AutoCodes – GMC – P007C 2017 GMC Sierra

P007C 2017 GMC Sierra 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 2017 GMC Sierra 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 173

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 2017 GMC Sierra 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 2017 GMC Sierra - Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage - AutoCodes.com — P007C 2017 GMC Sierra Code - Charge Air Cooler Temperature Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P007C 2017 GMC Sierra?

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 2017 GMC Sierra?

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 2017 GMC Sierra 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 2017 GMC Sierra code?

Need more information on how to fix the P007C 2017 GMC Sierra code? Get Access to Factory Service Manuals

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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 2017 GMC Sierra Code

What does OBDII code P007C mean for a 2017 GMC Sierra?

OBDII code P007C indicates a low voltage reading from the Charge Air Cooler Temperature Sensor 1 circuit, which monitors the temperature of the air entering the engine.

What are the common symptoms of a P007C code?

Common symptoms include poor engine performance, reduced fuel efficiency, check engine light activation, and possible overheating of the engine.

What could cause the P007C code to trigger?

Potential causes include a faulty charge air cooler temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

How can I diagnose a P007C code?

To diagnose a P007C code, start by inspecting the wiring and connectors for damage, test the sensor's resistance and voltage output, and check for other related trouble codes.

Is it safe to drive with a P007C code?

While it may be safe to drive short distances, it is advisable to address the issue promptly to avoid potential engine performance problems or damage.

What repairs are recommended for a P007C code?

Repairs may include replacing the charge air cooler temperature sensor, repairing any damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.

Can I reset the check engine light after fixing the P007C code?

Yes, after repairing the issue, you can reset the check engine light using an OBDII scanner. The light should stay off if the problem is resolved.

How much does it typically cost to fix a P007C code?

Repair costs can vary widely, typically ranging from $100 to $400, depending on whether the issue is a simple wiring fix or requires replacing the sensor.

Will clearing the P007C code fix the underlying problem?

No, clearing the code will only turn off the check engine light. The underlying issue must be repaired to prevent the code from reappearing.