P1112 Dodge Code - Intake Air Temperature Sensor Circuit Intermittent Low Voltage
Quick Answer
The P1112 diagnostic trouble code for Dodge vehicles indicates an issue with the Intake Air Temperature (IAT) Sensor Circuit having intermittent low voltage. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections. 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
- P1112 Dodge indicates Intake Air Temperature Sensor Circuit Intermittent Low Voltage.
- Common causes
- Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections.
- 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 P1112 Dodge Description
The P1112 diagnostic trouble code for Dodge vehicles indicates an issue with the Intake Air Temperature (IAT) Sensor Circuit having intermittent low voltage. The IAT sensor is responsible for measuring the temperature of the air entering the engine. This information is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the ECM detects a low voltage signal from the IAT sensor intermittently, it can lead to incorrect air-fuel ratios, affecting engine performance, emissions, and overall efficiency.
Common Causes of P1112 Dodge
- Faulty Intake Air Temperature (IAT) sensor.
- Damaged wiring or connectors in the sensor circuit.
- Corrosion or contamination in the sensor connections.
- Issues with the Engine Control Module (ECM).
- Environmental factors such as extreme temperatures affecting sensor performance.
Symptoms of P1112 Dodge
- Check engine light illuminated on the dashboard.
- Decreased fuel efficiency.
- Rough idling or stalling.
- Hesitation or lack of power during acceleration.
- Engine misfires.
How to Fix P1112 Dodge
- Begin by connecting a diagnostic scanner to retrieve the specific fault codes and confirm P1112 related to the IAT sensor.
- Inspect the wiring and connectors in the sensor circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the IAT sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
- Clear the fault codes and reset the ECM to see if the issue persists.
- Perform a test drive to monitor the vehicle's performance and verify that the symptoms associated with the P1112 code have been resolved.
Cost to Fix P1112 Dodge
The cost estimate for repairing a P1112 code related to the Intake Air Temperature Sensor Circuit could range from $100 to $300, depending on the specific cause of the issue and the cost of parts. This estimate includes the cost of a new IAT sensor, wiring repairs or replacements, diagnostic labor, and any additional parts or services required. It is important to note that labor rates at auto repair shops can vary, so it is advisable to obtain quotes from multiple sources to ensure a competitive price.
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