P151A GMC Code - Throttle Actuator Control Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module 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
- P151A GMC indicates Throttle Actuator Control Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Throttle Actuator Control (TAC) Module, Throttle Actuator Control Module harness is open or shorted, Throttle Actuator Control Module 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 P151A GMC Description
What are the Possible Causes of the DTC P151A GMC?
- Faulty Throttle Actuator Control (TAC) Module
- Throttle Actuator Control Module harness is open or shorted
- Throttle Actuator Control Module circuit poor electrical connection
How to Fix the DTC P151A 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 P151A 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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Information for Specific GMC Models
- P151A 2014 GMC Sierra — Throttle Actuator Control Signal Message Counter Incorrect
- P151A 2015 GMC Sierra — Throttle Actuator Control Signal Message Counter Incorrect
- P151A 2016 GMC Sierra — Throttle Actuator Control Signal Message Counter Incorrect
- P151A 2017 GMC Sierra — Throttle Actuator Control Signal Message Counter Incorrect
- P151A 2018 GMC Sierra — Throttle Actuator Control Signal Message Counter Incorrect
Frequently Asked Questions about P151A GMC Code
1. What are the common symptoms of OBDII code P151A in a GMC vehicle?
- Common symptoms include the Check Engine Light coming on, reduced engine power, and potential issues with acceleration.
2. What does the OBDII code P151A GMC indicate?
- The code indicates that there is a problem with the Throttle Actuator Control Signal Message Counter being incorrect.
3. What are the possible causes of OBDII code P151A in a GMC vehicle?
- Possible causes include a faulty throttle actuator, damaged wiring or connectors, a malfunctioning electronic throttle control system, or software issues.
4. How can I diagnose the OBDII code P151A in my GMC vehicle?
- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, checking the throttle actuator and related components for any visible damage, and testing the wiring and connectors for proper connectivity.
5. Can I still drive my GMC vehicle with OBDII code P151A present?
- It is not recommended to drive the vehicle with this code present, as it can lead to reduced engine power and potential safety hazards. It's best to address the issue promptly.
6. How can I repair OBDII code P151A in my GMC vehicle?
- Repair options may include replacing the throttle actuator, repairing damaged wiring or connectors, recalibrating the electronic throttle control system, or updating software as recommended by the manufacturer.
7. Will resetting the trouble codes make OBDII code P151A go away permanently?
- Simply resetting the trouble codes may temporarily clear the Check Engine Light, but if the underlying issue causing P151A is not addressed, the code is likely to return.
8. Are there any preventive measures to avoid OBDII code P151A in a GMC vehicle?
- Regularly inspecting and maintaining the throttle actuator and related components, as well as ensuring proper wiring connections, can help prevent issues that may trigger this code.
9. Is it necessary to take my GMC vehicle to a dealership for OBDII code P151A repair?
- While a dealership can provide specialized expertise, an experienced mechanic familiar with GMC vehicles should be able to diagnose and repair OBDII code P151A effectively.
10. Can OBDII code P151A cause permanent damage to the engine or other components?
- If left unresolved for an extended period, the issues causing code P151A can potentially lead to further damage to the engine or other related components. It's best to address the problem promptly.
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