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" Q: We own a 2005 Toyota Camry with 27,000 miles. In October 2009 the car went into the Limp Home mode (Check Engine light on) for the first time. We had it towed to the local Toyota dealer who kept it for three days and didn&amp;#039;t find any error codes related to the problem.  We brought it home and drove it for a couple of weeks without incident until it went into Limp Home with the Check Engine light on again. The dealer said it gave error messages (PO607) that the &amp;quot;air sensors&amp;quot; were bad. We had it fixed and brought it home on 10/19/09 and drove it until 11/02/09 when it went into the &amp;quot;limp home&amp;quot; mode again! This time we told them to keep the car until it was fixed. After a week, Toyota decided to replace the ECM. Since then we have not had any problems with the car. Fingers crossed. There are two Hall-effect sensors in the Toyota/CTS pedal which have to be in a close agreement on voltage or the ECM will go into the &amp;quot;limp home&amp;quot; mode. Can you tell me how replacing the ECM corrected the voltage in the two sensors? It seems to me that the voltage is going to the ECM and not the other way around. How did the sensors get out of whack causing the ECM to shut the car down? I believe the problem Toyota is having is electrical not mechanical and will keep close eye on our car. A: Many, many things can make the ECM go into Limp Home, not just the pedal sensors. Obviously, the pedal sensors weren&amp;#039;t the problem in your case. I do find it difficult to swallow that the dealer could find no codes set if the Check Engine light was on. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/how-to/a2929/toyota-camry-limp-mode/>