AutoCodes – GMC – P007C GMC

P007C GMC Code - Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage

Quick Answer

The Charge Air Cooler (CAC) Temperature Sensor 1 is a variable resistor. Common causes include Faulty Charge Air Cooler (CAC) Temperature Sensor, Charge Air Cooler Temperature Sensor harness is open or shorted, Charge Air Cooler 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: P007C GMC indicates Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage.
Common causes: Common causes include Faulty Charge Air Cooler (CAC) Temperature Sensor, Charge Air Cooler Temperature Sensor harness is open or shorted, Charge Air Cooler 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.

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Code Popularity 505

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P007C GMC Description

The Charge Air Cooler (CAC) Temperature Sensor 1 is a variable resistor. The sensor is located at the turbocharger outlet. Its signal is used by the Engine Control Module (ECM) to measure the temperature of the intake air entering the CAC. The ECM supplies 5 V to the signal circuit and a ground for the low reference circuit. The ECM continuously monitors the sensor signal for an excessively high or low voltage, or for a start-up signal that is not in correlation with the Intake Air Temperature (IAT) Sensor start-up signal and Fuel Temperature Sensor. The Diagnostic Trouble Code (DTC) will be set if the Charge Air Cooler Temperature Sensor 1 signal is warmer than 300°C (572°F) for greater than 6.5 s.

OBDII Code P007C GMC - Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage - AutoCodes.com — P007C GMC Code - Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P007C GMC?

Faulty Charge Air Cooler (CAC) Temperature Sensor
Charge Air Cooler Temperature Sensor harness is open or shorted
Charge Air Cooler Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P007C 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 P007C 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.

Need more information about the P007C GMC code?

Need more information on how to fix the P007C GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P007C GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P007C 2014 GMC Sierra — Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage
P007C 2015 GMC Sierra — Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage
P007C 2016 GMC Sierra — Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage
P007C 2017 GMC Sierra — Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage
P007C 2018 GMC Sierra — Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P007C GMC Code

1. What are the common symptoms of OBDII code P007C in a GMC vehicle?

The common symptoms of OBDII code P007C include poor engine performance, reduced fuel efficiency, and potentially an illuminated check engine light on the dashboard.

2. What does the OBDII code P007C GMC indicate?

OBDII code P007C indicates an issue with the Charge Air Cooler Temperature Sensor 1 Circuit registering low voltage in a GMC vehicle.

3. What are the possible causes of OBDII code P007C in a GMC vehicle?

Possible causes of OBDII code P007C in a GMC vehicle include a faulty charge air cooler temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose the cause of OBDII code P007C in my GMC vehicle?

Diagnosing the cause of OBDII code P007C typically involves using a scan tool to read the code, checking the charge air cooler temperature sensor and its wiring for faults, and testing the sensor's voltage output.

5. Can I continue driving my GMC vehicle with OBDII code P007C present?

It is not recommended to continue driving your GMC vehicle with OBDII code P007C present, as it can lead to further engine damage and decreased performance if left unresolved.

6. How can I repair OBDII code P007C in my GMC vehicle?

Repairing OBDII code P007C may involve replacing the charge air cooler temperature sensor, repairing or replacing damaged wiring or connectors, or resetting the engine control module after fixing the issue.

7. Is it possible to clear OBDII code P007C in my GMC vehicle without fixing the underlying problem?

While it is possible to clear OBDII codes using a scan tool, it is not recommended to do so without fixing the underlying issue causing the code, as the problem may persist and lead to further complications.

8. Can extreme weather conditions affect the occurrence of OBDII code P007C in a GMC vehicle?

Extreme weather conditions, especially very cold temperatures, can impact the operation of the charge air cooler temperature sensor and potentially trigger OBDII code P007C in a GMC vehicle.

9. How long does it typically take to repair OBDII code P007C in a GMC vehicle?

The time it takes to repair OBDII code P007C in a GMC vehicle can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

10. Should I seek professional help to repair OBDII code P007C in my GMC vehicle?

If you are not familiar with automotive diagnostics and repairs, it is recommended to seek professional help to diagnose and repair OBDII code P007C in your GMC vehicle to ensure the issue is properly resolved.