B1221 By John SmithPosted on June 14, 2023August 14, 2023 ContentsDefinition of check engine code B1221:Jaguar:Toyota:GM:Definition of check engine code B1221:Jaguar:Left seat heater output – open loadToyota:Power Window Master Switch Circuit / 21GM:Audio [-] output #20 (TBD) circuit range/performance Share this:Related posts:B0047B0006B0001
