AutoCodes – KIA – C1272 KIA

C1272 KIA Code - Engine Speed Input Malfunction

Quick Answer

The Electronic Power Steering (EPS) Control Module (CM) confirms driver's driving intention by receiving engine RPM signal from Powertrain Control Module (PCM) or Electronic Control Module (ECM) while judging the failure of vehicle speed sensor. Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted, Powertrain Control Module (PCM) 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: C1272 KIA indicates Engine Speed Input Malfunction.
Common causes: Common causes include Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted, Powertrain Control Module (PCM) 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 4,055

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1272 KIA Description

The Electronic Power Steering (EPS) Control Module (CM) confirms driver's driving intention by receiving engine RPM signal from Powertrain Control Module (PCM) or Electronic Control Module (ECM) while judging the failure of vehicle speed sensor. The EPS use a maximum of 45A controlling ESP motor. If EPS motor is operating in idle, or engine rpm decreases due to abnormally high generator load, the engine stops or battery is discharged. To prevent this situation, When motor consumes over 25A in engine idle, EPS CM grounds 12V voltage, which is outputted from ECU, and sends an idle-up signal to engine ECU. If motor consume less than 20A, or vehicle speed is faster than 5Km/h, EPS CM turns

OBDII Code C1272 KIA - Engine Speed Input Malfunction - AutoCodes.com — C1272 KIA Code - Engine Speed Input Malfunction

What does this mean?

What are the Possible Causes of the DTC C1272 KIA?

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

How to Fix the DTC C1272 KIA?

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 C1272 KIA 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 C1272 KIA Code

1. What are the common symptoms of OBDII code C1272 in a KIA vehicle?

- Common symptoms include rough idling, stalling, poor engine performance, and the Check Engine light being illuminated.

2. What does the OBDII code C1272 "Engine Speed Input Malfunction" mean in a KIA?

- This code indicates that there is a malfunction in the engine speed input signal, which affects the vehicle's engine performance.

3. What are some possible causes of the C1272 code in a KIA?

- Possible causes include a faulty crankshaft position sensor, damaged wiring or connectors, a defective engine control module (ECM), or issues with the engine speed sensor.

4. How can I diagnose the C1272 code in my KIA?

- Diagnosing the code involves using a scan tool to check for the code, inspecting the engine speed sensor and related wiring, and performing tests to determine the root cause of the malfunction.

5. Can I still drive my KIA with the C1272 code present?

- It is not recommended to drive the vehicle with the C1272 code as it can lead to further damage to the engine and potentially unsafe driving conditions.

6. How can I repair the Engine Speed Input Malfunction indicated by the C1272 code in my KIA?

- Repairing the issue may involve replacing the faulty crankshaft position sensor, repairing or replacing damaged wiring, resetting the ECM, or addressing any other underlying issues causing the malfunction.

7. Is it safe to reset the ECM to clear the C1272 code in my KIA?

- While resetting the ECM may clear the code temporarily, it is important to diagnose and repair the underlying issue causing the code to prevent it from reoccurring and ensure the safe operation of the vehicle.

8. How much does it typically cost to repair the C1272 code in a KIA?

- The cost of repairs can vary depending on the specific cause of the code, but it may range from around $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix the C1272 code in a KIA, or is professional help required?

- Depending on the DIY enthusiast's skill level and access to tools, they may be able to diagnose and repair the issue themselves. However, professional help may be recommended for more complex repairs or if unsure about the diagnosis.

10. Will the C1272 code disappear on its own in a KIA, or does it require immediate attention?

- The C1272 code will not disappear on its own and requires immediate attention to diagnose and repair the underlying issue causing the engine speed input malfunction.