P2110 GMC Code - Throttle Actuator Control System - Forced Limited Engine Speed
Quick Answer
The Throttle Actuator Control (TAC) system uses vehicle electronics and components to calculate and control the position of the throttle blade. Common causes include Faulty Throttle Actuator Control (TAC), Throttle Actuator Control (TAC) harness is open or shorted, Throttle Actuator Control (TAC) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2110 GMC indicates Throttle Actuator Control System - Forced Limited Engine Speed.
- Common causes
- Common causes include Faulty Throttle Actuator Control (TAC), Throttle Actuator Control (TAC) harness is open or shorted, Throttle Actuator Control (TAC) circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2110 GMC Description
The TAC system components include, but are not limited to the following:
- The accelerator pedal position (APP) sensors
- The throttle body
- The Powertrain Control Module (PCM)
Each of these components interface together to ensure accurate calculations and control of the throttle position (TP).
Throttle Body Assembly
The throttle body for the throttle actuator control (TAC) system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the throttle position (TP) sensor. The TP sensor is mounted in the throttle body assembly. The TP sensor is 2 individual TP sensors within the throttle body assembly. Two separate signal, low reference, and 5-volt reference circuits are used to connect the TP sensors and the Powertrain Control Module (PCM). TP sensor 2 signal voltage increases as the throttle opens. TP sensor 1 signal voltage decreases as the throttle opens.
What are the Possible Causes of the DTC P2110 GMC?
- Faulty Throttle Actuator Control (TAC)
- Throttle Actuator Control (TAC) harness is open or shorted
- Throttle Actuator Control (TAC) circuit poor electrical connection
How to Fix the DTC P2110 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2110 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2110 GMC Code
1. What does the OBDII code P2110 mean for a GMC vehicle?
P2110 indicates that the Engine Control Module (ECM) has activated the "Forced Limited Engine Speed" mode due to a problem with the throttle actuator control system.
2. What are the common symptoms of code P2110 in a GMC?
Symptoms include reduced engine power, limited acceleration, poor throttle response, and the activation of the "Reduced Power" warning light on the dashboard.
3. What causes the P2110 code to appear in GMC vehicles?
Common causes include a malfunctioning throttle body, wiring issues, a faulty throttle position sensor, or problems with the ECM.
4. Can I drive my GMC if the P2110 code is active?
Driving is possible but not advisable, as the vehicle will operate in a reduced power mode with limited speed and acceleration, potentially causing unsafe driving conditions.
5. How do I diagnose the P2110 code in a GMC?
Diagnosis involves inspecting the throttle body, wiring harness, throttle position sensor, and checking the ECM for faults using an advanced scan tool.
6. How do you fix the P2110 code on a GMC?
Repairs may include cleaning or replacing the throttle body, repairing damaged wiring, replacing the throttle position sensor, or reprogramming the ECM.
7. Is the P2110 code related to the "Limp Mode" in GMC vehicles?
Yes, when the P2110 code is triggered, the vehicle enters a "Limp Mode" with reduced engine power to protect critical components.
8. How much does it cost to repair the P2110 code on a GMC?
Repair costs vary depending on the root cause but typically range from $200 to $800, including parts and labor.
9. Can a dirty throttle body cause the P2110 code in GMC vehicles?
Yes, a dirty or clogged throttle body can interfere with proper airflow and throttle operation, triggering the P2110 code.
10. Will clearing the P2110 code with a scan tool fix the issue?
Clearing the code may temporarily remove the error, but the underlying problem must be addressed to prevent the code from returning.
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