Question about 2005 Toyota Corolla
What it means is that the ECM cannot detect a return current from the TCC solenoid. If that's the case the TCC may not be engaging when it should. You probably won't notice the problem other than worse gas mileage.
It may be simply that the connector has come loose - check the wiring to the transmission. Worst case the TCC solenoid has become faulty - it should be a straightforward repair (altough I think on the A246E you have to drop the valve body to access the solenoids - that may make it more expensive). Do the simple things first like cleaning out the connector contacts etc.
Posted on Nov 11, 2010
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Posted on Jan 02, 2017
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