AutoCodes – Honda – P16F1 Honda

P16F1 Honda Code - ECM Internal Circuit Malfunction Starter Control Circuit Malfunction

Quick Answer

The Engine Control Module (ECM) monitors the ECM Internal Circuit Malfunction Starter Control. Common causes include Reprogram Engine Control Module (ECM), Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted. 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: P16F1 Honda indicates ECM Internal Circuit Malfunction Starter Control Circuit Malfunction.
Common causes: Common causes include Reprogram Engine Control Module (ECM), Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted.
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 1,337

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 P16F1 Honda Description

The Engine Control Module (ECM) monitors the ECM Internal Circuit Malfunction Starter Control. The ECM sets the OBDII code when the Engine Control Module ECM Internal Circuit Malfunction Starter Control is not to factory specifications.

OBDII Code P16F1 Honda - ECM Internal Circuit Malfunction Starter Control Circuit Malfunction - AutoCodes.com — P16F1 Honda Code - ECM Internal Circuit Malfunction Starter Control Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P16F1 Honda?

Reprogram Engine Control Module (ECM)
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 P16F1 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 P16F1 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.

Need more information about the P16F1 Honda code?

Need more information on how to fix the P16F1 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16F1 Honda code diagnosed by a professional: Find a repair shop in your area

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 P16F1 Honda Code

1. What does the OBDII code P16F1 mean on a Honda?

P16F1 indicates an ECM Internal Circuit Malfunction related to the Starter Control Circuit, meaning the Engine Control Module (ECM) has detected an issue with the internal circuitry responsible for controlling the starter.

2. What are the common symptoms of a P16F1 code in a Honda?

Symptoms may include difficulty starting the engine, the starter not engaging, the check engine light being illuminated, or intermittent starting issues.

3. What causes the P16F1 code to appear on a Honda?

Common causes include a faulty ECM, wiring issues in the starter control circuit, a damaged starter relay, or a failing starter motor.

4. Can a weak battery trigger the P16F1 code?

Yes, a weak or failing battery can cause voltage irregularities that may lead to this code being set, as the ECM relies on stable power to function properly.

5. How do you diagnose the P16F1 code in a Honda?

Diagnosis involves checking the ECM for faults, inspecting wiring and connectors in the starter control circuit, testing the starter relay, and verifying proper battery voltage and ground connections.

6. Can the P16F1 code cause the car not to start at all?

Yes, if the ECM cannot properly control the starter circuit, it may prevent the engine from starting entirely.

7. Is it safe to drive with the P16F1 code on a Honda?

While the car may still start intermittently, driving with this code is risky as it could leave you stranded if the starter fails completely.

8. How is the P16F1 code fixed on a Honda?

Repairs may include replacing the ECM, repairing or replacing damaged wiring, replacing the starter relay, or repairing the starter motor.

9. How much does it cost to fix the P16F1 code on a Honda?

The cost varies depending on the issue, but ECM replacement can range from $500 to $1,500, while wiring or starter relay repairs are generally less expensive.

10. Can I reset the P16F1 code without repairs?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely return as the underlying problem persists.