CAT 3126E Fault Code: 71-14 PID: Flash Code 47 SPN: FMI: PTO Shutdown

Posted by PerDiezel Solutions on January 12, 2026

The idle shutdown timer is intended to improve fuel economy by limiting idling time. The idle shutdown timer is a customer specified parameter that may be programmed for any period from 3 to 1440 minutes.

The timer is activated when all of the following conditions are met regardless of the position of the parking brake:

•The vehicle speed is zero.
•The engine is not in cold mode or dedicated PTO mode.
•The engine is not under load.

The timer can be reset by moving the vehicle or the timer can be reset by quickly depressing the accelerator pedal and releasing the accelerator pedal. The check engine lamp will begin to rapidly flash 90 seconds before the programmed time expires. During this 90 second time period, the following conditions can disable the timer:

•The clutch pedal is depressed.
•The service brake pedal is depressed.

Possible Causes:

1) ECM not programmed properly
2) Clutch or Brake pedal/sensor failure
3) Wiring for clutch and/or brake sensor position failure
4) Vehicle speed sensor failure (Speedometer not reading correctly)
5) PTO Switch or harness failure

CAT 3126E Fault Code: 71-01 PID: Flash Code 47 SPN: FMI: Idle Shutdown Occurrence

CAT 3126E Fault Code: 100-11 PID: Flash Code 46 SPN: 100 FMI: 18 Very Low Oil Pressure

CAT 3126E Fault Code: 128-04 PID: Flash Code 44 SPN: FMI: Secondary Fuel level voltage low

CAT 3126E Fault Code: 128-03 PID: Flash Code 44 SPN: FMI: Secondary Fuel Level voltage high

CAT 3126E Fault Code: 22-13 PID: Flash Code 42 SPN: 637 FMI: 13 Engine Speed Signal Calibration Not Performed

CAT 3126E Fault Code: 22-11 PID: Flash Code 42 SPN: 637 FMI: 11 Primary to Secondary Engine Speed Signal Calibration

WARNING!