Wiring Diagram for O2 sensor

I need a wiring diagram for my xl7. The check engine light came on after a garage worked on the air conditioning. he error code is the O2 heaters in both sensors 31,37,51 and 57 I think is what the codes were

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@paradisejax you would definitely narrow it down if you could tell us what codes were shown. In the meantime this Suzuki wiring should get you in the right direction. It is extensive, so it will not be as easy as it would be if you had a specific code.

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I will get it checked again to get the actual code, but it was for the heaters on the o2 sensors. Also, the check engine light came on after the air conditioner was worked on. The mechanic said it was a bad wire at the fuses under the hood


Thank you so much for the wiring diagram! I found the problem and no more check engine light! Thank you so much


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David Creveling will be eternally grateful.
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