P06AF GMC Code - Torque Management System Forced Engine Shutdown
Quick Answer
To improve shift feel, the Transmission Control Module (TCM) may request that the Engine Control Module (ECM) reduce engine torque during shift events. Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module software update. 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
- P06AF GMC indicates Torque Management System Forced Engine Shutdown.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Faulty Transmission Control Module (TCM), Engine Control Module software update.
- 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 P06AF GMC Description
The torque reduction request is sent to the ECM through a communication network called the controller area network (CAN). Two circuits are used to communicate CAN data between the ECM and TCM.
A fault in the CAN will not cause the ECM to set the Diagnostic Trouble Codes (DTC). If a CAN fault occurs, other DTCs will set before this code.
The ECM set the OBDII code when the TCM receives a torque reduction failure message from the ECM.
What are the Possible Causes of the DTC P06AF GMC?
- Faulty Engine Control Module (ECM)
- Faulty Transmission Control Module (TCM)
- Engine Control Module software update
- Transmission Control Module software update
- Engine Control Module harness is open or shorted
- Engine Control Module circuit poor electrical connection
How to Fix the DTC P06AF 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 P06AF 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
- P06AF 2014 GMC Sierra_c15_2wd — Torque Management System Performance Forced Engine Shutdown
- P06AF 2015 GMC Sierra — Torque Management System Performance Forced Engine Shutdown
- P06AF 2016 GMC Sierra — Torque Management System Performance Forced Engine Shutdown
- P06AF 2017 GMC Sierra — Torque Management System Performance Forced Engine Shutdown
- P06AF 2018 GMC Sierra — Torque Management System Performance Forced Engine Shutdown
Frequently Asked Questions about P06AF GMC Code
1. What are the common symptoms of OBDII code P06AF in a GMC vehicle?
- Common symptoms include engine stalling or shutting down unexpectedly while driving, loss of power, and the illumination of the Check Engine Light.
2. What does the OBDII code P06AF GMC indicate?
- This code indicates a Torque Management System Forced Engine Shutdown, which means the vehicle's computer has detected an issue that requires shutting down the engine to prevent damage.
3. What are the possible causes of the Torque Management System Forced Engine Shutdown code P06AF in a GMC?
- Potential causes include issues with the throttle position sensor, wiring or connection problems, software glitches in the engine control module, or a faulty torque management system component.
4. How can I diagnose the OBDII code P06AF in my GMC vehicle?
- Diagnosing this code typically involves using a professional OBDII scanner to retrieve the code, checking for any related codes, inspecting the throttle position sensor and its wiring, and performing a thorough visual inspection of the engine components.
5. Can I continue driving my GMC vehicle with the P06AF code present?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage or safety hazards due to unexpected engine shutdowns.
6. How can I repair the Torque Management System Forced Engine Shutdown code in my GMC?
- Repairs may involve replacing the throttle position sensor, repairing any damaged wiring or connections, updating the engine control module software, or replacing faulty torque management system components.
7. Will resetting the Check Engine Light fix the P06AF code in my GMC?
- Simply resetting the Check Engine Light will not fix the underlying issue causing the P06AF code. It is important to diagnose and address the root cause of the problem to prevent further occurrences.
8. Is the OBDII code P06AF GMC a common issue in certain GMC vehicle models?
- While the P06AF code may not be extremely common, it has been reported in various GMC models, especially those equipped with advanced engine management systems.
9. Can a DIY enthusiast fix the P06AF code issue in a GMC, or is professional help recommended?
- Depending on the specific cause of the code, some repairs related to the P06AF issue may be possible for experienced DIY enthusiasts. However, complex diagnostic procedures and component replacements may require professional assistance.
10. How can I prevent the OBDII code P06AF from recurring in my GMC vehicle?
- Regular maintenance, such as checking and cleaning throttle components, ensuring proper wiring connections, and promptly addressing any warning signs, can help prevent the recurrence of the P06AF code in your GMC.
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