AutoCodes – Cadillac – P00F6 Cadillac

P00F6 Cadillac Code - Intake Air Humidity Sensor Circuit Erratic

Quick Answer

The Intake Air Humidity Sensor measures the ambient humidity of the air in the sensor bore. Common causes include Faulty Intake Air Humidity Sensor, Intake Air Humidity Sensor harness is open or shorted, Intake Air Humidity 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: P00F6 Cadillac indicates Intake Air Humidity Sensor Circuit Erratic.
Common causes: Common causes include Faulty Intake Air Humidity Sensor, Intake Air Humidity Sensor harness is open or shorted, Intake Air Humidity 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 1,611

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 May 17, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P00F6 Cadillac Description

The Intake Air Humidity Sensor measures the ambient humidity of the air in the sensor bore. The signal varies with intake air humidity and is displayed by the scan tool as duty cycle %. The Engine Control Module (ECM) applies 5 V to the circuit. The signal circuit is shared by the humidity sensor and the Intake Air Temperature (IAT) sensor 2. Ignition voltage and ground circuits are also supplied to the multifunction intake air sensor's internal circuits for these sensors: IAT sensor 2, Humidity sensor, and MAF sensor. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the humidity sensor signal is intermittent or has abruptly changed over a period of time greater than 5 s.

OBDII Code P00F6 Cadillac - Intake Air Humidity Sensor Circuit Erratic - AutoCodes.com — P00F6 Cadillac Code - Intake Air Humidity Sensor Circuit Erratic

What does this mean?

What are the Possible Causes of the DTC P00F6 Cadillac?

Faulty Intake Air Humidity Sensor
Intake Air Humidity Sensor harness is open or shorted
Intake Air Humidity Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P00F6 Cadillac?

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 does this mean?

Code Tech Notes

The Intake Air Humidity Sensor is part of the Mass Air Flow Sensor, Humidity Sensor, BARO Sensor, and Intake Air Temperature 1 and 2 Sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P00F6 Cadillac 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 P00F6 Cadillac code?

Need more information on how to fix the P00F6 Cadillac 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 P00F6 Cadillac Code

1. What are the common symptoms of OBDII code P00F6 in a Cadillac related to the Intake Air Humidity Sensor Circuit Erratic?

The common symptoms include decreased engine performance, rough idling, and potential stalling of the vehicle.

2. What are the possible causes of the OBDII code P00F6 in a Cadillac?

The code P00F6 is typically triggered by a faulty intake air humidity sensor, damaged wiring or connectors in the sensor circuit, or a problem with the sensor's signal to the engine control module (ECM).

3. How can I diagnose the issue causing the OBDII code P00F6 in my Cadillac?

To diagnose the issue, you can use a diagnostic scanner to read the code and perform a visual inspection of the intake air humidity sensor and its wiring for any signs of damage or corrosion.

4. Can I drive my Cadillac with the OBDII code P00F6 present?

It is not recommended to drive the vehicle with the code P00F6 present as it can lead to further damage to the engine and potentially cause safety issues due to erratic engine behavior.

5. How can I repair the Intake Air Humidity Sensor Circuit Erratic issue in my Cadillac?

The repair process may involve replacing the faulty intake air humidity sensor, repairing damaged wiring or connectors, or reprogramming the ECM to ensure proper communication with the sensor.

6. Are there any DIY tips for fixing the OBDII code P00F6 in a Cadillac?

While some basic troubleshooting steps can be taken, it is recommended to consult a professional mechanic to accurately diagnose and repair the Intake Air Humidity Sensor Circuit Erratic issue.

7. Can a dirty air filter cause the OBDII code P00F6 in a Cadillac?

A dirty air filter may indirectly affect the intake air humidity sensor's readings, but it is not a direct cause of the code P00F6. It is still essential to maintain a clean air filter for optimal engine performance.

8. How long does it typically take to repair the Intake Air Humidity Sensor Circuit Erratic issue in a Cadillac?

The repair time can vary depending on the exact cause of the code P00F6, but it usually takes a few hours to a day for a professional mechanic to diagnose and fix the problem.

9. Will resetting the OBDII code P00F6 in my Cadillac make it go away permanently?

Resetting the code may temporarily clear the error, but if the underlying issue causing the Intake Air Humidity Sensor Circuit Erratic problem is not addressed, the code is likely to reappear.

10. Is the OBDII code P00F6 specific to Cadillac vehicles, or can it occur in other car makes and models?

While the specific code P00F6 may vary by manufacturer, similar issues related to the intake air humidity sensor circuit can be present in other car makes and models, requiring similar diagnostic and repair steps.