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Code P2445

Quick reference

P2445 at a glance

Plain-language meaning
The car has a system that helps reduce pollution, and one part of it isn't working properly on one side of the engine.
Urgency
Moderate – It may not affect immediate drivability but should be addressed to pass emissions tests and prevent further issues.
Difficulty
Moderate
System
Emission Control System
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

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

Laymans terms

The car has a system that helps reduce pollution, and one part of it isn't working properly on one side of the engine.

Explanation

The Secondary Air Injection System helps reduce emissions by injecting air into the exhaust stream. Code P2445 indicates that the air pump is not operating on Bank 1.

Technical description

The P2445 code is set when the Engine Control Module (ECM) detects that the secondary air injection pump is not operating as expected on Bank 1. This could be due to electrical issues, mechanical failure, or blockages in the system.

Symptoms

• Check Engine Light is on

• Failed emissions test

• Possible engine performance issues

Common Causes

• Faulty air injection pump

• Blown fuse or open circuit

• Blocked air injection system

Glossary

Secondary Air Injection System: A system that injects air into the exhaust stream to reduce emissions.

Bank 1: The side of the engine containing cylinder 1.

Diagnosis steps

• Inspect the air injection pump for proper operation.

• Check the fuse and electrical connections.

• Examine the system for blockages or restrictions.

Repair procedures

• Replace the faulty air injection pump.

• Repair or replace any damaged wiring or fuses.

• Clear any blockages in the air injection system.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$200 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Tundra

• Lexus GX470

• Chevrolet Silverado

Preventive measures

• Regular maintenance checks

• Ensure proper electrical connections

• Keep the system free of debris

Error code type

Emission Control System

User experience recommendations

• Have the vehicle inspected by a professional.

• Avoid driving in conditions that may worsen the issue.

Warranty information

Check with the manufacturer for specific warranty coverage related to emissions systems.

Historical data

This code has been more common in vehicles with aging secondary air injection systems, particularly in models from the early 2000s.

Urgency level

Moderate – It may not affect immediate drivability but should be addressed to pass emissions tests and prevent further issues.

Testing conditions

• Engine at operating temperature

• System under load

Component location

The secondary air injection pump is typically located near the front of the engine bay, often on the passenger side.

FAQs

Q: Can I drive with a P2445 code?
A: While you can drive with this code, it is recommended to fix it soon to avoid emissions test failures.

Q: What happens if I ignore the P2445 code?
A: Ignoring the code can lead to increased emissions and potential failure of the emissions test.

Optional diagnostic gear

Tools that may help diagnose P2445

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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