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Old 01-28-2011, 04:48 PM   #3
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Re: 02 Axiom - CEL on all 4 o2 heating circuits

Originally Posted by danielsatur View Post
What are the odds of all four going bad?
Could it be a bad Relay switch for the H02 sensors?
Well the O2 sensors themselves tested fine... the CEL is for the sensor HEATING circuits. All four sensors were removed and separately tested and passed diagnostics.

What's the chance all four heating circuits are bad, all at the same time, but with no blown fuses in the block?

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