A truck's temperature rose at idle while its radiator fans remained still. The owner found the fan circuit could be made to run during relay testing.
What the report actually shows
Working fan motors under one test narrow the problem but do not establish whether a switch, control input, connector or another part fails during normal operation.
Reported outcome
The source does not include a verified final fix.
What to take from this case
Compare commanded fan operation with actual temperature and electrical state. A professional can test the control side without treating a relay bypass as a repair.
This is a reported experience and an educational reading of its evidence, not a diagnosis for another vehicle. The original discussion is linked below; AI4Car has not independently inspected the vehicle.
Sources and further reading
Community discussion · outcome not verified
For information, not a diagnosis or repair instruction. A reported result may not apply to your car. Consult the manufacturer's guidance and a qualified technician.
How to use this information
This is an editorial interpretation of a public discussion. Replies, votes and an accepted answer do not prove a diagnosis. An author-reported finding or repair has not been independently verified by AI4Car. Illustrations are conceptual. Read the content limitations.
Content and reuse
An AI-assisted educational explanation prepared for AI4Car. References provide factual context; linking to a publication does not grant a license to its text or images or imply its author’s endorsement. No Creative Commons license is asserted for those third-party materials.
Illustration: AI-generated for AI4Car; a generic conceptual view, not a photograph of the reported vehicle or a manufacturer’s diagram. Content and licensing policy.
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