Question about Cars & Trucks
Posted by Anonymous on
You may want to bring it in for diagnostics. Low transmission fluid level, restricted filter or a faulty Transmission Pressure Control Solenoid "B" could trigger the engine light. P0778 has to do with the transmission having a problem correcting or maintaining proper line pressures. C1201 has appeared due to the transmission issue. The transmission and ABS system are tide in together. The transmission problem is causing the ABS to cancel any commands that may activate the ABS system during that drive cycle. Any questions please feel free to write back.
Posted on Dec 15, 2019
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Posted on Jan 02, 2017
SOURCE: P0421 CODES AND C1201
C1201 error code means that you have some problem in engine control system.
Possible causes for P0421 error
The P0421 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting). Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem.
Posted on Apr 24, 2014
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