P2110 trouble code definition
Throttle Actuator Control System Forced Limited RPM
What the P2110 code means
P2110 is an OBD-II generic code for the engine control module (ECM) detecting a major failure in the throttle actuator control (TAC) system causing the ECM to go into failure mode and limiting the engine to a specified RPM limit.
What causes the P2110 code?
The engine control module (ECM) is in failure management mode from a major failure in the throttle actuator control (TAC) system and sets that code and code P2110 for limiting the RPM’s.
The throttle actuator control (TAC) system failure is the cause and will have set other failure codes.
What are the symptoms of the P2110 code?
The Check Engine Light will be illuminated and the code is set in ECM memory as a fault along with the failure that caused the ECU to go into failure mode.
The engine will have limited acceleration and slow throttle response and RPM will be limited.
Symptoms that are encountered may vary because it depends on the issue that caused the failure mode.
How does a mechanic diagnose the P2110 code?
Scans codes and documents the code in the ECM to look at the freeze frame data for failure
Diagnoses all codes as per the manufacturer's pinpoint tests
Diagnoses and repairs codes other than P2110 first, there may be other codes to other systems that caused the failure mode to be activated within the ECM.
Common mistakes when diagnosing the P2110 code
Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired
Failing to clear the ECM codes after the codes are fixed
Diagnosing code P2110 before diagnosing other throttle control system codes first
How serious is the P2110 code?
Code P2110 is an indication that the ECM is in failure management mode and has limited the RPM the engine can go since the throttle control actuator system has a failure. The problem may be in another system as well causing a problem.
What repairs can fix the P2110 code?
Diagnosing and repairing other codes for the TAC received first before addressing code P2110
Additional comments for consideration regarding the P2110 code
Code P2110 is an informational code most of the time to alert you to another failure that caused the failure mode to be engaged and caused the RPM limited issue.
Need help with a P2110 code?
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