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 P1EE4

Quick reference

P1EE4 at a glance

Plain-language meaning
The car's computer is saying that a sensor checking the temperature of the battery is reading too high. It's like a thermometer showing a really high temperature when it shouldn't.
Urgency
High – Address promptly to avoid potential battery damage.
Difficulty
Moderate
System
Sensor Issue
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 is saying that a sensor checking the temperature of the battery is reading too high. It's like a thermometer showing a really high temperature when it shouldn't.

Explanation

The code P1EE4 indicates that the Battery Energy Control Module has detected a high voltage signal from the temperature sensor 'A' in module 'B'.

Technical description

The Battery Energy Control Module (BECM) monitors various temperature sensors to ensure the battery operates within safe temperature limits. A 'Circuit High' condition suggests that the voltage reading from the temperature sensor is higher than expected, potentially indicating a malfunctioning sensor or wiring issue.

Symptoms

• Warning light on the dashboard

• Reduced battery performance

• Possible overheating of the battery

Common Causes

• Faulty temperature sensor

• Wiring issues such as shorts or open circuits

• Malfunctioning Battery Energy Control Module

Glossary

Battery Energy Control Module: A system that manages the battery's performance and safety.

Circuit High: A condition where the voltage reading is higher than expected.

Diagnosis steps

• Use an OBD-II scanner to confirm the code

• Inspect the wiring and connectors for damage or corrosion

• Test the temperature sensor for proper function

Repair procedures

• Replace the faulty temperature sensor

• Repair or replace damaged wiring

• Replace the Battery Energy Control Module if necessary

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Chevrolet Bolt

• Cadillac ELR

Preventive measures

• Regular battery maintenance

• Check and clean battery connections

• Routine diagnostic checks

Error code type

Sensor Issue

User experience recommendations

• Avoid driving the vehicle until the issue is resolved to prevent battery damage.

• Consult a professional mechanic for accurate diagnosis and repair.

Warranty information

Check with your vehicle manufacturer for warranty coverage on battery-related components.

Historical data

This code has been associated with hybrid and electric vehicles, particularly in models with advanced battery management systems.

Urgency level

High – Address promptly to avoid potential battery damage.

Testing conditions

• Vehicle at operating temperature

• Battery under load conditions

Component location

The temperature sensor is typically located within or near the battery pack.

FAQs

Q: Can I drive my car with this code?
A: It's not recommended to drive the car until the issue is resolved, as it may lead to battery damage.

Q: How can I reset the code?
A: After repairs, you can reset the code using an OBD-II scanner, but ensure the issue is fixed to prevent recurrence.

Optional diagnostic gear

Tools that may help diagnose P1EE4

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
🌙