Lexus
Secondary air injection pump stuck off, bank 1 on Lexus V8s with secondary air (1UR). Often a water-damaged or seized air pump.
P2445 fault code: what it means
P2445: Secondary air injection pump stuck off, bank 1 on Lexus V8s with secondary air (1UR). Often a water-damaged or seized air pump.
Usual causes, most likely first
- seized or water-damaged secondary air pump
- pump relay or fuse fault
- blocked air hose
P2445 by make
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Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.