Technical Definition:
Catalyst Temperature Sensor Circuit High (Bank 1 – Sensor 1)
Trouble Code: P0428
Address: 0x0428
System: Powertrain
Subsystem: Auxiliary Emission Controls
Address: 0x0428
System: Powertrain
Subsystem: Auxiliary Emission Controls
Technical Description:
Possible Causes:
Possible Symptoms:
Catalyst Temperature Sensor High Input Bank 1 Sensor 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