AutoCodes – Buick – P007D Buick

P007D Buick Code - Charge Air Cooler Temperature Sensor 1 Circuit High 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: P007D Buick indicates Charge Air Cooler Temperature Sensor 1 Circuit High 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 494

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 P007D Buick 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 colder than -40°C (-40°F) for greater than 6.5 s.

OBDII Code P007D Buick - Charge Air Cooler Temperature Sensor 1 Circuit High Voltage - AutoCodes.com — P007D Buick Code - Charge Air Cooler Temperature Sensor 1 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P007D Buick?

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 P007D Buick?

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 P007D Buick 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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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 P007D Buick Code

What does the OBDII code P007D mean for a Buick?

The OBDII code P007D indicates that there is a high voltage condition in the Charge Air Cooler Temperature Sensor 1 circuit, which may lead to incorrect temperature readings.

What are the common symptoms associated with the P007D code?

Common symptoms include poor engine performance, reduced fuel efficiency, a check engine light, and potential overheating issues.

What causes the P007D code to trigger?

The code can be triggered by a faulty Charge Air Cooler Temperature Sensor, damaged wiring or connectors, or issues with the engine control module (ECM).

How can I diagnose the P007D code?

Start by using an OBDII scanner to confirm the code. Inspect the Charge Air Cooler Temperature Sensor and its wiring for damage or corrosion. Testing the sensor's resistance can also help determine if it is faulty.

What are some common repairs for the P007D code?

Common repairs include replacing the Charge Air Cooler Temperature Sensor, repairing or replacing damaged wiring or connectors, and reprogramming or replacing the ECM if necessary.

Will driving with the P007D code cause further damage to my vehicle?

While it may not cause immediate damage, driving with this code can lead to poor engine performance and reduced fuel efficiency, which can worsen over time.

How can I prevent the P007D code from occurring in the future?

Regular maintenance, including checking sensor connections and wiring for wear or corrosion, can help prevent issues. Keeping the engine and cooling system in good condition is also important.

Is it safe to ignore the P007D code?

It is not advisable to ignore the P007D code, as it may lead to performance issues and potentially damage other engine components over time.

Can I clear the P007D code without making repairs?

While you can clear the code using an OBDII scanner, it will likely reappear if the underlying issue is not addressed. It's best to diagnose and repair the problem before clearing the code.