Internal failure of the ECM throttle actuator driver circuit or its self-check logic; Corroded, spread, or backed-out terminals in the throttle actuator wiring harness connector; Chafed or open wiring between the ECM and the electronic throttle body; A failing electronic throttle body actuator motor that draws abnormal current and stresses the ECM driver; Voltage supply or ground problems at the ECM that disturb the internal actuator controller; Software or calibration fault in the ECM requiring a reflash or replacement; Aftermarket electronic throttle controllers or piggyback modules interfering with actuator signals

DTC codes / P06xx · Computer and output circuits / P061F

P061FInternal Control Module Throttle Actuator Controller Performance

P061F means the engine control module (ECM) has detected an internal performance fault within its own throttle actuator control circuitry, not necessarily a failure of the throttle body itself. The ECM monitors the command and feedback signals for the electronic throttle actuator and sets this code when the internal controller cannot deliver or verify the expected actuator response.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaComputer and output circuits

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms
Reduced engine power or limp mode triggered by the ECM as a protective strategy
A throttle pedal that feels unresponsive or delayed compared with normal operation
Rough or erratic idle quality because the actuator cannot hold a steady throttle plate position
Intermittent stalling or difficulty maintaining speed on inclines
A stored pending or history code that returns after clearing even when the throttle body appears clean

Common causes, most likely first

Internal failure of the ECM throttle actuator driver circuit or its self-check logic
Corroded, spread, or backed-out terminals in the throttle actuator wiring harness connector
Chafed or open wiring between the ECM and the electronic throttle body
A failing electronic throttle body actuator motor that draws abnormal current and stresses the ECM driver
Voltage supply or ground problems at the ECM that disturb the internal actuator controller
Software or calibration fault in the ECM requiring a reflash or replacement
Aftermarket electronic throttle controllers or piggyback modules interfering with actuator signals

How to diagnose and fix it

Scan all modules and record freeze-frame data for P061F before clearing any codes
Inspect the throttle body connector and ECM connectors for corrosion, spread terminals, and pushed pins
Perform a voltage drop test on the actuator power and ground circuits while commanding throttle movement with a scan tool
Check for technical service bulletins and ECM calibration updates that address throttle actuator controller performance
Substitute a known-good electronic throttle body only if actuator current or feedback tests point to the motor
Verify ECM power and ground integrity, then reflash or replace the ECM if internal driver faults persist
Clear codes, perform a throttle relearn or idle learn procedure, and road test through several drive cycles

Why the ECM blames itself first

P061F is an internal ECM code, so replacing the throttle body before testing the actuator driver circuit often wastes money and does not fix the fault.
A weak or failing battery can set this code because the ECM self-test runs during low-voltage cranking and misreads its own actuator controller performance.
Aftermarket throttle controllers and pedal boosters frequently cause P061F by altering the actuator command signal in ways the ECM self-check does not expect.
The code can be stored intermittently from a single glitch, so a history code that never returns after clearing may not justify any parts replacement.
A poor ground at the ECM can mimic an internal actuator controller failure, so ground voltage drop testing belongs before any module replacement.

Can I keep driving with P061F?

If the vehicle is in limp mode or the throttle response is erratic, drive only to a safe location or a repair shop and avoid highway speeds. A P061F that appears with no drivability change can be driven cautiously for diagnosis, but repeated limp-mode events mean the vehicle should not be trusted for normal use.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.