B1007 GMC - EEPROM Write Error

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

B1007 GMC Possible Causes

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

How do I fix code B1007 GMC?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Tech Notes

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

Cost of diagnosing the B1007 GMC code

Labor: 1.0

The cost of diagnosing the B1007 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

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

More Information

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