Cummins
Cummins fault code
SPN 1133 / FMI 10
Cummins Fault Code 2159: Rapid Rise in Intake Manifold Temperature RBR
2159 on Cummins engines means: Rapid Rise in Intake Manifold Temperature RBR. The failure mode (FMI 10) is “abnormal rate of change”.
Code details
- Manufacturer
- Cummins
- Applies to
- Cummins QS-series electronic engines
- Fault code
- 2159
- J1939 SPN
- 1133
- FMI
- 10 — Abnormal rate of change
- QSK45/60/78 severity level
- QSK60: 1 • QSK78: 1
What to do next
- Read active and inactive codes with the OEM service tool and note the occurrence count.
- FMI 10 tells the shop the type of failure to test for: abnormal rate of change.
- 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.
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Related fault codes
Source: Cummins "Diagnostic Fault Codes For Cummins Engines", publication 80-1044 Rev 5/2013, page 25. Marked in the source as a CENSE fault code. See also OBD-II codes.