ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code P1E38

Quick reference

P1E38 at a glance

Plain-language meaning
This code means that a part of the car's electric motor system is taking too long to turn off safely.
Urgency
High – This issue can affect the safety and performance of the vehicle.
Difficulty
Moderate
System
Electric Drive System Issue
Tools mentioned
OBD-II scanner, Multimeter, Diagnostic software

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

Laymans terms

This code means that a part of the car's electric motor system is taking too long to turn off safely.

Explanation

The code indicates that the internal DC link of Drive Motor 'B' is discharging slower than expected.

Technical description

The internal DC link in an electric drive motor is responsible for managing the flow of electricity. If it takes too long to discharge, it may indicate a fault in the motor's electrical system, which can affect vehicle performance.

Symptoms

• Reduced vehicle performance

• Warning light on the dashboard

• Unusual noises from the motor

Common Causes

• Faulty drive motor

• Wiring issues in the motor circuit

• Malfunctioning control module

Glossary

DC Link: A part of the electric motor system that manages the flow of electricity.

Drive Motor: The electric motor that propels the vehicle.

Diagnosis steps

• Check for any other related fault codes.

• Inspect the wiring and connections to Drive Motor 'B'.

• Test the drive motor for proper operation.

Repair procedures

• Repair or replace faulty wiring.

• Replace the drive motor if necessary.

• Reprogram or replace the control module.

Tools required

• OBD-II scanner

• Multimeter

• Diagnostic software

Estimated repair cost

$500 - $1500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Chevrolet Bolt EV

• Cadillac ELR

Preventive measures

• Regular maintenance of the electric drive system

• Ensure proper charging procedures

• Avoid overloading the vehicle

Error code type

Electric Drive System Issue

User experience recommendations

• Do not ignore the warning light.

• Get the vehicle checked by a professional.

• Avoid driving the vehicle until repaired.

Warranty information

Check with the vehicle manufacturer for warranty coverage on electric drive components.

Historical data

This code is relatively specific to hybrid and electric vehicles and has become more common as these vehicles age.

Urgency level

High – This issue can affect the safety and performance of the vehicle.

Testing conditions

• Vehicle must be in a safe, stationary position.

• Ensure the battery is charged.

Component location

Drive Motor 'B' is typically located near the vehicle's electric drive unit, often at the front or rear axle.

FAQs

Q: Can I drive with a P1E38 code?
A: It's not recommended to drive with this code active as it may affect vehicle performance and safety.

Q: How urgent is it to fix a P1E38 code?
A: It is quite urgent as it can impact the vehicle's safety and performance.

Optional diagnostic gear

Tools that may help diagnose P1E38

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
🌙