P0135 - O2 Sensor Heater Circuit (Bank 1 Sensor 1)

P0135 - O2 SENSOR HEATER CIRCUIT (BANK 1 SENSOR 1)

Description:	This DTC sets when an open or short is detected or the universal heated oxygen sensor (HO2S) current draw exceeds a calibrated limit.
Possible Causes:	UO2SHTR circuit open UO2SHTR circuit short to voltage VPWR circuit open GND circuit open Low battery voltage Water in the harness connector Corrosion Incorrect connections Damaged universal HO2S
Diagnostic Aids:	Inspect the connectors for signs of damage, water ingress, or corrosion.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test DZ .