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2005 Toyota Tundra OBD Codes P1442 and P1445: Causes, Repair Costs, and DIY Tips

Model: Toyota Tundra Fault Code: P1442 Posted: 2011-10-21 10:35

The check engine light turned on on October 20, 2011, on my 2005 Toyota Tundra. An OBD scan revealed two fault codes: P1442 and P1445. After visiting the Toyota dealership, I was informed that the secondary air injection pump and both bank 1 and bank 2 switching valves need replacement. The air pump costs $1,250.17, and each switching valve is priced at $250.00 — totaling $1,750.00 for parts, excluding labor. The check engine light has since turned off, though I believe the dealership may have cleared it manually. It's likely to reappear if the underlying issue isn't addressed. As a fellow 2005 Toyota Tundra owner, I'm seeking advice: is there a more cost-effective solution than paying thousands at a dealer? Can these codes be resolved with an independent repair or cheaper parts? Any insights would be greatly appreciated.

Related fault codes
P1442P1445
Comments (3)
Anonymous 2011-10-23 09:52

I double-checked the code definitions and found: P1442 = EVAP System Leak Detected P1445 = Purge Flow Sensor Circuit High Input It's possible the technician cleared the codes, turning off the check engine light. I recommend waiting for the light to return and then re-scanning to confirm if the codes persist or have changed.

Anonymous 2014-07-15 10:51

I own a 2005 Toyota Sequoia and recently noticed the VSC OFF light came on. My dealer estimated a repair cost of around $2,200. I took it to Advance Auto Parts, where they scanned it using an OBD reader and found the same codes: P1442 and P1445. The diagnosis was secondary air injection system failure with switching valve stuck closed in bank 1. I'm now wondering if there's a more affordable fix than paying $2,200 at a dealership — any suggestions or alternatives?

Anonymous 2014-07-15 11:22

You should have the vehicle scanned for VSC-related codes, as these are often stored in the ABS or VSC module. Standard free OBD scanners typically don’t read all modules, including VSC, SRS, and ABS. A professional diagnostic tool is required to access these systems. Also, consider starting a new topic when discussing this issue to keep discussions focused and searchable.