P0439 – Catalytic converter heater, bank 2 -control circuit malfunction
By (Contact Me)
Last Updated 2015-11-18
A site with free advice from mechanics.
| Trouble Code | Fault Location | Probable Cause |
|---|---|---|
| P0439 | Catalytic converter heater, bank 2 -control circuit malfunction | Wiring, relay, ECM |
We recommend Torque Pro