AutoCodes – Acura – P2552 Acura

P2552 Acura Code - Throttle/Fuel Inhibit Circuit

Quick Answer

The Diesel Engine Power Monitor (DEPM) strategy resides in the Transmission Control Module (TCM) located inside the Powertrain Control Module (PCM). Common causes include Faulty Fuel Injector Control Module (FICM), Faulty Powertrain Control Module (PCM), Fuel Injector Control Module harness is open or shorted. 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: P2552 Acura indicates Throttle/Fuel Inhibit Circuit.
Common causes: Common causes include Faulty Fuel Injector Control Module (FICM), Faulty Powertrain Control Module (PCM), Fuel Injector Control Module harness is open or shorted.
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 6,012

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 Jan 18, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2552 Acura Description

The Diesel Engine Power Monitor (DEPM) strategy resides in the Transmission Control Module (TCM) located inside the Powertrain Control Module (PCM). The function of the DEPM is to monitor the engine RPM when there is no power demand from the Accelerator Pedal Position (APP) sensor.
Under normal engine idle operation the DEPM RPM value must always be higher than the engine RPM. In the event that the engine RPM does not exceed the DEPM limit, the DEPM disables the crankshaft and camshaft output signal sent to the PCM to the Fuel Injector Control Module (FICM).

OBDII Code P2552 Acura - Throttle/Fuel Inhibit Circuit - AutoCodes.com — P2552 Acura Code - Throttle/Fuel Inhibit Circuit

What does this mean?

What are the Possible Causes of the DTC P2552 Acura?

Faulty Fuel Injector Control Module (FICM)
Faulty Powertrain Control Module (PCM)
Fuel Injector Control Module harness is open or shorted
Fuel Injector Control Module circuit poor electrical connection

How to Fix the DTC P2552 Acura?

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 P2552 Acura 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.

Frequently Asked Questions about P2552 Acura Code

1. What does the OBDII code P2552 mean for an Acura?

P2552 indicates an issue with the Throttle/Fuel Inhibit Circuit, which affects the communication between the throttle system and fuel delivery system.

2. What are the common symptoms of P2552 on an Acura?

Symptoms may include poor engine performance, reduced throttle response, engine stalling, or the check engine light illuminating.

3. What causes the P2552 code to trigger in an Acura?

Causes can include a faulty throttle position sensor (TPS), damaged wiring or connectors, a malfunctioning fuel control module, or issues with the engine control module (ECM).

4. Can I drive my Acura with the P2552 code?

Driving with P2552 is not recommended, as it can lead to poor performance and safety risks due to potential loss of throttle control or engine stalling.

5. How do I diagnose the P2552 code on my Acura?

Diagnosis involves using an OBDII scanner to confirm the code, inspecting the throttle/fuel inhibit circuit wiring and connectors, and testing the TPS and ECM for faults.

6. What are potential fixes for the P2552 code?

Repairs may include replacing the throttle position sensor, repairing damaged wiring, replacing the fuel control module, or reprogramming/repairing the ECM.

7. How much does it cost to fix the P2552 code on an Acura?

Costs vary depending on the issue, but TPS replacement can range from $150 to $300, while ECM repairs or replacements may cost $500 or more.

8. Can a dirty throttle body cause the P2552 code on an Acura?

While not a direct cause, a dirty throttle body can impact throttle operation and potentially contribute to issues leading to the P2552 code.

9. Will clearing the P2552 code with an OBDII scanner fix the problem?

Clearing the code may turn off the check engine light temporarily, but it won't resolve the underlying issue causing the P2552 code.

10. How can I prevent the P2552 code from recurring on my Acura?

Regular maintenance, such as inspecting and cleaning the throttle body, checking wiring connections, and addressing component wear promptly, can help prevent the code from recurring.