If these fault codes are active, this means the engine performance is already reduced (power derate) and possibly the vehicle speed is also limited.īoth are information-only fault codes which appear when the ECM detects active critical fault codes related to engine operation. Malfunctioning accelerator pedal or lever position sensor.Fault Code: 3712: Aftertreatment SCR Operator Inducement – Data Valid But Above Normal Operating Range – Most Severe Level SPN: 5246 FMI: 0/0 Fault Code: 3714: Engine Protection Torque Derate – Condition ExistsĬummins Fault codes 37. Possible causes of this fault code include:

It is necessary to use the 'Reset All Faults' command in the recommended Cummins® electronic service tool or equivalent to clear this fault.

The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.The fault code status displayed by the recommended Cummins® electronic service tool or equivalent will change to INACTIVE immediately after the diagnostic runs and passes.

To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.

The ECM illuminates the amber CHECK ENGINE lamp immediately when the diagnostic runs and fails.

The Engine Control Module (ECM) detected Low voltage on both idle and off-idle signals.Īction Taken When the Fault Code is Active: This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running. The accelerator pedal or lever position sensor is mounted to the accelerator pedal assembly.

The idle validation switch return is a shared return with other original equipment manufacturer (OEM) cab switches. The switch is adjusted at the factory to switch from on-idle to off-idle at the correct accelerator pedal position.

The accelerator pedal or lever idle validation switch is used by the electronic control module (ECM) to indicate when the accelerator pedal is released (on-idle) or depressed (off-idle). REASON: No voltage detected simultaneously on both the idle validation off-idle and idle-signal pins of the OEM interface harness. Accelerator Pedal or Lever Idle Validation Switch Circuit - Voltage Below Normal or Shorted to Low SourceĪccelerator Pedal or Lever Idle Validation Circuit

Cummins insite fault codes