P111D GMC Code - Intake Air Temperature Sensor 1 – Fuel Temperature Sensor 2 Correlation
Quick Answer
The Fuel Temperature Sensor 2 and Intake Air Temperature (IAT) Sensor 1 are variable resistors. Common causes include Faulty Intake Air Temperature Sensor 1, Intake Air Temperature Sensor 1 harness is open or shorted, Intake Air Temperature Sensor 1 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
- P111D GMC indicates Intake Air Temperature Sensor 1 – Fuel Temperature Sensor 2 Correlation .
- Common causes
- Common causes include Faulty Intake Air Temperature Sensor 1, Intake Air Temperature Sensor 1 harness is open or shorted, Intake Air Temperature Sensor 1 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 P111D GMC Description
What are the Possible Causes of the DTC P111D GMC?
- Faulty Intake Air Temperature Sensor 1
- Intake Air Temperature Sensor 1 harness is open or shorted
- Intake Air Temperature Sensor 1 circuit poor electrical connection
- Faulty Fuel Temperature Sensor 2
- Fuel Temperature Sensor 2 harness is open or shorted
- Fuel Temperature Sensor 2 circuit poor electrical connection
How to Fix the DTC P111D 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 P111D 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 P111D GMC Code
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