P0429 – Catalytic converter heater, bank 1 -control circuit malfunction

By BAT Team (Contact Me)
Last Updated 2015-11-18
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Trouble Code	Fault Location	Probable Cause
P0429	Catalytic converter heater, bank 1 -control circuit malfunction	Wiring, relay, ECM

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BAT Team Discussions for P0429

Cat cleaner for P0420 code
Been doing a little research on the P0429 code on my 2000 Montana. Now I do know that it's burning some coolant, has the typical gasket leak, and also am thinking that burning coolant cannot be good for the cat. My question is, do any of these add-to-the-gas-tank cat cleaners work? I'm not partic...