AutoCodes – Honda – P2199 Honda

P2199 Honda Code - Intake Air Temperature Sensor 1/2 Correlation

Quick Answer

Two Engine Coolant Temperature (ECT) sensors and two Intake Air Temperature (IAT) sensors are used by the Powertrain Control Module (PCM). Common causes include Faulty Intake Air Temperature (IAT) 2 Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2199 Honda indicates Intake Air Temperature Sensor 1/2 Correlation.
Common causes: Common causes include Faulty Intake Air Temperature (IAT) 2 Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 9,755

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 18, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P2199 Honda Description

Two Engine Coolant Temperature (ECT) sensors and two Intake Air Temperature (IAT) sensors are used by the Powertrain Control Module (PCM). When the engine is stopped and enough time has passed, the temperatures of each sensor will equalize to the ambient temperature. The IAT sensor 2 failure is detected by comparing the sensor value difference of IAT sensor 1 and IAT sensor 2 after ECT sensor 1, ECT sensor 2, and IAT sensor 1 correlations are judged as normal. If the temperature difference between IAT sensor 1 and IAT sensor 2 exceeds a normal range, the PCM detects a malfunction and stores a Diagnostic Trouble Code (DTC).

OBDII Code P2199 Honda - Intake Air Temperature Sensor 1/2 Correlation - AutoCodes.com — P2199 Honda Code - Intake Air Temperature Sensor 1/2 Correlation

What does this mean?

What are the Possible Causes of the DTC P2199 Honda?

Faulty Intake Air Temperature (IAT) 2 Sensor
Intake Air Temperature 2 Sensor harness is open or shorted
Intake Air Temperature 2 Sensor circuit poor electrical connection

How to Fix the DTC P2199 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2199 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.