AutoCodes – GMC – B1007 GMC

B1007 GMC Code - EEPROM Write Error

Quick Answer

EEPROM write error detection is internal. Common causes include Faulty Control Module, Control Module harness is open or shorted, Control Module 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: B1007 GMC indicates EEPROM Write Error.
Common causes: Common causes include Faulty Control Module, Control Module harness is open or shorted, Control Module 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 1,261

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 Nov 18, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1007 GMC Description

EEPROM write error detection is internal. No external circuits are involved. For Diagnostic Trouble Code (DTC) to set, the microprocessor must run the program to detect a write error whenever it writes to EEPROM. The program runs even if the voltage is out of the valid operating range.
The microprocessor first writes information to a cell or address in EEPROM. The microprocessor then reads information and compares to what was sent to the address. If they do not match after three consecutive attempts, the microprocessor will set DTC B1007. When DTC is set, the microprocessor finds another area to write information to. This new area becomes a permanent area for the storage of this information. DTC will clear when the microprocessor makes a successful write to EEPROM.

OBDII Code B1007 GMC - EEPROM Write Error - AutoCodes.com — B1007 GMC Code - EEPROM Write Error

What does this mean?

What are the Possible Causes of the DTC B1007 GMC?

Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1007 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 does this mean?

Code Tech Notes

If DTC B1007 is retrieved as either current or history, replace the module that set the Diagnostic Trouble Code (DTC).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1007 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.

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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 B1007 GMC Code

1. What does OBDII code B1007 GMC (EEPROM Write Error) mean?

- This code indicates that there has been an error in writing to the EEPROM (Electrically Erasable Programmable Read-Only Memory) in the vehicle's control module.

2. What are the common symptoms of OBDII code B1007 GMC?

- Common symptoms include issues with starting the vehicle, rough idling, poor engine performance, and potential stalling.

3. What are the possible causes of an EEPROM Write Error (B1007) in a GMC vehicle?

- The causes can include a faulty control module, electrical issues, software glitches, or a damaged EEPROM.

4. How can I diagnose OBDII code B1007 GMC?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific error code, checking for other related codes, and inspecting the control module and wiring for any visible issues.

5. Can I drive my GMC with the B1007 code?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair an EEPROM Write Error (B1007) in my GMC vehicle?

- Repair options may include reprogramming the control module, replacing the EEPROM, checking and repairing any faulty wiring, or seeking assistance from a professional mechanic.

7. Is it possible to reset the B1007 code without fixing the underlying issue?

- While clearing the code may temporarily remove the warning light, the underlying issue causing the EEPROM Write Error will still persist and may lead to further problems if left unresolved.

8. Can a DIY enthusiast fix the B1007 code in a GMC vehicle?

- Depending on the skill level and access to tools and resources, some DIY enthusiasts may be able to address the EEPROM Write Error themselves. However, complex repairs may require professional assistance.

9. How much does it typically cost to repair OBDII code B1007 GMC?

- The cost of repair can vary depending on the specific issue causing the EEPROM Write Error, the extent of the damage, and whether parts need to be replaced. It is advisable to obtain a quote from a trusted mechanic.

10. Are there any preventive measures to avoid OBDII code B1007 in the future?

- Regular vehicle maintenance, timely software updates, and addressing any electrical issues promptly can help prevent the occurrence of an EEPROM Write Error and other related codes.