This code indicates the Powertrain Control Module has detected that the Fuel Pump Control Module is running software that is incompatible with the PCM's expected calibration. The modules cannot communicate properly to control fuel pump operation, which may prevent the engine from starting or running.
The module was replaced with a unit containing software for a different vehicle model year or configuration, or a new module was not programmed before installation. This is the most common cause.
The existing module has corrupted or outdated software that no longer matches the PCM calibration, requiring reflashing to the correct version.
If the PCM was recently replaced, it may contain software that expects a different Fuel Pump Control Module version than what is installed.
Weak battery voltage during programming, poor ground connections, or voltage drops can prevent proper software handshake between modules.
Rare hardware failure within the control module prevents it from responding with correct software version information.
Extremely rare; the PCM may incorrectly detect incompatibility due to internal hardware faults.
Almost never. This code indicates the Fuel Pump Control Module has the wrong software, not the PCM. Replacing the PCM is extremely unlikely to fix this issue and is only considered after confirming the Fuel Pump Control Module and all wiring are correct.
No. This incompatibility typically prevents the fuel pump from operating, which will cause the engine to stall or fail to start. Driving is not recommended.
Many modern fuel pump assemblies include an integrated control module. If the replacement unit came from a different vehicle or was not programmed to your specific vehicle, it will trigger this software incompatibility code.
Disconnecting the battery may temporarily clear the code, but the software mismatch is permanent. The code will return immediately because the modules cannot establish compatible communication.