Car Problem Reports

Scion tC Check Engine Light Due to Defective VVT-i Controller

Scion tC Problem
12 Reports
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Model Years Affected: 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 111,855 mi (32,000 mi - 170,000 mi)


An illuminated Check Engine Light could be caused by a defective VVT-i controller, which changes cam timing for optimal power.  Updated parts are available and the repair may be covered under the powertrain warranty.

  • Visitor, , 170,000 mi

    My car turn on the engine light when the gas cap is loose. I had to change the cap and the light turn off about 2 weeks later. Now I had the same problem... I check the gas cap again... it looks good.. but the light still on. Don't know what to do now...

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  • CWDan, , 133,567 mi

    Rough idle, high acceleration noise. Need to repair, just happened.

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  • Visitor, , 32,000 mi

    dash lights have been on for quite some time. Had a mechanic look at it and was told the camshaft gear assembly needs to be replaced at about $700.00.

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