AutoCodes – GMC – P1AFE GMC

P1AFE GMC Code - Drive Motor 2 Control Module Shutdown Performance

Quick Answer

The drive motor generator Power Inverter Control Module (PIM) contains two Motor Control Modules (MCMs) and the Hybrid Powertrain Control Module (HPCM). Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor Generator 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: P1AFE GMC indicates Drive Motor 2 Control Module Shutdown Performance.
Common causes: Common causes include Faulty Drive Motor Generator, Drive Motor Generator harness is open or shorted, Drive Motor Generator 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.

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Code Popularity 1,184

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1AFE GMC Description

The drive motor generator Power Inverter Control Module (PIM) contains two Motor Control Modules (MCMs) and the Hybrid Powertrain Control Module (HPCM). Each MCM operates its respective drive motor generator based upon HPCM commands. Each MCM controls the speed, direction and output torque of its respective drive motor generator through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors (IGBTs). Each drive motor generator operates utilizing 3 phase Alternating Current (AC) electricity. Each IGBT operates a single phase of the drive motor generator. Each phase is individually identified as U, V and W. Each MCM monitors the current of each phase in order to detect PIM overcurrent conditions.
When high voltage is enabled, each MCM supplies its respective drive motor generator with just enough current to energize the magnetic field even when no motor generator torque is required. The MCM monitors the phase current sensors for this minimal current to ensure the drive motor phase circuits are functioning properly.

OBDII Code P1AFE GMC - Drive Motor 2 Control Module Shutdown Performance - AutoCodes.com — P1AFE GMC Code - Drive Motor 2 Control Module Shutdown Performance

What does this mean?

What are the Possible Causes of the DTC P1AFE GMC?

Faulty Drive Motor Generator
Drive Motor Generator harness is open or shorted
Drive Motor Generator circuit poor electrical connection

How to Fix the DTC P1AFE 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 P1AFE 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.

Need more information about the P1AFE GMC code?

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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 P1AFE GMC Code

1. What are the common symptoms of OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

The common symptoms include reduced vehicle performance, difficulty starting the vehicle, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

Possible causes include issues with the drive motor 2 control module, wiring problems, software glitches, or a malfunctioning drive motor.

3. How can I diagnose the OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the drive motor control module and related wiring, and performing necessary tests to identify the root cause.

4. Can I still drive my GMC with OBDII code P1AFE for Drive Motor 2 Control Module Shutdown Performance?

It is not recommended to drive your GMC with this code present as it can lead to further damage and potential safety issues. Prompt diagnosis and repair are advised.

5. How can I repair OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

Repair methods may include replacing the drive motor 2 control module, repairing or replacing damaged wiring, updating software, and addressing any underlying drive motor issues.

6. Is it safe to reset the OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance without fixing the underlying issue?

Resetting the code without addressing the root cause can lead to recurring problems and potential safety risks. It is best to diagnose and repair the issue properly.

7. Can a DIY enthusiast fix OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

While some simple repairs like checking connections or replacing a fuse may be DIY-friendly, diagnosing and fixing complex issues related to the drive motor control module is best left to professionals.

8. How much does it typically cost to repair OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

Repair costs can vary depending on the exact cause of the issue, parts needed, and labor rates. It is recommended to obtain quotes from reputable mechanics or dealerships.

9. Will OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance affect the vehicle's fuel efficiency?

Yes, this code can affect the vehicle's fuel efficiency as it may lead to improper functioning of the drive motor, resulting in increased energy consumption.

10. How urgent is it to address OBDII code P1AFE for GMC Drive Motor 2 Control Module Shutdown Performance?

It is recommended to address this code promptly to prevent further damage to the drive motor system and ensure the safe operation of your GMC vehicle.