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P0155 Diagnostic Trouble Code Discussion for April 2011

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance

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Trouble Ticket Help Requests for DTC P0155
Help Request Posted
2001 Chevrolet Tracker LT 2.5L MIL Lamp on VIN: 2CNBJ73491
P0155: o2 heater. Hello thanks for taking the time to help. I may need factory wiring diagram and fuse details. I have all data here and what I have looked at is the o2 heater relay. I have no power on pin 1 the blu/wht wire. I have power on pin 3 blk/wht wire. I have wiring di...
April 16, 2011