P0155 OBD Trouble Code

1 result found

P0155 - GM
Type Powertrain - Fuel and Air Metering - ISO/SAE Controlled
Description

HO2S Heater Circuit Conditions

Location Bank 2 Sensor 1
Cause

No CKP, ECT, EGR, EVAP, Fuel Trim, Fuel Injector, IAT, MAP, Misfire or TP sensor codes set, system voltage 8-18v, ECT and IAT inputs less than 95°F and within 11°F of each other at startup, average MAF sensor less than 20 g/sec, then the PCM detected the HO2S-21 signal remained within 150 mv of bias voltage during the test period (time varies between 42 seconds and 2 minutes)

Try also: https://www.obd-codes.com/p0155