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P0155 Diagnostic Trouble Code Discussion for February 2006

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance

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Trouble Ticket Help Requests for DTC P0155
Help Request Posted
2000 Jaguar S-Type 3.0L MIL Lamp on VIN: SAJDA01C5Y
P0155: h02s heater ckt malf. b2 upstream 2.1. vehicle runs well and mil is on. no warning messages. vehicle will consistently set trouble codes 135 and 155 after 2-3 key cycles sitting in the bay. both upstream heater circuits have battery voltage and good ground koeo. heater elements ohm good in both sen...
February 01, 2006
1996 Chevrolet K1500 5.7L MIL Lamp on VIN: 1GBEK19R3T
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. ... replaced the engine last week. I never checked codes before pulling engine but light was not on. After a day of driving customer came in and truck had P0161 only, came back a few days later so I could pinpoint problem and...
February 16, 2006