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I am getting a code P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) on my 2001 Toyota Highlander V6. How much can I expect to pay for this repair? Thanks!!

Answers from the Automotive Experts

Amanda J. Pierce, MBA Jessica, I would suggest price comparison shop, you call start with your local dealer who may be on the high side and call reputable mechanics in your area. You may be able to purchase the component cheaper yourself, and pay for only labor.

Audra Fordin, Owner at Great Bear Auto Shop Hi Jessica, Happy New Year!! There is a great website I send my clients to, when looking for second opinion pricing. Important to remember, It is not always 100% BUT, it is usually in the ballpark. Write it down, and keep it as a resource you can refer to anytime you have pricing questions. Mechanically yours, Audra

Judy Curry, Co-Founder and Vice President of Marketing at Currys Auto Service Hello Jessica, The first step would be to diagnose the fault. The heater circuit in this sensor does fail quite often but steps would need to be taken to make sure there is not another issue causing this fault to be set. The sensor is in the $215 dollar range and you need to include labor to test and replace it which will depend on the labor rates in your area. Good luck! the Curry's Auto Service team

Kerri Papajohn, Marketing Director at USA Sealants, Inc. Most likely heater part of the Air/fuel ratio sensor has burned out and the sensor will need to be replaced. You can buy a Denso OE Style sensor (Part # 2349009) for about $100. Figure 1/2 hour labor to install it.

Kristin Brocoff, Director of Corporate Communications at Jessica, I just recently saw this question you posted. My apologies for the tardy response. I researched the CarMD database and found that the code and fix you mention is actually the most common type of problem/fix for your specific vehicle, accounting for about one-third of fixes. You would be looking at about $100 for labor and about $220 for parts. However, it's always best to have an automotive service excellence (ASE) certified mechanic look at your specific vehicle so you don't guess on the right repair. I'd love to hear back on what fixed/fixes your Highlander's issue and how much it actually cost. Safe driving! Kristin Brocoff Corp.

Lori Johnson, Owner and Instructor at Ladies Start Your Engines Dear Jessica, This sounds like it is indicating a problem with a heated Oxygen sensor. It's best to get a technician to diagnose it. Sometimes there is another problem that is causing the O2 sensor to go bad. Make sure before you spend the money to replace it. Take a look at this site to get a description of your problem. You can check here for prices in your area. Look under exhaust and emissions and select oxygen sensor. This will help give you an idea of the cost. Lori Johnson

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