AutoCodes – Generic – P153C

P153C Code - Idle Air Control Actuator 2 Target Position Fault

Quick Answer

The Engine Control Module (ECM) monitors the Idle Air Control Actuator. Common causes include Faulty Idle Air Control Actuator, Idle Air Control Actuator harness is open or shorted, Idle Air Control Actuator 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: P153C indicates Idle Air Control Actuator 2 Target Position Fault.
Common causes: Common causes include Faulty Idle Air Control Actuator, Idle Air Control Actuator harness is open or shorted, Idle Air Control Actuator 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 2,381

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 Dec 31, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P153C Description

The Engine Control Module (ECM) monitors the Idle Air Control Actuator. The ECM sets the OBDII code when the Idle Air Control Actuator is not to factory specifications.

OBDII Code P153C - Idle Air Control Actuator 2 Target Position Fault - AutoCodes.com — P153C Code - Idle Air Control Actuator 2 Target Position Fault

What does this mean?

What are the Possible Causes of the DTC P153C?

Faulty Idle Air Control Actuator
Idle Air Control Actuator harness is open or shorted
Idle Air Control Actuator circuit poor electrical connection

How to Fix the DTC P153C?

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 P153C 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.

Need more information about the P153C code?

Need more information on how to fix the P153C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P153C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P153C BMW — Idle Air Control Actuator 2 Target Position Fault
P153C Buick — Engine Speed Signal Message Counter Incorrect
P153C Cadillac — Engine Speed Signal Message Counter Incorrect
P153C Chevrolet — Engine Speed Signal Message Counter Incorrect
P153C GMC — Engine Speed Signal Message Counter Incorrect
P153C MINI — Idle Air Control Actuator 2 Target Position Fault

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 P153C Code

1. What are the common symptoms of OBDII code P153C (Idle Air Control Actuator 2 Target Position Fault)?

The common symptoms of code P153C include rough idling, stalling at idle, fluctuating idle speed, and possibly decreased fuel efficiency.

2. What are the possible causes of OBDII code P153C?

The potential causes of code P153C include a faulty idle air control actuator, wiring or connector issues, vacuum leaks, or a problem with the engine control module.

3. How can I diagnose the source of OBDII code P153C?

To diagnose code P153C, you can start by checking the idle air control actuator and its wiring for any visible damage. You can also use a scan tool to monitor the actuator's target position and actual position to pinpoint the issue.

4. Is it safe to continue driving with OBDII code P153C present?

It is not recommended to continue driving with code P153C present, as it can lead to further engine performance issues or potential stalling, which may compromise safety on the road.

5. How can I repair OBDII code P153C at home?

If you have some mechanical knowledge, you may be able to replace the idle air control actuator yourself. However, it's always best to consult a professional mechanic for a proper diagnosis and repair.

6. Can a dirty throttle body cause OBDII code P153C to trigger?

Yes, a dirty or clogged throttle body can disrupt the airflow and cause idle control issues, potentially leading to the activation of code P153C.

7. Will resetting the ECU clear OBDII code P153C?

Resetting the ECU may temporarily clear the code, but if the underlying issue causing code P153C is not addressed, the code is likely to reappear after some driving cycles.

8. What is the typical cost to repair OBDII code P153C at a repair shop?

The cost to repair OBDII code P153C at a repair shop can vary depending on the exact cause of the issue, but it may range from $100 to $300 or more, including parts and labor.

9. Can a faulty oxygen sensor trigger OBDII code P153C?

While a faulty oxygen sensor is not a common cause of code P153C, it can contribute to overall engine performance issues that may indirectly affect the idle air control system.

10. How urgent is it to address OBDII code P153C once it appears?

It is recommended to address OBDII code P153C promptly to prevent potential engine performance issues and ensure the overall health and efficiency of your vehicle.