Drive with caution — fix soon.
This code means the engine speed signal reaching the transmission control module is present but out of its expected range, so it can't coordinate shift timing accurately with engine RPM. It's commonly caused by a weak or failing crankshaft position or input speed sensor, wiring problems, a worn reluctor ring, or a communication fault between modules. Repairs usually involve testing the circuit and replacing the suspect sensor, and it's often fixable without major transmission work.
$150 – $500
Varies by vehicle and root cause.
Usually yes for a while, but expect rough or delayed shifts and possible limp mode. Get it inspected soon so the issue doesn't lead to worse shifting or wear.
Repairs typically run from $150 to $500, depending on the sensor and any wiring repairs. A faulty control module can push the total higher.
It's moderately serious. Losing the engine speed signal affects shift timing and can trigger limp mode, so it should be addressed without long delays.
It means the engine speed signal is there but its value doesn't match what the transmission expects for the current conditions, usually pointing to a weak sensor, wiring issue, or worn reluctor ring.