P0112 2011 Nissan Altima Sedan Code - Intake Air Temperature Circuit Low Input
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
- P0112 2011 Nissan Altima Sedan indicates Intake Air Temperature Circuit Low Input.
- 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 P0112 2011 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P0112 2011 Nissan Altima Sedan?
- 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 P0112 2011 Nissan Altima Sedan?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0112 2011 Nissan Altima Sedan 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 P0112 2011 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0112 on a 2011 Nissan Altima Sedan?
- Common symptoms include poor fuel economy, rough idling, engine stalling, and a decrease in overall engine performance.
2. What does the OBDII code P0112 "Intake Air Temperature Circuit Low Input" mean for a 2011 Nissan Altima Sedan?
- This code indicates that the engine control module (ECM) has detected a low input signal from the intake air temperature (IAT) sensor.
3. What are the possible causes of OBDII code P0112 on a 2011 Nissan Altima Sedan?
- Possible causes include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or issues with the ECM itself.
4. How can I diagnose the cause of OBDII code P0112 on my 2011 Nissan Altima Sedan?
- To diagnose the issue, you can use a multimeter to test the IAT sensor's resistance, check the wiring for any damage, and inspect the connectors for corrosion.
5. Can I drive my 2011 Nissan Altima Sedan with the OBDII code P0112 present?
- It is not recommended to drive your vehicle with this code present, as it can lead to further engine performance issues and potential damage.
6. How can I repair OBDII code P0112 on a 2011 Nissan Altima Sedan?
- Repairing this code typically involves replacing the faulty IAT sensor, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.
7. Are there any DIY tips for fixing OBDII code P0112 on a 2011 Nissan Altima Sedan?
- While replacing the IAT sensor is relatively straightforward, diagnosing and repairing wiring issues may require more advanced skills and tools, so it's recommended to consult a professional mechanic.
8. Will resetting the OBDII code P0112 on my 2011 Nissan Altima Sedan make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not fixed, it is likely to reappear.
9. How much does it cost to fix OBDII code P0112 on a 2011 Nissan Altima Sedan at a repair shop?
- The cost of fixing this code can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.
10. Can a faulty IAT sensor causing OBDII code P0112 affect the overall performance of my 2011 Nissan Altima Sedan?
- Yes, a faulty IAT sensor can impact the air-fuel mixture, ignition timing, and other engine functions, leading to decreased performance and fuel efficiency.
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