CODE 181, from service manual: DTC -- HO2S Orientation -- Fault Definition 181 -- Right or Rear -- Rich limit reached. Possible Causes: -- Fuel pressure -- Fuel injector -- Air intake -- MAP sensor -- Fuel injector electrical circuit -- Fuel filter -- Vacuum -- Air filter CODE 186, from service manual: G6 VISUALLY INSPECT MAF SENSOR Continuous Memory DTC 184 indicates MAF value is higher than expected. Continuous Memory DTC 185 indicates MAF value is lower than expected. NOTE: If further description is required for the In-Range Test, refer to Quick Test Appendix,
You have to fix the cause of the trans codes.
These are check engine codes for a 2005 Scion XB. P0441, P0442, P0446. How do I fix these codes.
Fix the cause of the codes, and clear the codes with a scanner or by unhooking the battery.
Read the codes. Then fix the problem. Autozone will read the codes for you for free.
By paying to hooking up an OBD2 scanner. It will display the codes fix problem erase codes and if is fixed light is gone
You need to have it checked for codes. If you fix the cause of the codes the light will stay off.
Check the air filter is not clogged. Get a garage to read the fault codes and fix it.
You have the codes checked with a scan tool, and you repair the cause of the code.
Go to "Autozone" and get them to do a readout.Find you an "Honest Mechanic" and get them to fix it,ok?
If you have a check engine light on, have the codes read. It may be as simple as replacing the fuel cap.
You need to start by having it checked for codes. Then you will know what to diagnose/fix.
By fixing the problem that illuminated it. Get the codes read and fix the problem from there.