O2 sensor
Trouble code P2238 means: O2 sensor positive current control circuit low bank 1 sensor 1
how to diagnostic this code
Trouble code P0420 means:Catalyst system efficiency below threshold
tric off
P0120 code is for the TPS/Throttle pedal position sensor .
Trouble code P0302 means:Cylinder 2 misfire detected
Trouble code P0441 means: Evaporative Emission System Incorrect Purge Flow
Trouble code P0121 means:Throttle/pedal position sensor/switch A circuit range/performance problem
C1336 means "zero point calibration of yaw rate sensor undone."
It's a box under your hood labeled diagnostic.
A tip. When asking questions about the Solara it's best to mention the year and sometimes the model. There are huge differences between the generation I and generation II models. To try and answer your question, there is no err1 code (unless the code reader you're using drops the zeros.) The closest is code P0100 which indicates a Mass or Volume Air Flow Circuit Malfunction. Cheers
its next to the battery on the side of the fuse box.. should be a little box that says diagnostic.