AutoCodes – Generic – P16C8

P16C8 Code - Front Engine Mount Actuator Control Circuit High Current

Quick Answer

The engine mount control system controls the engine mounts electronically. Common causes include Faulty Front Engine Mount Actuator, Front Engine Mount Actuator harness is open or shorted, Front Engine Mount 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: P16C8 indicates Front Engine Mount Actuator Control Circuit High Current.
Common causes: Common causes include Faulty Front Engine Mount Actuator, Front Engine Mount Actuator harness is open or shorted, Front Engine Mount 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 4,305

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 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P16C8 Description

The engine mount control system controls the engine mounts electronically. The system consists of the engine mount actuators, the engine mount control unit, and the Powertrain Control Module (PCM). The engine mount control unit uses the crankshaft and camshaft position sensor outputs (received from the PCM) to estimate engine vibration. The engine mount control unit then sends signals to the engine mount actuators to command the engine mounts to push and pull on the engine to counteract engine vibration. The engine mount control unit monitors the engine mount control unit voltage. If the ACM RLY OUT voltage is set value or less for a set time, the engine mount control unit detects a malfunction and stores a DTC.

OBDII Code P16C8 - Front Engine Mount Actuator Control Circuit High Current - AutoCodes.com — P16C8 Code - Front Engine Mount Actuator Control Circuit High Current

What does this mean?

What are the Possible Causes of the DTC P16C8?

Faulty Front Engine Mount Actuator
Front Engine Mount Actuator harness is open or shorted
Front Engine Mount Actuator circuit poor electrical connection
Faulty Engine Mount Control Unit

How to Fix the DTC P16C8?

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 P16C8 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 P16C8 code?

Need more information on how to fix the P16C8 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16C8 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P16C8 Acura — Front Engine Mount Actuator Control Circuit High Current
P16C8 BMW — Fuel Pump Circuit No Signal
P16C8 Honda — Front Engine Mount Actuator Control Circuit High Current
P16C8 MINI — Fuel Pump Circuit No Signal

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 P16C8 Code

1. What are common symptoms of OBDII code P16C8 (Front Engine Mount Actuator Control Circuit High Current)?

- Common symptoms include engine vibrations, increased noise or harshness, and potential transmission shifting issues.

2. What can cause OBDII code P16C8 to trigger?

- This code can be triggered by a faulty front engine mount actuator, damaged wiring in the actuator circuit, or a malfunctioning engine control module.

3. How can I diagnose the cause of OBDII code P16C8?

- To diagnose this code, you can perform a visual inspection of the engine mount actuator and its wiring, check for loose connections, and use a scan tool to monitor actuator control parameters.

4. Can driving with OBDII code P16C8 cause further damage to my vehicle?

- Continuing to drive with this code can potentially lead to increased wear on engine components, transmission issues, and further damage to the front engine mount actuator.

5. How can I repair OBDII code P16C8?

- Repair options include replacing the front engine mount actuator, repairing or replacing damaged wiring in the control circuit, or reprogramming the engine control module if necessary.

6. Are there any DIY tips for fixing OBDII code P16C8?

- DIY tips include checking and securing all electrical connections related to the front engine mount actuator, inspecting for visible damage, and consulting the vehicle's repair manual for specific instructions.

7. How much does it typically cost to repair OBDII code P16C8 at a mechanic or dealership?

- The cost of repairing this code can vary depending on the extent of the damage and labor rates, but it can range from $200 to $700 for parts and labor.

8. Will resetting the OBDII code P16C8 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to return after driving the vehicle for a certain distance or time.

9. Can OBDII code P16C8 affect the vehicle's fuel efficiency?

- Yes, this code can potentially affect fuel efficiency due to engine performance issues caused by the faulty front engine mount actuator.

10. Is it safe to continue driving my vehicle with OBDII code P16C8?

- It is generally not recommended to continue driving with this code present, as it can lead to further mechanical problems and potential safety hazards.