223B Trouble code
I have a 2008 C30 T5 and just got this code. Car runs good otherwise. My Autel scanner says code 223B??? Not familiar with this type of code but the description says Rear heated oxygen sensor (H02S) Bank 1 signal missing. Sounds like a circuit code but I can't find any reference to it on line. I'm thinking a wire is damaged or maybe a broken wire or maybe the sensor went bad. I haven't had a chance to get it on a lift to check it out so I thought someone might have some experience with this.
Thanks Jim |
yep sounds like the sensor is an open circuit. There are four wires - two are for the heater element and two are for the sensor and it sounds like the sensor is reading open. The rear o2 sensor is used to measure cat efficiency so it shouldn't impact day to day driving. not sure where the connectors for the O2 sensors are for your model - possibly up by the firewall...
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MT thanks for the reply. I'm hoping it's an easy fix.
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Originally Posted by GMJim
(Post 454700)
MT thanks for the reply. I'm hoping it's an easy fix.
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thanks for the update.
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