The P0439 diagnostic trouble code means the engine control module (ECM/PCM) has detected a problem with the catalyst heater control circuit for Bank 2....
P0438 means the engine control module (ECM/PCM) has detected an abnormally high electrical signal from the catalyst temperature sensor circuit on Bank 2, Sensor...
The P0437 diagnostic trouble code means the engine control module (ECM/PCM) has detected a lower-than-expected electrical signal from the catalyst temperature s...
P0436 means the engine control module (ECM/PCM) has detected that the catalyst temperature sensor signal on Bank 2, Sensor 1 is outside the expected range or is...
The P0435 diagnostic trouble code means the engine control module (ECM/PCM) has detected a malfunction in the catalyst temperature sensor circuit for Bank 2, Se...
P0434 means the engine control module (ECM/PCM) has determined that the heated catalytic converter on Bank 2 is not reaching the expected temperature within the...
The P0433 diagnostic trouble code means the engine control module (ECM/PCM) has determined that the heated catalytic converter on Bank 2 is not performing as ef...
P0432 means the engine control module (ECM/PCM) has determined that the main catalytic converter on Bank 2 is not reducing exhaust pollutants as effectively as ...
P0428 means the engine control module (ECM/PCM) has detected an abnormally high electrical signal in the catalyst temperature sensor circuit for Bank 1, Sensor ...
The P0427 trouble code means the engine control module (ECM/PCM) has detected a low electrical signal from the catalyst temperature sensor circuit for Bank 1 Se...
P0426 means the engine control module (ECM/PCM) has detected that the catalyst temperature sensor signal for Bank 1, Sensor 1 is outside the expected range or i...
P0424 means the engine control module (ECM/PCM) has determined that the heated catalytic converter on Bank 1 is not reaching the expected temperature threshold ...
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