AutoCodes – Generic – P16B6

P16B6 Code - Engine Control Module Self-Test ETC Monitoring

Quick Answer

The Engine Control Module (ECM) monitors the ETC Monitoring. 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
P16B6 indicates Engine Control Module Self-Test ETC Monitoring.
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 3,533
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 10, 2020
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Code P16B6 Description

The Engine Control Module (ECM) monitors the ETC Monitoring. The ECM sets the OBDII code when the ETC Monitoring is not to factory specifications.
OBDII Code P16B6 - Engine Control Module Self-Test ETC Monitoring - AutoCodes.com
P16B6 Code - Engine Control Module Self-Test ETC Monitoring

What are the Possible Causes of the DTC P16B6?

  • 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 P16B6?

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 P16B6 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 P16B6 code?

Need more information on how to fix the P16B6 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16B6 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P16B6 BMW β€” Engine Control Module Self-Test ETC Monitoring
  • P16B6 MINI β€” Engine Control Module Self-Test ETC Monitoring
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 P16B6 Code

1. What does the OBDII code P16B6 mean?

P16B6 indicates that the Engine Control Module (ECM) has detected an issue during its self-test related to the Electronic Throttle Control (ETC) system.

2. What are the common symptoms of code P16B6?

Symptoms may include a check engine light, reduced engine power, poor throttle response, or the vehicle entering "limp mode."

3. What causes the P16B6 code to appear?

Common causes include a faulty ECM, malfunctioning throttle body, damaged ETC wiring or connectors, or software issues within the ECM.

4. Can I drive my vehicle with the P16B6 code?

Driving is possible but not recommended, as reduced power or throttle issues may impact safety and cause further damage.

5. How is the P16B6 code diagnosed?

A mechanic will use a scan tool to confirm the code, inspect the ETC system wiring and connectors, and perform tests on the throttle body and ECM functionality.

6. What repairs can fix the P16B6 code?

Possible repairs include replacing the throttle body, repairing or replacing damaged wiring, reprogramming or updating the ECM, or replacing the ECM if necessary.

7. Does the P16B6 code require ECM replacement?

Not always; ECM replacement is only necessary if all other components are tested and confirmed to be functioning properly.

8. How much does it cost to fix the P16B6 code?

Repair costs vary, ranging from $100 for wiring repairs to over $1,000 for ECM replacement, depending on the exact issue.

9. Can a software update resolve the P16B6 code?

Yes, in some cases, updating the ECM software can resolve glitches or errors causing the code.

10. How can I prevent the P16B6 code from recurring?

Regular maintenance, including inspecting and cleaning the throttle body and ensuring wiring is intact, can help prevent this issue.

Discuss the causes and fixes for P16B6 OBDII Code

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