P0111 Subaru Code - Intake Air Temperature Circuit Range/Performance Problem
Quick Answer
The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor 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
- P0111 Subaru indicates Intake Air Temperature Circuit Range/Performance Problem.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) sensor, Dirty air filter, Intake Air Temperature (IAT) sensor 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.
Code P0111 Subaru Description
What are the Possible Causes of the DTC P0111 Subaru?
- Faulty Intake Air Temperature (IAT) sensor
- Dirty air filter
- Intake Air Temperature (IAT) sensor harness is open or shorted
- Intake Air Temperature (IAT) sensor circuit poor electrical connection
How to Fix the DTC P0111 Subaru?
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 P0111 Subaru 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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Frequently Asked Questions about P0111 Subaru Code
What does the OBDII code P0111 mean for a Subaru?
P0111 indicates a problem with the Intake Air Temperature (IAT) sensor's circuit, specifically a range or performance issue.
What are the common symptoms of code P0111 in a Subaru?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, hard starting, and the Check Engine Light turning on.
What causes the P0111 code on a Subaru?
Possible causes include a faulty IAT sensor, damaged wiring or connectors, a dirty or clogged air filter, or issues with the engine control module (ECM).
Can I drive my Subaru with the P0111 code?
While the car may still be drivable, prolonged driving with this code can lead to reduced engine efficiency and potential damage. It's best to address it promptly.
How do I fix the P0111 code in my Subaru?
Repairing the code may involve cleaning or replacing the IAT sensor, fixing damaged wiring or connectors, replacing the air filter, or diagnosing ECM issues.
Where is the Intake Air Temperature (IAT) sensor located in a Subaru?
The IAT sensor is typically located near the air intake system, often integrated into the mass air flow (MAF) sensor or air filter housing.
Can a dirty air filter cause the P0111 code in a Subaru?
Yes, a clogged air filter can affect airflow and cause incorrect readings from the IAT sensor, contributing to the P0111 code.
How can I test the IAT sensor on my Subaru for the P0111 code?
You can test the IAT sensor using a multimeter to check its resistance and ensure it changes with varying air temperatures.
Does the P0111 code affect fuel efficiency in a Subaru?
Yes, this code can lead to incorrect air temperature readings, causing the ECM to adjust fuel delivery improperly, which reduces fuel efficiency.
How much does it typically cost to fix the P0111 code on a Subaru?
Repair costs can vary, but replacing an IAT sensor usually costs $100-$300, depending on the part and labor rates.
Discuss the causes and fixes for P0111 Subaru OBDII Code
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