AutoCodes – Chevrolet – P1A6F Chevrolet

P1A6F Chevrolet Code - Drive Motor No Crank At Restart

Quick Answer

The Generator Control Module also called the Starter/Generator Control Module is comprised of the following three control modules: the Hybrid/EV Powertrain Control Module 1, 14 V Power Module, and the Drive Motor Control Module. Common causes include Check/Replace Drive Belt, Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted. 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
P1A6F Chevrolet indicates Drive Motor No Crank At Restart.
Common causes
Common causes include Check/Replace Drive Belt, Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted.
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.
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Code Popularity 2,690
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 26, 2021
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Code P1A6F Chevrolet Description

The Generator Control Module also called the Starter/Generator Control Module is comprised of the following three control modules: the Hybrid/EV Powertrain Control Module 1, 14 V Power Module, and the Drive Motor Control Module. These three control modules are non-serviceable and are part of the Generator Control Module.
The eAssist hybrid system has the ability to crank and start the engine using two different methods. The first method is a conventional 12-volt system. On every initial start up the conventional 12-volt starter and 12-volt battery are used to crank and start the engine.
The second starting method uses the 86-volt hybrid/EV battery pack and the starter/generator also called the drive motor. The drive motor is a 3 phase AC induction machine. This device not only serves as an 86-volt AC generator but is also used to provide engine power assist and to start the engine when in auto-stop mode. If the system is in the auto-stop mode and fails to restart with the drive motor, the 12-volt conventional starter will automatically be engaged to start the engine.
The Diagnostic Trouble Code (DTC) will be set when the Hybrid/EV Powertrain Control Module 1 detects that an autostart failed to take place successfully.
OBDII Code P1A6F Chevrolet - Drive Motor No Crank At Restart - AutoCodes.com
P1A6F Chevrolet Code - Drive Motor No Crank At Restart

What are the Possible Causes of the DTC P1A6F Chevrolet?

  • Check/Replace Drive Belt
  • Faulty Starter/Generator Control Module
  • Starter/Generator Control Module harness is open or shorted
  • Starter/Generator Control Module circuit poor electrical connection

How to Fix the DTC P1A6F Chevrolet?

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 P1A6F Chevrolet 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1A6F Chevrolet Code

1. What are the common symptoms of OBDII code P1A6F in a Chevrolet indicating Drive Motor No Crank At Restart?

Symptoms may include difficulty starting the vehicle, intermittent loss of power, and the vehicle not cranking at restart.

2. What are the possible causes of OBDII code P1A6F in a Chevrolet related to Drive Motor No Crank At Restart?

Common causes can include issues with the drive motor, malfunctioning sensors, wiring problems, or software glitches in the hybrid powertrain system.

3. How can I diagnose OBDII code P1A6F in a Chevrolet for Drive Motor No Crank At Restart?

Diagnosis typically involves using a diagnostic scanner to retrieve the fault code, checking the drive motor components for faults, inspecting wiring connections, and performing system tests.

4. Are there any DIY repair tips for resolving OBDII code P1A6F in a Chevrolet with Drive Motor No Crank At Restart?

DIY repair options may be limited due to the complexity of the hybrid powertrain system. It is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.

5. Can driving with OBDII code P1A6F in a Chevrolet indicating Drive Motor No Crank At Restart cause further damage to the vehicle?

Continuing to drive with this code present may lead to potential drivability issues, reduced fuel efficiency, or further damage to the hybrid powertrain components.

6. How much does it typically cost to repair OBDII code P1A6F in a Chevrolet related to Drive Motor No Crank At Restart?

Repair costs can vary depending on the exact cause of the issue, but it may involve replacing sensors, repairing wiring, or addressing drive motor problems. Costs can range from a few hundred to over a thousand dollars.

7. Is it safe to drive my Chevrolet with OBDII code P1A6F indicating Drive Motor No Crank At Restart?

It is not recommended to drive the vehicle with this code present, as it may lead to unpredictable behavior and potential safety hazards. It is best to have the issue diagnosed and repaired promptly.

8. Can a software update fix OBDII code P1A6F in a Chevrolet for Drive Motor No Crank At Restart?

In some cases, a software update provided by the manufacturer may address the issue. It is advisable to check with a Chevrolet dealership or authorized service center for any available updates.

9. How long does it typically take to repair OBDII code P1A6F in a Chevrolet for Drive Motor No Crank At Restart?

The repair time can vary depending on the exact cause of the issue and the availability of parts. It may take a few hours to a day or more to diagnose and fix the problem.

10. Will resetting the OBDII system clear the P1A6F code related to Drive Motor No Crank At Restart in a Chevrolet?

Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It is essential to diagnose and repair the root cause of the problem.

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