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P0155 Diagnostic Trouble Code Discussion for April 2013

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance


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Trouble Ticket Help Requests for DTC P0155
Help Request Posted
2002 GMC Sonoma SL 4.3L MIL Lamp on VIN: 1GTCT19W22
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Generally speaking a heater circuit code does not present too big a problem unless the wires are shorted or broken, but this is not the case here. All purple and purple/white wires intact and not grounding anywhere. So back to my wiring diagrams and I find the...
April 19, 2013
2002 GMC Sonoma SL 4.3L MIL Lamp on VIN: 1GTCT19W22
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Generally speaking a heater circuit code does not present too big a problem unless the wires are shorted or broken, but this is not the case here. All purple and purple/white wires intact and not grounding anywhere. So back to my wiring diagrams and I find the...
April 19, 2013