P112C GMC Code - Intake Air Temperature Sensor 3 Circuit Low Voltage
Quick Answer
The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature 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
- P112C GMC indicates Intake Air Temperature Sensor 3 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Intake Air Temperature sensor, Intake Air Temperature sensor harness is open or shorted, Intake Air Temperature 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.
Code P112C GMC Description
What are the Possible Causes of the DTC P112C GMC?
- Faulty Intake Air Temperature sensor
- Intake Air Temperature sensor harness is open or shorted
- Intake Air Temperature sensor circuit poor electrical connection
How to Fix the DTC P112C GMC?
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 P112C GMC 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 P112C GMC Code
1. What are common symptoms of OBDII code P112C GMC (Intake Air Temperature Sensor 3 Circuit Low Voltage)?
The common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the Check Engine Light.
2. What can cause the OBDII code P112C GMC to trigger?
The code P112C GMC typically triggers due to a faulty intake air temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.
3. How can I diagnose the cause of OBDII code P112C GMC?
Diagnosing the code involves checking the intake air temperature sensor's resistance, inspecting the wiring and connectors for damage, and testing the sensor circuit for continuity.
4. Can a dirty air filter cause the OBDII code P112C GMC to appear?
A dirty air filter is unlikely to directly cause the code P112C GMC. However, a clogged air filter can indirectly affect the intake air temperature sensor's readings, leading to potential issues.
5. What are some repair tips for fixing OBDII code P112C GMC?
Repair tips include replacing the intake air temperature sensor if faulty, repairing damaged wiring or connectors, clearing the code with an OBDII scanner, and conducting a thorough inspection of the intake system.
6. How urgent is it to address OBDII code P112C GMC?
While the vehicle may still be driveable with this code, it is important to address it promptly to prevent further damage to the engine or emissions system and restore optimal performance.
7. Can I reset the OBDII code P112C GMC without fixing the underlying issue?
Resetting the code without fixing the underlying issue will only temporarily turn off the Check Engine Light. The problem will likely resurface if the root cause is not addressed.
8. Is it safe to continue driving with OBDII code P112C GMC present?
It is generally safe to drive with this code present, but it is recommended to address it as soon as possible to avoid potential long-term damage or performance issues.
9. Will disconnecting the battery reset OBDII code P112C GMC?
Disconnecting the battery may reset the code temporarily, but it is not a guaranteed fix. The underlying issue causing the code will need to be resolved to prevent it from reappearing.
10. How much does it typically cost to repair OBDII code P112C GMC at a mechanic?
The cost of repairing this code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor at a mechanic.
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