AutoCodes – Generic – P116C

P116C Code - Air Mass Flow Sensor Signal Range

Quick Answer

The Engine Control Module (ECM) monitors the Air Mass Flow Sensor. Common causes include Faulty Air Mass Flow Sensor, Air Mass Flow Sensor harness is open or shorted, Air Mass Flow Sensor 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: P116C indicates Air Mass Flow Sensor Signal Range.
Common causes: Common causes include Faulty Air Mass Flow Sensor, Air Mass Flow Sensor harness is open or shorted, Air Mass Flow Sensor 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 2,577

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 Jul 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P116C Description

The Engine Control Module (ECM) monitors the Air Mass Flow Sensor. The ECM sets the OBDII code when the Air Mass Flow Sensor is no factory specifications.

OBDII Code P116C - Air Mass Flow Sensor Signal Range - AutoCodes.com — P116C Code - Air Mass Flow Sensor Signal Range

What does this mean?

What are the Possible Causes of the DTC P116C?

Faulty Air Mass Flow Sensor
Air Mass Flow Sensor harness is open or shorted
Air Mass Flow Sensor circuit poor electrical connection

How to Fix the DTC P116C?

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 P116C 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 P116C code?

Need more information on how to fix the P116C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P116C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P116C BMW — Air Mass Flow Sensor Signal Range
P116C Buick — O2 Signal Circuit High Voltage (NOx Sensor 1)
P116C Cadillac — O2 Signal Circuit High Voltage (NOx Sensor 1)
P116C Chevrolet — O2 Signal Circuit High Voltage (NOx Sensor 1)
P116C GMC — O2 Signal Circuit High Voltage (NOx Sensor 1)
P116C MINI — Air Mass Flow Sensor Signal Range

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 P116C Code

1. What are the common symptoms of OBDII code P116C (Air Mass Flow Sensor Signal Range)?

- Common symptoms include a decrease in engine performance, rough idling, stalling, and poor fuel efficiency.

2. What causes OBDII code P116C to trigger?

- This code is typically triggered by a faulty air mass flow sensor, air intake leaks, vacuum leaks, or issues with the engine's air/fuel mixture.

3. How can I diagnose the cause of OBDII code P116C?

- Diagnosing the issue involves checking the air mass flow sensor for proper operation, inspecting for any air or vacuum leaks in the intake system, and verifying the air/fuel mixture ratios.

4. Can a dirty air filter trigger code P116C?

- Yes, a dirty air filter can impact the air mass flow sensor's readings and potentially trigger OBDII code P116C.

5. What are some repair tips for resolving OBDII code P116C?

- Repair tips include cleaning or replacing the air filter, inspecting and repairing any air intake or vacuum leaks, and replacing the air mass flow sensor if necessary.

6. Is it safe to continue driving with OBDII code P116C present?

- It is not recommended to continue driving with this code present, as it can lead to further engine performance issues and potential damage if left unresolved.

7. Can a software update fix OBDII code P116C?

- In some cases, a software update from the manufacturer may address issues related to the air mass flow sensor signal range and clear the code.

8. How much does it typically cost to repair OBDII code P116C?

- The cost can vary depending on the underlying cause, but repairs for this code can range from a simple air filter replacement to more involved sensor replacements, costing anywhere from $50 to $500 or more.

9. Will disconnecting the car battery reset OBDII code P116C?

- Disconnecting the car battery may temporarily clear the code, but it is not a permanent solution if the underlying issue causing the code to trigger is not addressed.

10. Can a mechanic easily fix OBDII code P116C, or is it a DIY repair?

- While some simple repairs like replacing the air filter can be done DIY, diagnosing and resolving the root cause of OBDII code P116C often requires the expertise of a qualified mechanic.