Collection: P0605 Internal Control Module Read Only Memory (ROM) Error

If your car activates a P0605 diagnostic error code, then this is a sign that there is an issue with the engine control module (ECM/ICM), in particular, its ROM or read-only memory bank. The read-only memory within a car is a non-volatile memory bank that cannot be modified after manufacture. This memory bank houses information about core vehicle functions such as ignition timing, fuel injection, electronic power steering, window operation, and even pre-set radio stations. As such, faults in the ROM bank can cause a range of issues within a vehicle, ranging from minor to major in severity.

What Are the Symptoms of a P0605 Code?

If your car has experienced errors within its non-volatile ROM bank and activated the P0605 diagnostic error code, then one of the first symptoms you are likely to notice is the illumination of the check engine light. There are other, more specific symptoms that you can be aware of, however. These include:

    Engine misfire
    Engine stalling or hesitating
    Engine failing to start
    Disruption of internal electronic components, e.g., radio, Bluetooth capabilities, dashboard display
    Ignition inconsistencies or hesitancy