Cummins ISB6.7 CM2350 (2013-17) Fault Code: 177 PID: SPN: 3464 FMI: 7 Electronic Throttle Control Actuator- Mechanical System not Responding or out of Adjustment

Cummins ISB6.7 CM2350 (2013-17) Fault Code: 177 PID: SPN: 3464 FMI: 7 Electronic Throttle Control Actuator- Mechanical System not Responding or out of Adjustment

Circuit Description
The engine control module (ECM) controls the engine intake air throttle actuator. The ECM can open and close the throttle based on the operating condtions in order to regulate air flow to the engine.

Component Location
The engine intake air throttle actuator is mounted in the piping between the charge air cooler and intake manifold.

Conditions for Running the Diagnostics
One part runs when the keyswitch is initially turned ON before the engine is started

Conditions for Setting the Fault Codes
The Engine Control Module (ECM) detected the engine intake air throttle actuator failed the autozero span check.

Action Taken When the Fault Code is Active
The ECM illuminates the red STOP ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.

Engine intake air throttle actuation will be disabled. The engine intake air throttle will default to the open position.

1)Exhaust Gas Recirculation (EGR) valve operation will be disabled.
2)Engine torque will be reduced if the engine is operated for an extended period of time with this fault active.

Conditions for Clearing the Fault Code
1)Start and idle the engine for 1 minute
2)Turn the key switch OFF and allow the ECM to completely powerdown.
3)Turn the key switch ON.
4)The fault code status displayed by INSITE? electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
5)The ECM will turn off the red STOP ENGINE lamp immediately after the diagnostic runs and passes.
6)For On-Board Diagnostics (OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (MIL) after three consecutive trips where the diagnostic runs and passes.
7)The Reset All Faults command in INSITE? electronic service tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.

Possible causes:
1) A malfunctioning engine intake air throttle actuator