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Cummins fault code7125 · Transmission Communications Failure Idle Torque Limit

Transmission Communications Failure Idle Torque Limit - Condition Exists

Fault code7125 Cummins fault code as shown in INSITE / CaltermSPN7827 · Transmission Communications Failure Idle Torque LimitFMI31 Condition existsOBD codenone (J1939 only)LampRed STOP lampCummins textTransmission Communications Failure Idle Torque Limit - Condition ExistsFailure modeCondition Exists

What Cummins code 7125 means

This is not an electrical fault on a sensor. FMI 31 means the ECM has detected that the named condition for Transmission Communications Failure Idle Torque Limit is true. The fault code itself is the message; the fix is to find out why the ECM believes the condition exists.

It turns on the red STOP ENGINE lamp. Cummins classes this as a fault that can damage the engine or aftertreatment if ignored: stop as soon as it is safe to do so. Many calibrations also apply an engine-protection derate while the fault is active.

On a generic J1939 scan tool, or on the dash of a Freightliner, Kenworth, Peterbilt, International or Volvo chassis, the same fault is shown as SPN 7827 FMI 31 rather than as Cummins code 7125. Cummins INSITE and Calterm show the Cummins number, the SPN / FMI pair and the lamp together.

Fault code 7125 is defined in the fault tables of the Cummins calibrations we have analysed, so it is a real, current code rather than a legacy number.

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Cummins ECFG / E2M definitions for CM550, CM552, CM554, CM570, CM800, CM850, CM870, CM871 and more: the fault table, torque, fuelling, boost, EGR, DPF and SCR maps, ready for Calterm or WinOLS. Instant download.

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Other Cummins codes on SPN 7827 Transmission Communications Failure Idle Torque Limit

Code 7125 is the only Cummins fault code assigned to SPN 7827.

All codes grouped by SPN →

Related Cummins fault codes

7121 · SPN 7581 FMI 3Engine Gaseous Fuel Pressure Regulator Intake Pressure 7122 · SPN 7581 FMI 4Engine Gaseous Fuel Pressure Regulator Intake Pressure 7123 · SPN 4331 FMI 17Aftertreatment 1 Diesel Exhaust Fluid Actual Dosing Quantity 7124 · SPN 4384 FMI 17Aftertreatment 2 Diesel Exhaust Fluid Actual Dosing Quantity 7126 · SPN 7829 FMI 31Transmission Failure Mode Idle Torque Limit 7127 · SPN 2659 FMI 15Engine Exhaust Gas Recirculation Mass Flow Rate 7128 · SPN 5023 FMI 2ACC usage demand 7129 · SPN 2629 FMI 3Engine Turbocharger Compressor Outlet Temperature

J1939 failure mode identifiers (FMI)

FMI 31 is highlighted. The FMI is the second half of every J1939 fault and tells you how the component failed; the SPN tells you which component.

FMI	Meaning (SAE J1939-73)
0	Data valid but above normal operational range - most severe level
1	Data valid but below normal operational range - most severe level
2	Data erratic, intermittent or incorrect
3	Voltage above normal, or shorted to high source
4	Voltage below normal, or shorted to low source
5	Current below normal or open circuit
6	Current above normal or grounded circuit
7	Mechanical system not responding or out of adjustment
8	Abnormal frequency, pulse width or period
9	Abnormal update rate
10	Abnormal rate of change
11	Root cause not known
12	Bad intelligent device or component
13	Out of calibration
14	Special instructions
15	Data valid but above normal operating range - least severe level
16	Data valid but above normal operating range - moderately severe level
17	Data valid but below normal operating range - least severe level
18	Data valid but below normal operating range - moderately severe level
19	Received network data in error
20	Data drifted high
21	Data drifted low
22	Reserved for SAE assignment
23	Reserved for SAE assignment
24	Reserved for SAE assignment
25	Reserved for SAE assignment
26	Reserved for SAE assignment
27	Reserved for SAE assignment
28	Reserved for SAE assignment
29	Reserved for SAE assignment
30	Reserved for SAE assignment
31	Condition exists

Questions about code 7125

What does Cummins fault code 7125 mean?

Cummins 7125 is "Transmission Communications Failure Idle Torque Limit - Condition Exists". It maps to SPN 7827 FMI 31. This is not an electrical fault on a sensor. FMI 31 means the ECM has detected that the named condition for Transmission Communications Failure Idle Torque Limit is true. The fault code itself is the message; the fix is to find out why the ECM believes the

Which lamp does fault code 7125 turn on?

Red STOP lamp: It turns on the red STOP ENGINE lamp. Cummins classes this as a fault that can damage the engine or aftertreatment if ignored: stop as soon as it is safe to do so. Many calibrations also apply an engine-protection derate while the fault is active.

How do I clear or permanently delete Cummins code 7125?

An active code goes inactive on its own once the condition is gone; the inactive record stays in the ECM fault history until it is cleared with Cummins INSITE (or a J1939 tool that supports the DM3 / DM11 clear). If the code keeps coming back because the part is gone, disconnected or not worth repairing, the lasting fix is to disable fault 7125 in the calibration: upload your .xcal to the ECFG Superstore file service, custom DTC delete from $150 (up to 30 codes), full DPF / EGR / SCR delete $500, and flash the returned file with Calterm or INSITE.

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