AutoCodes – Generic – P16F8

P16F8 Code - Control Module Clutch Command Incorrect

Quick Answer

This is an internal fault detection of the Transmission Control Module (TCM). Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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: P16F8 indicates Control Module Clutch Command Incorrect.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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 2,083

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 Jan 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16F8 Description

This is an internal fault detection of the Transmission Control Module (TCM). The transmission control module is part of the control solenoid valve assembly, and is not serviced separately. This fault is handled inside the transmission control module and no external circuits are involved.

OBDII Code P16F8 - Control Module Clutch Command Incorrect - AutoCodes.com — P16F8 Code - Control Module Clutch Command Incorrect

What does this mean?

What are the Possible Causes of the DTC P16F8?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P16F8?

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 P16F8 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 P16F8 code?

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Need Help with the Code?

Get the P16F8 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P16F8 Acura — Starter Inhibitor Relay Stuck Off
P16F8 Buick — Control Module Clutch Command Incorrect
P16F8 Cadillac — Control Module Clutch Command Incorrect
P16F8 Chevrolet — Control Module Clutch Command Incorrect
P16F8 GMC — Control Module Clutch Command Incorrect
P16F8 Honda — Starter Inhibitor Relay Stuck Off

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 P16F8 Code

1. What are common symptoms of OBDII code P16F8 (Control Module Clutch Command Incorrect)?

- Common symptoms include rough shifting, hesitation when accelerating, and illuminated Check Engine light.

2. What are the potential causes of OBDII code P16F8?

- Possible causes include a faulty clutch actuator, damaged wiring or connectors, or issues with the control module itself.

3. How can I diagnose the OBDII code P16F8?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the code, checking for any related codes, and performing a thorough inspection of the clutch system components.

4. Can I continue driving with OBDII code P16F8 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission or other components.

5. How can I repair OBDII code P16F8?

- Repairing this code may involve replacing the clutch actuator, repairing any damaged wiring or connectors, or reprogramming the control module.

6. Are there any DIY tips for fixing OBDII code P16F8?

- DIY tips include checking for loose connections, ensuring the clutch actuator is functioning properly, and consulting the vehicle's service manual for specific troubleshooting steps.

7. Can a faulty sensor cause OBDII code P16F8 to appear?

- While a faulty sensor is not a common cause of this code, it is still advisable to check all sensors related to the clutch system during diagnosis.

8. How long does it typically take to repair OBDII code P16F8?

- The repair time for this code can vary depending on the exact cause and the complexity of the repair needed. It is best to consult a professional mechanic for an accurate estimate.

9. Is it safe to clear the OBDII code P16F8 and see if it returns?

- Clearing the code may temporarily turn off the Check Engine light, but if the underlying issue is not addressed, the code is likely to return. It is recommended to diagnose and repair the root cause.

10. Can extreme weather conditions trigger OBDII code P16F8?

- Extreme weather conditions can potentially exacerbate existing issues that lead to this code, such as electrical connections becoming loose or damaged. It is important to address any underlying problems promptly.