AutoCodes – Honda – P16C5 Honda

P16C5 Honda Code - Engine Mount Actuator Control Power Circuit Stuck On

Quick Answer

The engine mount control system controls the engine mounts electronically. Common causes include Faulty Engine Mount Actuator, Engine Mount Actuator harness is open or shorted, 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: P16C5 Honda indicates Engine Mount Actuator Control Power Circuit Stuck On.
Common causes: Common causes include Faulty Engine Mount Actuator, Engine Mount Actuator harness is open or shorted, 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.

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Code Popularity 1,330

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
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Code P16C5 Honda 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 P16C5 Honda - Engine Mount Actuator Control Power Circuit Stuck On - AutoCodes.com — P16C5 Honda Code - Engine Mount Actuator Control Power Circuit Stuck On

What does this mean?

What are the Possible Causes of the DTC P16C5 Honda?

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

How to Fix the DTC P16C5 Honda?

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 P16C5 Honda 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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Need more information on how to fix the P16C5 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P16C5 Honda Code

1. What are the common symptoms of OBDII code P16C5 in a Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

The common symptoms include rough idling, vibrating or shaking engine, and potential loss of power or acceleration.

2. What could cause the Engine Mount Actuator Control Power Circuit to be stuck on, triggering code P16C5 in a Honda?

Possible causes include a faulty engine mount actuator, damaged wiring or connectors, a malfunctioning control module, or a problem in the actuator control power circuit.

3. How can I diagnose the issue causing OBDII code P16C5 in my Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

You can start by checking the wiring and connectors for any damage, testing the engine mount actuator for proper functionality, and using a scan tool to monitor the control module's operation.

4. Can driving with OBDII code P16C5 in a Honda be harmful to the vehicle?

Continued driving with this issue may cause further damage to the engine mounts, affect the vehicle's performance, and potentially lead to more costly repairs over time.

5. What are some repair tips for fixing OBDII code P16C5 in a Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

Repair tips include replacing a faulty engine mount actuator, repairing or replacing damaged wiring or connectors, resetting the control module, and ensuring proper installation to fix the issue.

6. Is it possible to reset the OBDII code P16C5 in a Honda without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it's crucial to address the root cause of the problem to prevent the code from reappearing and causing further issues.

7. How much does it typically cost to repair OBDII code P16C5 in a Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

The cost of repairs can vary depending on the cause of the issue, but it's recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.

8. Can I fix OBDII code P16C5 in a Honda by myself, or should I seek professional help?

If you have experience with automotive repairs and diagnostics, you may be able to address the issue yourself. However, complex electrical or mechanical problems should be handled by a qualified mechanic.

9. Are there any preventative measures to avoid encountering OBDII code P16C5 in a Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

Regular maintenance checks, including inspecting engine mounts, monitoring for unusual vibrations, and addressing any issues promptly, can help prevent this code from occurring.

10. How urgent is it to address OBDII code P16C5 in a Honda related to the Engine Mount Actuator Control Power Circuit Stuck On?

While the vehicle may still be driveable with this code, it's important to address the issue promptly to prevent further damage, ensure optimal performance, and avoid potential safety risks.