Drivable short-term, but fix now to avoid damage.
This code means the engine computer found a fault in its internal Random Access Memory (RAM), the working memory it uses to run calculations while the engine is on. This is usually an internal hardware problem within the PCM itself, though poor power or ground connections can also trigger it. Repairs often involve reprogramming the module and, if that fails, replacing the computer.
$150 – $1200
Varies by vehicle and root cause.
It's risky. Because the computer's working memory is failing, the engine could stall or refuse to start without warning. Drive only the short distance needed to get it diagnosed, and avoid long trips.
If reprogramming and wiring repairs solve it, you might spend $150 to $350. If the computer must be replaced and programmed, expect roughly $800 to $1,200 or more depending on the vehicle.
Yes. A RAM fault points to the heart of the engine's computer, and it can cause stalling, no-starts, or unpredictable behavior. It should be diagnosed and repaired promptly.
Not always. Sometimes it's caused by bad grounds, low voltage, or a glitch that clears after reprogramming. But if the fault is truly inside the chip, the PCM usually needs to be replaced.