P0422 – Main Catalyst Efficiency Below Threshold Bank 1   P0422: DIY Repairing Video Tutorial https://youtu.be/83GLIoKEpb0 Check out nonda Auto DIY Center for more engine error code repairing videos.https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97  …

P0431 – Warm Up Catalyst Efficiency Below Threshold Bank 2   P0431 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0431 Possible Causes   Warm…

P0432 – Main Catalyst Efficiency Below Threshold Bank 2   P0432 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0432 Possible Causes   Warm Up…

P1F3C – Voltage Control Unit Overheating   P1F3C Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P1F3C Possible Causes   Water pipe leak,Radiator fan,Faulty Voltage…

P1605 – Automatic Transmission Communication   P1605 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P1605 Possible Causes   Weak battery,Faulty Transmission Control Module (TCM),Harness…

P0685 – Engine Control Module Power Relay Control Circuit Open   P0685 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0685 Possible Causes   Weak…

P0686 – Engine Control Module Power Relay Control Circuit Low   P0686 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0686 Possible Causes   Weak…

P0687 – Engine Control Module Power Relay Control Circuit High   P0687 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0687 Possible Causes   Weak…

P0688 – Electronic Control Module Power Relay Sense Circuit/Open   P0688 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light)   P0688 Possible Causes   Weak battery,Low…

P0631 – VIN Not Programmed or Incompatible – TCM   P0631 Possible Symptoms   Engine Light ON (or Service Engine Soon Warning Light),Cruise control system inoperative   P0631 Possible Causes…