Acura Fault Codes

Acura was established in 1986 as the luxury wing of Japanese automaker Honda, primarily for the North American market. You can find the most common fault codes that appear in Acura models on this page.

Some of the most common Acura fault codes that you may experience include the B1236 which signals thate there is an issue in the air-conditioning unit. The B1236 fault code varies across different manufacturers but for Acura, it represents that the air mixer system in the AC on the passenger side is stuck open.

Another common Acura fault code that you may experience is P0420 and this appears when the oxygen sensor after the engine but before the exhaust is experiencing low O2 levels. This could be caused by a faulty sensor or signify that the engine isn’t burning fuel correctly.

If you own an Acura with variable valve timing technology (commonly known as VTEC in the Honda community) then you may have seen the P0339 error pop up. It signals that the engine has detected unusual behaviour coming from the crankshaft or the sensor that monitors it. usually alongside this error you may find the car is running rough (misfiring etc.) and has a loss of power.