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Code P25E6

Quick reference

P25E6 at a glance

Plain-language meaning
The car's computer is saying that a part called the camshaft, which helps the engine run, is not moving like it should on one side of the engine.
Urgency
Moderate – While the vehicle may still run, ignoring this issue can lead to more severe engine problems.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Wrench set, Oil filter wrench

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

Laymans terms

The car's computer is saying that a part called the camshaft, which helps the engine run, is not moving like it should on one side of the engine.

Explanation

The camshaft position sensor is reporting that the camshaft is not able to move to its expected position due to being stuck.

Technical description

This code indicates that the camshaft, specifically the 'B' camshaft on bank 2 of the engine, is stuck in a locked position. This means it cannot adjust its timing as required by the engine control module (ECM). This can affect engine performance and efficiency.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Engine misfires or runs rough

Common Causes

• Faulty camshaft position actuator

• Oil flow issues to the camshaft actuator

• Mechanical blockage in the camshaft system

Glossary

Camshaft: A shaft in the engine that controls the opening and closing of the intake and exhaust valves.

Actuator: A device that moves or controls a mechanism or system.

Diagnosis steps

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

• Inspect the camshaft position actuator for damage or blockage.

• Check the oil level and quality, ensuring proper oil flow.

Repair procedures

• Replace the camshaft position actuator if faulty.

• Clear any blockages in the camshaft system.

• Change the engine oil and filter if necessary.

Tools required

• OBD-II scanner

• Wrench set

• Oil filter wrench

Estimated repair cost

$200 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford F-150

Preventive measures

• Regular oil changes

• Use high-quality oil

• Routine engine maintenance

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light.

• Get the vehicle checked by a professional mechanic.

Warranty information

Check with your vehicle manufacturer for warranty coverage on engine components.

Historical data

This code is commonly associated with vehicles that have variable valve timing systems, which can be sensitive to oil quality and maintenance.

Urgency level

Moderate – While the vehicle may still run, ignoring this issue can lead to more severe engine problems.

Testing conditions

• Engine at operating temperature

• Vehicle in idle or low-speed conditions

Component location

The camshaft position actuator is typically located near the top of the engine, on the cylinder head.

FAQs

Q: Can I drive with a P25E6 code?
A: It's not recommended to drive for long periods with this code, as it can cause further engine damage.

Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance and increased wear, potentially causing more expensive repairs.

Optional diagnostic gear

Tools that may help diagnose P25E6

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.

Fitment matters

Commonly referenced parts for P25E6

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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