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Code P1E57

Quick reference

P1E57 at a glance

Plain-language meaning
The car's computer found a problem with the safety system for one of the electric motors. It's like a warning light for the motor's safety features.
Urgency
Moderate – It's important to address this issue soon to prevent potential safety risks.
Difficulty
Moderate
System
Control Module Issue
Tools mentioned
OBD-II scanner, Multimeter, Diagnostic software

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

Laymans terms

The car's computer found a problem with the safety system for one of the electric motors. It's like a warning light for the motor's safety features.

Explanation

This code indicates that the control module for the second drive motor has detected an issue with its safety function operation mode.

Technical description

The P1E57 code is set when the Drive Motor 'B' Control Module detects a fault in the safety function operation mode. This could be due to a malfunction in the module's ability to monitor or control the safety functions of the motor. The control module is responsible for ensuring that the motor operates safely and efficiently, and any deviation from expected parameters triggers this code.

Symptoms

• Check engine light on

• Reduced vehicle performance

• Unusual noises from the motor

Common Causes

• Faulty drive motor control module

• Wiring issues or poor connections

• Software glitch in the control module

Glossary

Control Module: A computer in the vehicle that controls various functions.

Drive Motor: An electric motor that provides power to drive the vehicle.

Diagnosis steps

• Check for any other related codes

• Inspect wiring and connections to the control module

• Test the drive motor control module functionality

Repair procedures

• Repair or replace faulty wiring

• Update or reprogram the control module software

• Replace the drive motor control module if necessary

Tools required

• OBD-II scanner

• Multimeter

• Diagnostic software

Estimated repair cost

$200 - $1000

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Chevrolet Bolt

• Cadillac ELR

Preventive measures

• Regular maintenance checks

• Keep software updated

• Ensure proper electrical connections

Error code type

Control Module Issue

User experience recommendations

• Have the vehicle inspected by a professional

• Avoid driving long distances until fixed

Warranty information

Check with the manufacturer for warranty coverage on control module issues.

Historical data

This code has been associated with hybrid and electric vehicles, particularly those with advanced drive systems.

Urgency level

Moderate – It's important to address this issue soon to prevent potential safety risks.

Testing conditions

• Vehicle must be in a safe location

• Ensure the battery is fully charged

Component location

The drive motor control module is typically located near the motor or under the hood in the engine compartment.

FAQs

Q: Can I drive with a P1E57 code?
A: It's not recommended as it may affect vehicle safety and performance.

Q: How is the P1E57 code diagnosed?
A: A mechanic will use an OBD-II scanner and perform tests on the control module and wiring.

Optional diagnostic gear

Tools that may help diagnose P1E57

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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