AutoCodes – Hummer – C0707 Hummer

C0707 Hummer Code - Excessive Compressor Activity

Quick Answer

The air suspension module monitors the run time of the compressor. Common causes include Faulty Excessive Compressor, Excessive Compressor harness is open or shorted, Excessive Compressor 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: C0707 Hummer indicates Excessive Compressor Activity.
Common causes: Common causes include Faulty Excessive Compressor, Excessive Compressor harness is open or shorted, Excessive Compressor 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 2,162

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 Aug 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0707 Hummer Description

The air suspension module monitors the run time of the compressor. If the compressor has run for more than one hour during an ignition cycle the air suspension module switches OFF the compressor relay. The run timer counts down when the compressor is OFF with the ignition ON.

OBDII Code C0707 Hummer - Excessive Compressor Activity - AutoCodes.com — C0707 Hummer Code - Excessive Compressor Activity

What does this mean?

What are the Possible Causes of the DTC C0707 Hummer?

Faulty Excessive Compressor
Excessive Compressor harness is open or shorted
Excessive Compressor circuit poor electrical connection

How to Fix the DTC C0707 Hummer?

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 C0707 Hummer 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 C0707 Hummer Code

1. What are the common symptoms of OBDII code C0707 in a Hummer related to excessive compressor activity?

- Common symptoms include the AC system running constantly, poor fuel efficiency, and potential overheating of the compressor.

2. What are the possible causes of OBDII code C0707 in a Hummer indicating excessive compressor activity?

- The code may be triggered by a faulty AC pressure sensor, a malfunctioning AC control module, or issues with the compressor clutch.

3. How can I diagnose the root cause of OBDII code C0707 Hummer for excessive compressor activity?

- Use a diagnostic scan tool to retrieve the code, check the AC system components for any visible damage, and test the AC pressure sensor and control module for proper function.

4. Are there any DIY repair tips for addressing OBDII code C0707 in a Hummer due to excessive compressor activity?

- DIY repairs may include checking and replacing the AC pressure sensor or control module, ensuring proper refrigerant levels, and inspecting the compressor clutch for wear.

5. Can driving with OBDII code C0707 Hummer for excessive compressor activity cause further damage?

- Continuing to drive with this code may lead to increased wear on the AC components, reduced fuel efficiency, and potential damage to the compressor.

6. How much can I expect to pay for professional repairs for OBDII code C0707 in a Hummer related to excessive compressor activity?

- Repair costs can vary depending on the exact cause, but expect to pay anywhere from $200 to $600 for parts and labor.

7. Is it safe to reset the OBDII code C0707 in a Hummer indicating excessive compressor activity without fixing the underlying issue?

- While you can reset the code temporarily, it is not recommended as the underlying problem may persist and cause further damage to the AC system.

8. What steps should I take if OBDII code C0707 in a Hummer keeps coming back after repairs for excessive compressor activity?

- If the code persists, double-check the repairs made, ensure all connections are secure, and consider seeking professional help for a more in-depth diagnosis.

9. Are there any preventive measures to avoid triggering OBDII code C0707 in a Hummer due to excessive compressor activity?

- Regularly inspect and maintain the AC system, address any issues promptly, and avoid overworking the AC system to prevent triggering this code.

10. Can I continue driving my Hummer with OBDII code C0707 for excessive compressor activity if the AC system is still working?

- While the AC system may still function, it is recommended to address the underlying issue to prevent further damage and ensure optimal performance of the vehicle.