P1AFE Buick 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 Buick 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.
Code P1AFE Buick Description
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.
What are the Possible Causes of the DTC P1AFE Buick?
- 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 Buick?
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 Buick 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 P1AFE Buick Code
1. What does the OBDII code P1AFE mean on a Buick?
P1AFE indicates an issue with the Drive Motor 2 Control Module, specifically related to its shutdown performance.
2. What are the common symptoms of the P1AFE code on a Buick?
Symptoms may include the check engine light turning on, reduced vehicle performance, limited hybrid or EV functionality, and potential drivability issues.
3. What causes the P1AFE code to appear?
Common causes include a malfunctioning Drive Motor 2 Control Module, wiring or electrical connection issues, or software problems in the hybrid/EV powertrain control system.
4. Can I drive my Buick with the P1AFE code?
It is not recommended to drive with this code, as it may lead to reduced performance or further damage to the hybrid/EV system.
5. How do you diagnose the P1AFE code on a Buick?
Diagnosis involves scanning the vehicle with an OBDII tool, inspecting wiring and connections related to Drive Motor 2, and testing the control module for proper operation.
6. How do you fix the P1AFE code on a Buick?
Repairs may include repairing or replacing damaged wiring, reprogramming or replacing the Drive Motor 2 Control Module, or updating the vehicle's software.
7. Is the P1AFE code specific to hybrid or electric Buicks?
Yes, this code is specific to Buicks equipped with hybrid or electric drivetrains that use multiple drive motors.
8. How much does it cost to fix the P1AFE code on a Buick?
Repair costs vary depending on the issue but can range from $150 for wiring repairs to over $1,000 if the control module needs replacement.
9. Can a software update fix the P1AFE code?
In some cases, a software update from the dealership may resolve the issue if the problem is related to programming.
10. Do I need a professional mechanic to fix the P1AFE code?
Due to the complexity of hybrid/EV systems, it is recommended to have a qualified technician diagnose and repair this issue.
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