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Code P1AFE

Quick reference

P1AFE at a glance

Plain-language meaning
This code means there's a problem with the car's electric drive system. It's like when your toy car's remote control stops working because of a problem with the battery or wires.
Urgency
High – This issue can lead to reduced vehicle performance and potential safety risks.
Difficulty
Difficult
System
Electric Drive System Issue
Tools mentioned
OBD-II scanner, Multimeter, Specialized inverter testing equipment

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with the car's electric drive system. It's like when your toy car's remote control stops working because of a problem with the battery or wires.

Explanation

The code indicates an issue with the inverter that controls the electric motor in a hybrid or electric vehicle. The inverter might be shutting down unexpectedly.

Technical description

The P1AFE code is triggered when the vehicle's control module detects an error in the shutdown path of the drive motor 'B' inverter. This could mean that the inverter is not properly controlling the power flow to the electric motor, potentially due to a fault in the inverter's circuitry or connections.

Symptoms

• Check engine light on

• Reduced vehicle performance

• Unusual noises from the electric motor area

Common Causes

• Faulty drive motor inverter

• Wiring or connection issues

• Control module malfunction

Glossary

Inverter: A device that converts DC electricity to AC electricity, used in electric vehicles to power the motor.

Drive Motor: The electric motor that propels the vehicle.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connections to the inverter.

• Test the inverter's functionality with specialized equipment.

Repair procedures

• Repair or replace faulty wiring or connections.

• Replace the drive motor inverter if necessary.

• Update or reprogram the control module if needed.

Tools required

• OBD-II scanner

• Multimeter

• Specialized inverter testing equipment

Estimated repair cost

$500 - $1500

Difficulty level

Difficult

Commonly affected vehicles

• Chevrolet Volt

• Nissan Leaf

• Toyota Prius

Preventive measures

• Regular maintenance checks

• Ensure proper cooling of the inverter

• Avoid excessive load on the electric drive system

Error code type

Electric Drive System Issue

User experience recommendations

• Avoid driving the vehicle until repaired to prevent further damage.

• Consult with a qualified technician for accurate diagnosis.

Warranty information

Check if the vehicle's hybrid or electric components are under warranty, as these parts may have extended coverage.

Historical data

This code has been more common in hybrid and electric vehicles as they age, indicating potential wear or design flaws in early inverter models.

Urgency level

High – This issue can lead to reduced vehicle performance and potential safety risks.

Testing conditions

• Vehicle at operating temperature

• Inverter under load conditions

Component location

The drive motor inverter is typically located near the electric motor, often in the engine bay or under the vehicle.

FAQs

Q: Can I drive with the P1AFE code?
A: It's not recommended, as it may lead to reduced performance or further damage.

Q: Is this a common issue in electric vehicles?
A: It can occur, especially in older models or those with high mileage.

Optional diagnostic gear

Tools that may help diagnose P1AFE

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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