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Diagnostic Procedures

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: DTC P0141: HO2S Bank 1 Sensor 2 - Heater Performance (Steps 1-6)
G00248469Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0141: HO2S Bank 1 Sensor 2 - Heater Performance (Steps 7-15)
G00248470Courtesy of GENERAL MOTORS CORP.