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Code P2620

Quick reference

P2620 at a glance

Plain-language meaning
The car's computer can't talk to the part that controls how much gas the engine gets. It's like when your game controller isn't connected to your console.
Urgency
Moderate – Address the issue soon to avoid potential engine performance problems.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

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

Laymans terms

The car's computer can't talk to the part that controls how much gas the engine gets. It's like when your game controller isn't connected to your console.

Explanation

This code indicates a problem with the circuit that sends signals from the throttle position sensor to the engine control module (ECM).

Technical description

The P2620 code is triggered when the ECM detects an open or malfunction in the throttle position output circuit. This circuit is responsible for sending the throttle position sensor's signal to the ECM, which uses this information to control the engine's air-fuel mixture.

Symptoms

• Check engine light is on

• Poor engine performance

• Hesitation or stalling

Common Causes

• Faulty throttle position sensor

• Damaged wiring or connectors

• ECM malfunction

Glossary

ECM: Engine Control Module

Throttle Position Sensor: A sensor that measures the position of the throttle in the engine.

Diagnosis steps

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

• Inspect the throttle position sensor and its wiring for damage.

• Test the throttle position sensor for proper operation.

Repair procedures

• Replace the throttle position sensor if faulty.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford F-150

Preventive measures

• Regularly inspect and clean the throttle body.

• Ensure all electrical connections are secure.

• Perform routine maintenance as recommended by the manufacturer.

Error code type

Sensor Issue

User experience recommendations

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

• Consult a professional mechanic for a thorough diagnosis.

Warranty information

Check with your vehicle manufacturer; some powertrain warranties may cover this issue.

Historical data

This code has been associated with issues in vehicles with electronic throttle control systems.

Urgency level

Moderate – Address the issue soon to avoid potential engine performance problems.

Testing conditions

• Engine at operating temperature

• Vehicle in park or neutral

Component location

The throttle position sensor is typically located on the throttle body, which is attached to the intake manifold.

FAQs

Q: Can I drive my car with a P2620 code?
A: It's not recommended as it can lead to poor engine performance and unsafe driving conditions.

Q: How do I reset the check engine light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.

Optional diagnostic gear

Tools that may help diagnose P2620

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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