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Code P1E29

Quick reference

P1E29 at a glance

Plain-language meaning
The car's computer thinks that the motor that helps the car move is stuck and can't turn properly.
Urgency
High – Immediate attention is recommended to prevent further damage and ensure safety.
Difficulty
Moderate
System
Drive Motor Performance
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

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

Laymans terms

The car's computer thinks that the motor that helps the car move is stuck and can't turn properly.

Explanation

This code indicates that there is a problem with the drive motor 'B', which is not able to function as expected, possibly due to an obstruction or internal fault.

Technical description

The P1E29 code is triggered when the vehicle's control module detects that Drive Motor 'B' is not operating correctly. This could be due to a mechanical obstruction, electrical fault, or software issue that prevents the motor from functioning.

Symptoms

• Reduced vehicle performance

• Warning light on the dashboard

• Unusual noises from the motor area

Common Causes

• Mechanical obstruction in the motor

• Electrical fault in the motor circuit

• Software issue in the control module

Glossary

Drive Motor: An electric motor that provides propulsion for the vehicle.

OBD-II: On-Board Diagnostics, a standardized system for vehicle diagnostics.

Diagnosis steps

• Inspect the motor and surrounding components for physical obstructions.

• Check the electrical connections and wiring to the motor.

• Perform a diagnostic scan to check for related software issues.

Repair procedures

• Remove any obstructions from the motor area.

• Repair or replace faulty wiring or connectors.

• Update or reprogram the vehicle's control module software.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$200 - $1000

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Chevrolet Bolt

• Cadillac ELR

Preventive measures

• Regular maintenance checks

• Ensure no debris around motor components

• Keep software updated

Error code type

Drive Motor Performance

User experience recommendations

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

• Consult a professional mechanic for accurate diagnosis.

Warranty information

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

Historical data

This code has been reported in hybrid and electric vehicles where drive motors are used for propulsion.

Urgency level

High – Immediate attention is recommended to prevent further damage and ensure safety.

Testing conditions

• Vehicle stationary

• Engine running

Component location

Drive Motor 'B' is typically located near the vehicle's drivetrain or axle assembly.

FAQs

Q: Can I drive with a P1E29 code?
A: It's not recommended to drive with this code as it could lead to further damage or unsafe conditions.

Q: How can I reset the P1E29 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, the code may return.

Optional diagnostic gear

Tools that may help diagnose P1E29

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.

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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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