OBD2 P0429

P0429

Technical Definition:

Catalyst Heater Control Circuit (Bank 1)

Trouble Code: P0429
Address: 0x0429
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:

Possible Causes:

Possible Symptoms:

Catalyst Heater Control Circuit Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Catalyst Temperature Sensor
– Catalyst Temperature Sensor harness is open or shorted
– Catalyst Temperature Sensor circuit poor electrical connection

Specific Makes: