P0112 – Intake Air Temperature Circuit Low Input
Introduction
The P0112 error code on Chery is a fairly common issue that many drivers face.
**The P0112 error code is most likely caused by a faulty intake air temperature sensor or a wiring issue, resulting in a low severity level and moderate urgency of repair.**
**The code may not immediately affect the vehicle’s overall performance, but it can lead to decreased fuel efficiency and potentially cause more severe problems if left unaddressed.**
**It is essential to diagnose and fix the P0112 trouble code as soon as possible to prevent further damage and ensure the vehicle runs smoothly.**
WHAT DOES CODE P0112 MEAN
The P0112 error code is technically defined as an “Intake Air Temperature Circuit Low Input,” which means the engine control module (ECM) is receiving a lower than expected voltage signal from the intake air temperature sensor. This sensor is a crucial component of the engine management system, as it provides vital data on the air temperature entering the engine, allowing the ECM to adjust fuel injection, ignition timing, and other parameters accordingly. The impact of the P0112 code on engine performance can be significant, as it may cause the engine to run rich or lean, leading to decreased fuel efficiency, reduced power output, and potentially even engine damage.
COMMON Chery MODELS AFFECTED
The P0112 error code can affect various Chery models, including:
- Chery Tiggo
- Chery Arrizo
- Chery Fulwin
- Chery Cowin
- Chery Karry
SYMPTOMS TABLE
The following symptoms may be associated with the P0112 error code:
| Symptom | Frequency of Occurrence |
|---|---|
| Decreased fuel efficiency | High |
| Reduced engine power | Medium |
| Difficulty starting the engine | Low |
| Check Engine Light illumination | High |
| Unstable engine idle | Medium |
| Poor engine performance during acceleration | Medium |
| Increased emissions | Individual |
CAUSES TABLE
The P0112 error code may be caused by the following factors:
| Potential Cause | Probability |
|---|---|
| Faulty intake air temperature sensor | High |
| Wiring issue or short circuit | Medium |
| Corrosion or damage to the sensor connector | Low |
| ECM malfunction or software issue | Low |
| Vacuum leaks or intake manifold issues | Medium |
REAL-WORLD DRIVING SCENARIOS
In real-world driving scenarios, the P0112 error code may manifest in various ways. For example, during cold starts, the engine may struggle to idle smoothly or may produce a rough idle. When accelerating, the engine may hesitate or stumble, and fuel consumption may increase. On the highway, the engine may run hotter than usual, and the vehicle may experience a decrease in overall performance.
DIAGNOSTIC STEPS
To diagnose the P0112 error code, follow these steps:
1. Use a scan tool to retrieve the trouble code and any related data.
2. Inspect the intake air temperature sensor and its wiring for any signs of damage or corrosion.
3. Check the sensor’s voltage output using a multimeter.
4. Perform a visual inspection of the engine and its components to identify any potential vacuum leaks or other issues.
5. Use a scan tool to monitor the engine’s performance and adjust the ignition timing and fuel injection accordingly.
COMMON DIAGNOSTIC MISTAKES
When diagnosing the P0112 error code, common mistakes include:
1. Replacing the intake air temperature sensor without checking the wiring and connections.
2. Failing to inspect the engine and its components for vacuum leaks or other issues.
3. Not using a scan tool to retrieve the trouble code and related data.
4. Not performing a thorough visual inspection of the sensor and its wiring.
5. Not considering other potential causes, such as ECM malfunction or software issues.
WHEN NOT TO REPLACE THE SENSOR
Replacing the intake air temperature sensor may not solve the issue if the problem lies with the wiring, vacuum leaks, or other engine components. In such cases, it is essential to address the underlying issue before replacing the sensor.
HOW TO FIX
To fix the P0112 error code, follow these steps:
1. Inspect and repair any wiring issues or corrosion.
2. Replace the intake air temperature sensor if necessary.
3. Address any vacuum leaks or other engine component issues.
4. Update the ECM software if necessary.
5. Use a scan tool to clear the trouble code and monitor the engine’s performance.
SEVERITY LEVEL
The P0112 error code is considered a moderate severity level issue, as it may not immediately affect the vehicle’s overall performance but can lead to decreased fuel efficiency and potentially cause more severe problems if left unaddressed. The urgency of repair is moderate, as the issue should be addressed as soon as possible to prevent further damage.
IS IT SAFE TO DRIVE WITH THIS CODE
It is generally safe to drive with the P0112 error code, but it is essential to be aware of the potential risks and limitations. The vehicle may experience decreased fuel efficiency, reduced engine power, and potentially even engine damage if the issue is not addressed.
ESTIMATED REPAIR COST
The estimated repair cost for the P0112 error code can range from $50 to $500, depending on the underlying cause and the necessary repairs.
PREVENTIVE MAINTENANCE TIPS
To prevent the P0112 error code, regular maintenance is essential. This includes:
1. Regularly inspecting the intake air temperature sensor and its wiring.
2. Checking the engine and its components for vacuum leaks or other issues.
3. Updating the ECM software regularly.
4. Using a scan tool to monitor the engine’s performance and address any issues promptly.
When dealing with the P0112 error code on Chery vehicles, it is essential to consider the vehicle’s specific make and model, as well as its maintenance history. A thorough inspection and diagnosis are crucial to identifying the underlying cause and ensuring the correct repairs are made.
TOOLS REQUIRED FOR DIAGNOSTICS
The following tools are required for diagnosing the P0112 error code:
- Scan tool
- Multimeter
- Wiring diagram
- Service manual
TECHNICAL REFERENCE VALUES
The following technical reference values are relevant to the P0112 error code:
| Parameter | Normal Range | Fault Indication Behavior |
|---|---|---|
| Intake air temperature sensor voltage | 0.5-4.5V | Below 0.5V or above 4.5V |
| Engine coolant temperature sensor voltage | 0.5-4.5V | Below 0.5V or above 4.5V |
18. FAQ
What does code P0112 mean?
The P0112 error code is defined as an “Intake Air Temperature Circuit Low Input,” which means the engine control module (ECM) is receiving a lower than expected voltage signal from the intake air temperature sensor. This code is often linked to a faulty intake air temperature sensor or a wiring issue, and diagnosing the P0112 code requires a thorough inspection and analysis of the engine’s components.
Is it safe to drive with code P0112?
It is generally safe to drive with the P0112 error code, but it is essential to be aware of the potential risks and limitations. The vehicle may experience decreased fuel efficiency, reduced engine power, and potentially even engine damage if the issue is not addressed. Fixing the P0112 code is crucial to prevent further damage and ensure the vehicle runs smoothly.
Will the code clear itself?
The P0112 error code will not clear itself, and it requires a scan tool to clear the trouble code and monitor the engine’s performance. The code is often associated with a faulty intake air temperature sensor or a wiring issue, and addressing the underlying cause is essential to prevent the code from reappearing.
Does the sensor need replacement?
The intake air temperature sensor may need replacement if it is faulty or damaged. However, it is essential to inspect the wiring and connections before replacing the sensor, as a wiring issue or corrosion may be the underlying cause of the P0112 error code. Diagnosing the P0112 code requires a thorough analysis of the engine’s components, and replacing the sensor may not solve the issue if the problem lies with the wiring or other engine components.
How much does it cost to fix?
The estimated repair cost for the P0112 error code can range from $50 to $500, depending on the underlying cause and the necessary repairs. The cost of fixing the P0112 code may vary depending on the vehicle’s make and model, as well as the labor costs and replacement parts required.
RELATED TROUBLE CODES
The following trouble codes are related to the P0112 error code:
- Error P0113 on Chery — Intake Air Temperature Circuit High Input
- Error P0115 on Chery — Engine Coolant Temperature Circuit Malfunction
- Error P0122 on Chery — Throttle Position Sensor Circuit Low Input