Failed o2 oxygen sensor on Chevy Equinox SUV? Before replacing the o2 sensors make sure to check the upstream and downstream oxygen o2 sensor fuse. ( 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | LS | LT | LTZ ).
Chevy Equinox 2.4L has two oxygen sensors. Each will have its own fuse (post catalytic converter o2 sensor and pre catalytic converter o2 sensor). So one oxygen sensor will be located on the exhaust manifold and one on the exhaust pipe after the catalytic converter.
o2 Sensors fuses are located in the main fuse box under the front hood:
FUSE #41 Post catalytic converter o2 sensor (15A)
FUSE #43 Pre catalytic converter o2 sensor (15A)
If both of the fuses are good then you should connect higher end obd2 scanner to your vehicle and perform live data diagnostics. This should give you all the answers on which oxygen sensor failed.
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