AutoCodes – Generic – P007B

P007B Code - Charge Air Cooler Temperature Sensor 1 Performance

Quick Answer

The Charge Air Cooler (CAC) Temperature Sensor 1 is a variable resistor. Common causes include Faulty Charge Air Cooler 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: P007B indicates Charge Air Cooler Temperature Sensor 1 Performance.
Common causes: Common causes include Faulty Charge Air Cooler 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 15,690

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 P007B 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 when the ECM detects a difference of greater than 20°C (68°F) between CAC temperature sensor 1 and the combined average temperature of IAT 3 and the fuel temperature sensor.

OBDII Code P007B - Charge Air Cooler Temperature Sensor 1 Performance - AutoCodes.com — P007B Code - Charge Air Cooler Temperature Sensor 1 Performance

What does this mean?

What are the Possible Causes of the DTC P007B?

Faulty Charge Air Cooler 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 P007B?

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 P007B 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 P007B code?

Need more information on how to fix the P007B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P007B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P007B BMW — Charge Air Cooler Temperature Sensor Circuit Range/Performance Bank 1
P007B Buick — Charge Air Cooler Temperature Sensor 1 Performance
P007B Cadillac — Charge Air Cooler Temperature Sensor 1 Performance
P007B Chevrolet — Charge Air Cooler Temperature Sensor 1 Performance
P007B Ford — Charge Air Cooler Temperature Sensor Circuit Range/Performance Bank 1
P007B GMC — Charge Air Cooler Temperature Sensor 1 Performance

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 P007B Code

1. What are the common symptoms of OBDII code P007B (Charge Air Cooler Temperature Sensor 1 Performance)?

- Common symptoms include reduced engine performance, rough idling, and possibly an illuminated check engine light.

2. What are the potential causes of OBDII code P007B?

- The code P007B can be triggered by a faulty charge air cooler temperature sensor, wiring issues, or a problem with the sensor's circuit.

3. How can I diagnose the cause of OBDII code P007B?

- Diagnosing the code typically involves checking the charge air cooler temperature sensor for proper operation, inspecting the sensor's wiring for damage, and testing the sensor's circuit for any faults.

4. Can a dirty charge air cooler impact the performance of the temperature sensor?

- Yes, a dirty or clogged charge air cooler can affect the accuracy of the temperature sensor readings, potentially leading to the P007B code being triggered.

5. What are some repair tips for resolving OBDII code P007B?

- Repair tips may include cleaning or replacing the charge air cooler temperature sensor, repairing any damaged wiring, and ensuring proper connection and functionality of the sensor.

6. Is it safe to continue driving with OBDII code P007B present?

- It is generally not recommended to continue driving with the P007B code active, as it may lead to further engine issues and decreased performance.

7. Can the charge air cooler temperature sensor be cleaned to resolve the P007B code?

- Cleaning the sensor may help in some cases, but if the sensor is faulty or damaged, it may need to be replaced to clear the P007B code.

8. How important is the charge air cooler temperature sensor for the vehicle's performance?

- The charge air cooler temperature sensor plays a crucial role in engine performance and fuel efficiency, so it is important to address any issues related to this sensor promptly.

9. Are there any potential risks of ignoring OBDII code P007B?

- Ignoring the P007B code can lead to decreased engine efficiency, potential damage to engine components, and higher fuel consumption over time.

10. Can a professional mechanic help diagnose and repair OBDII code P007B?

- Yes, a professional mechanic can perform a thorough diagnosis, repair or replace the faulty components, and clear the P007B code to restore the vehicle's performance.