairius keeps vehicles running
Tools for owner-operators, shops, fleets and drivers — all in one place.
Auto & Truck Shop OS
From $99.99/mo- Work orders & job management
- Digital vehicle inspections
- Parts lookup & inventory
- Estimates, invoices & payments
Fleet Maintenance
From $129/mo- Preventive maintenance schedules
- Driver DVIRs & defect reports
- Safety & compliance clearance
- Preferred shop dispatch & approvals
My Garage
100% free- Digital glovebox for your vehicles
- Maintenance history & reminders
- Recall alerts
- Book verified local shops
Owner-Operator? Track this truck for $39.99/mo
StartFix these trucks? Get your shop listed free·Find a diesel shop
Source: Navistar service manual S08327 "Body Controller Diagnostic Trouble Codes" (10/22/2009), page 9. See also OBD-II codes.
