TYPICAL ENABLING CONDITIONS
Heated Oxygen Sensor Output Voltage (Abnormal Voltage Output, High Voltage and Low Voltage)
TYPICAL ENABLING CONDITIONS - HEATED OXYGEN SENSOR OUTPUT VOLTAGE
Related DTCs
voltage)
P0138: Heated oxygen sensor (for Bank 1) output voltage (Extremely
high)
P0139: Heated oxygen sensor (for Bank 1) output voltage during fuel
cut
P0156: Heated oxygen sensor (for Bank 2) output voltage (Abnormal
voltage output)
P0156: Heated oxygen sensor (for Bank 2) impedance (Low)
P0157: Heated oxygen sensor (for Bank 2) output voltage (Low
voltage)
P0157: Heated oxygen sensor (for Bank 2) impedance (High)
P0158: Heated oxygen sensor (for Bank 2) output voltage (High
voltage)
P0158: Heated oxygen sensor (for Bank 2) output voltage (Extremely
high)
P0159: Heated oxygen sensor (for Bank 2) output voltage during fuel
cut
Required Sensors/Components
(Main)
Heated oxygen sensor
Required Sensors/Components
(Related)
Crankshaft position sensor, engine coolant temperature sensor, mass air
flow meter and throttle position sensor
Frequency of Operation
Once per driving cycle: Active air-fuel ratio control detection, Heated
oxygen sensor voltage (During fuel cut)
Continuous: Other
Duration
20 seconds: Active air-fuel ratio control detection
90 seconds: Heated oxygen sensor impedance (High)
30 seconds: Heated oxygen sensor impedance (Low)
10 seconds: Output voltage (Stuck high)
9 seconds: Heated oxygen sensor voltage (During fuel cut)
MIL Operation
2 driving cycles
Sequence of Operation
None
P0016, P0018 (VVT System - Misalignment)
P0017, P0019 (Exhaust VVT System - Misalignment)
P0031, P0032, P0051, P0052 (Air Fuel Ratio Sensor Heater)
P0037, P0038, P0057, P0058 (Rear Oxygen Sensor Heater)
P2195, P2196, P2197, P2198, P2237, P2238, P2239, P2240,
P2241, P2242, P2252, P2253, P2255, P2256, P2A00, P2A03 (Air
Fuel Ratio Sensor)
P0102, P0103 (Mass Air Flow Sensor)
P0112, P0113 (Intake Air Temperature Sensor)
P0115, P0117, P0118 (Engine Coolant Temperature Sensor)
2009 Toyota Tundra
2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra