AutoCodesKIA – P1642 KIA

P1642 KIA Code - Engine Control Module Non Immobilizer / Incorrect Type

Quick Answer

P1642 KIA indicates Engine Control Module Non Immobilizer / Incorrect Type. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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
P1642 KIA indicates Engine Control Module Non Immobilizer / Incorrect Type.
Common causes
Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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 4,609
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 04, 2019
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Code P1642 KIA Description

OBDII Code P1642 KIA - Engine Control Module Non Immobilizer / Incorrect Type - AutoCodes.com
P1642 KIA Code - Engine Control Module Non Immobilizer / Incorrect Type

What are the Possible Causes of the DTC P1642 KIA?

  • Faulty Engine Control Module (ECM)
  • Engine Control Module (ECM) harness is open or shorted
  • Engine Control Module (ECM) circuit poor electrical connection

How to Fix the DTC P1642 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 P1642 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 P1642 KIA Code

1. What does the OBD-II code P1642 on a Kia mean?

P1642 indicates an issue with the Engine Control Module (ECM) detecting an incorrect or non-immobilizer type system, which may be due to a communication or configuration problem.

2. What are the common symptoms of code P1642 on a Kia vehicle?

Symptoms may include difficulty starting the engine, the immobilizer light staying on, a no-start condition, or reduced engine performance.

3. What causes the P1642 code to appear on a Kia?

Common causes include a faulty ECM, incorrect ECM programming, issues with the immobilizer system, or damaged wiring and connectors.

4. Can I drive my Kia with the P1642 code?

Driving may be possible, but the vehicle might experience starting issues or immobilizer malfunctions. It’s best to repair the issue promptly to avoid being stranded.

5. How is the P1642 code diagnosed on a Kia?

A mechanic will use an OBD-II scanner to retrieve the code, inspect the immobilizer system, check for proper ECM programming, and test wiring and connections.

6. What repairs are needed to fix the P1642 code on a Kia?

Repairs may include reprogramming or replacing the ECM, repairing or replacing immobilizer components, or fixing damaged wiring and connectors.

7. Can a weak battery trigger the P1642 code on a Kia?

Yes, a weak or failing battery can cause communication errors or voltage issues, potentially triggering this code.

8. How much does it cost to repair the P1642 code on a Kia?

Repair costs can vary widely, typically ranging from $150 for wiring repairs to over $1,000 if the ECM needs replacement and reprogramming.

9. Is this code specific to Kia vehicles?

While P1642 is a manufacturer-specific code for Kia, other manufacturers may use similar codes for different issues.

10. Can I reset the P1642 code without fixing the problem?

Clearing the code without addressing the root cause will only result in the code returning, as the issue persists.

Discuss the causes and fixes for P1642 KIA OBDII Code

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