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Code P2C67

Quick reference

P2C67 at a glance

Plain-language meaning
The car's computer has detected that the pump which cools the electronics in a hybrid or electric vehicle is spinning too fast.
Urgency
High – This issue can lead to overheating and potential damage to electronic components if not addressed promptly.
Difficulty
Moderate
System
Cooling System Issue
Tools mentioned
OBD-II scanner, Multimeter, Wrench set

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

Laymans terms

The car's computer has detected that the pump which cools the electronics in a hybrid or electric vehicle is spinning too fast.

Explanation

The electronics coolant pump is designed to maintain a specific speed to ensure proper cooling of the vehicle's electronic systems. If it spins too fast, it could indicate a malfunction.

Technical description

The P2C67 code is triggered when the Powertrain Control Module (PCM) detects that the electronics coolant pump 'A' in a hybrid or electric vehicle is operating at a speed higher than expected. This could be due to a fault in the pump, a sensor error, or a wiring issue.

Symptoms

• Check Engine Light is on

• Overheating of electronic components

• Reduced vehicle performance

Common Causes

• Faulty electronics coolant pump

• Wiring issues or poor connections

• Faulty speed sensor

Glossary

PCM: Powertrain Control Module

OBD-II: On-Board Diagnostics II

Diagnosis steps

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

• Inspect the electronics coolant pump and its wiring.

• Check the speed sensor for proper operation.

Repair procedures

• Replace the electronics coolant pump if faulty.

• Repair or replace damaged wiring or connectors.

• Replace the speed sensor if it is defective.

Tools required

• OBD-II scanner

• Multimeter

• Wrench set

Estimated repair cost

$200 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Prius

• Chevrolet Volt

• Nissan Leaf

Preventive measures

• Regular maintenance of the cooling system

• Ensure proper connections and wiring integrity

• Regularly check for software updates

Error code type

Cooling System Issue

User experience recommendations

• Do not ignore the warning light; get the vehicle checked.

• Avoid long drives until the issue is resolved to prevent overheating.

• Consult a professional mechanic for accurate diagnosis.

Warranty information

Check with the vehicle manufacturer for warranty coverage on hybrid/EV components.

Historical data

This code has become more common with the increased use of hybrid and electric vehicles, as their cooling systems are crucial for performance.

Urgency level

High – This issue can lead to overheating and potential damage to electronic components if not addressed promptly.

Testing conditions

• Vehicle must be in operation

• Coolant system must be active

Component location

The electronics coolant pump is typically located near the battery pack or electronic control modules in the vehicle.

FAQs

Q: Can I drive my car with a P2C67 code?
A: It's not recommended to drive the vehicle for extended periods with this code, as it may lead to overheating and damage.

Q: How can I prevent this code from appearing again?
A: Regular maintenance of the cooling system and ensuring all connections are secure can help prevent this issue.

Optional diagnostic gear

Tools that may help diagnose P2C67

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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