Can drive — fix at your convenience.
This code means the computer found a fault in the control circuit for the engine hot warning lamp, which lights up when the engine runs too hot. It usually points to damaged wiring, a bad bulb, a connector issue, or an instrument cluster fault. Repairs are typically simple electrical fixes and don't involve engine internals.
$80 – $350
Varies by vehicle and root cause.
Usually yes, since the engine runs normally. The concern is that the overheat warning lamp may not alert you, so keep an eye on your temperature gauge and get the circuit repaired soon.
Simple repairs like a bulb or wiring fix often run $80 to $200. If the instrument cluster is at fault, costs can reach around $350.
It's low severity for drivability, but not something to ignore. Because it can disable an overheat warning, fixing it helps protect you from missing a real overheating problem.
Not by itself. This code is about the warning lamp circuit, not the engine temperature. Still, since it can hide an overheat warning, watch your temperature gauge until it's repaired.