P0135

System/Component
Oxygen Sensor (2) (upstream Cat.-system) cylinder 1-3

Fault Code
P0135 Heater

Fault Type
Plausibility No
Signal Yes
Minimum Threshold Yes
Maximum Threshold Yes

Monitoring Method
voltage/current range check

Signal Type
Pulsating rectangular wave on/off-cycles with constant or varying on/off times

Operating Range
0 - 5 A

Time Length and Frequency for Monitoring/Diagnosis
0.25 sec/permanent

Criteria for storing fault code
fault during 2 trips

Criteria for illuminating the MIL
fault during 2 trips and end of 2nd trip

Criteria used for determining out of range values and input component rationality check
UBATT Yes
Ground Yes
Disconnect Yes

Electronic Control Module (ECM)
U < 2.9V if output is not active
0.02A < I < 5A if output is active