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Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 19452
Experience:  ASE Master Certification. GM World Class Certification
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po141 code heater circuit malfunction where is it locat

Resolved Question:

po141 code heater circuit malfunction where is it located
Submitted: 5 years ago.
Category: Buick
Expert:  Dave Nova replied 5 years ago.
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The heater is built into the oxygen sensor. This allows the sensor to warm up more quickly and operate sooner. The p0141 code is for the oxygen sensor that is behind the catalytic converter. First check the OXY SEN fuse in the underhood fuse panel. If this fuse is good then replace this oxygen sensor to fix the problem.

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