U0458 indicates that the Powertrain Control Module (PCM) has received invalid or corrupted data from the Information Center B network node. This is a communication fault on the vehicle’s high‑speed CAN bus.
Broken, frayed, or oxidized wires and poor connector contacts can cause signal distortion that the PCM interprets as invalid data.
A malfunctioning module may transmit out‑of‑range or corrupted messages onto the CAN bus.
Insufficient voltage or intermittent grounding can corrupt all bus traffic, leading to invalid data errors.
Nearby high‑current components or damaged shielding can introduce noise onto the CAN lines.
A failing PCM CAN transceiver can misinterpret valid messages as invalid, but this is far less common than wiring or module issues.
Clearing the code may temporarily erase the warning, but the underlying communication fault will likely return and trigger the code again.
No. In real‑world experience, wiring, connectors, or the Information Center B module itself are far more common causes. Replacing the PCM is rarely necessary.
A severely low or unstable voltage supply can affect CAN bus signals, but a healthy charging system is usually not the direct cause of U0458.
A scan tool capable of displaying live CAN data and a multimeter for voltage/continuity checks are sufficient for most diagnostics.