P0136 OBD Trouble Code

1 result found

P0136 - GM
Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description

HO2S Heater Circuit Conditions

Location Bank 1 Sensor 2
Cause

Engine speed over 1500 rpm in closed loop, IAT input 14-158°F, ECT input over 176°F, BARO input over 75 kPa, fuel level over 25%, VSS input 20-50 mph, then the PCM detected that the HO2S-12 maximum voltage was less than 600 mv for 8 minutes, or that the HO2S-12 minimum voltage was more than or equal to 300 mv after a maximum voltage check in Fuel Shutoff mode.

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