AutoCodes – Generic – P023D

P023D Code - Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation

Quick Answer

The Barometric Pressure (BARO) Sensor, the Manifold Absolute Pressure (MAP) Sensor, and the Turbocharger Boost Sensor are equipped in the vehicle to detect air pressure conditions to the engine. Common causes include Faulty Turbocharger Boost Sensor, Turbocharger Boost Sensor harness is open or shorted, Turbocharger Boost 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: P023D indicates Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation.
Common causes: Common causes include Faulty Turbocharger Boost Sensor, Turbocharger Boost Sensor harness is open or shorted, Turbocharger Boost 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 9,543

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 15, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
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Code P023D Description

The Barometric Pressure (BARO) Sensor, the Manifold Absolute Pressure (MAP) Sensor, and the Turbocharger Boost Sensor are equipped in the vehicle to detect air pressure conditions to the engine. The BARO sensor value and the turbocharger boost sensor value shows a similar value at range "A" such as in idle conditions, and the Turbocharger Boost Sensor value and MAP sensor value shows a similar value at range "B" such as in high throttle position.
Malfunction determinations are done by the Powertrain Control Module (PCM) in two ranges by comparing the pressure sensor values. The Diagnostic Trouble Code (DTC) will be set when at range "B", the Turbocharger boost sensor or MAP sensor is abnormal if the difference of the two pressure sensor values are specified or more.

OBDII Code P023D - Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation - AutoCodes.com — P023D Code - Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation

What does this mean?

What are the Possible Causes of the DTC P023D?

Faulty Turbocharger Boost Sensor
Turbocharger Boost Sensor harness is open or shorted
Turbocharger Boost Sensor circuit poor electrical connection
Faulty Manifold Absolute Pressure (MAP) Sensor

How to Fix the DTC P023D?

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 P023D 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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Information for Specific Makes

P023D Acura — Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation
P023D Honda — Turbocharger Boost Sensor/Manifold Absolute Pressure Sensor Incorrect Correlation
P023D Land Rover — Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor 'A' Correlation

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.