P2445 Possible Causes
- Air pump fuse
- Suction hose
- Air pump assembly
- Faulty pressure sensor
- Air pump wiring harness is open or short-circuited
- Poor electrical connection in the air pump circuit
- Pressure sensor wiring harness is open or short-circuited
- Poor electrical connection in the pressure sensor circuit
How to Fix Code P2445
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is Code P2445 Detected?
If the pressure sensor level has not reached a certain level despite the ECM turning on the air pump, or if the pressure level exceeds the threshold despite the ECM stopping the air pump, the ECM interprets this as a fault in the secondary air injection system and the code is set.
P2445
Possible Symptoms
Check engine light on (or service engine soon warning light)
P2445 Meaning
To accelerate catalyst activation during engine warm-up, the air injection system pumps secondary air into the exhaust manifold under pressure. The secondary air is supplied by the air pump and is pumped to the exhaust manifold via the air switching valve. The opening and closing movement of the air switching valve is regulated by the vacuum switching valve (VSV). The air pump and air switching valve are monitored by the engine control module (ECM) and are used to detect malfunctions in this system. The ECM monitors the secondary air injection system and detects malfunctions using a pressure sensor located on the air switching valve.
The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects exhaust pressure in the secondary air passage.