Code Definition

B1007 — Eeprom write error

System: Body  |  Type: Manufacturer-Specific  |  Make: GM

About B1007

B1007 is a manufacturer-specific body diagnostic trouble code recorded for GM vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1007 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Body Control Module (BCM) in GM vehicles uses Electrically Erasable Programmable Read-Only Memory (EEPROM) to store non-volatile data including vehicle configuration parameters, learned adaptive values, VIN data, security credentials, and option content codes. DTC B1007 is set when the BCM's internal microprocessor detects a data mismatch after three consecutive attempts to write information to the EEPROM — at that point the processor flags the fault and redirects future writes to an alternative memory area. This failure is most commonly triggered by unstable supply voltage during write ...

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