Code Definition

B1014 — Program ROM checksum error

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

About B1014

B1014 is a manufacturer-specific body diagnostic trouble code recorded for Holden 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.

B1014 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) continuously performs an internal checksum verification on its Program Read-Only Memory (ROM), comparing the live calculated checksum against a reference value stored during module programming. DTC B1014 is set when the BCM detects that the Program ROM checksum does not match the stored reference, indicating that the module's main program memory has been corrupted or the memory hardware is failing. Because Holden vehicles use GM architecture, the Program ROM holds the software that drives body control functions such as interior and exterior lighting, power locks, ...

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