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Category: Car
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Experience:  Manager/co-owner at Autotronic
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suzuki verona: 04 suzuki verona code 133 and 153 . already

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04 suzuki verona code 133 and 153 . already changed both #1 sensors. codes keep returing.

Billy :

Hello and Welcome! I'm Billy and i will assist you with your inquiry. Fee

l free to ask if any further info is needed.

Billy :

Have you checked the wiring on these O2 sensors, and the wirings on the engine control module?


Billy :

have you checked the signals getting from these sensors (should cycle between 0.2 and 0.8 volts)?



the codes keep refering to heater problems . could this be caused by not using suzuki manufactured parts

Billy :

This could be caused by non OEM parts, however, first i would check the wiring....for that i will include the diagram and the checking details:


nabilc and 9 other Car Specialists are ready to help you
Hello Sam!

Hope all is well...

Just checking if your O2 sensor issue was sorted. Get back to me whenever you need additional assistance or technical details.