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2006 Chevy HHR Radiator fan

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Old 12-10-2018, 02:23 PM
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Ric
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2006 Chevy HHR Radiator fan
Relay 50 turns on radiator fan when forced
where does that input come from?
temperature sensor or ECM
temperature GUAGE WORKS FINE?
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Old 12-10-2018, 03:00 PM
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The ECM.
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Old 12-10-2018, 08:20 PM
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Hi Ric, to the forums!!

What issues are you facing with your HHR?
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Old 12-10-2018, 10:52 PM
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Ric
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Chevy hhr radiator fan
Originally Posted by RJ_RS_SS_350
Hi Ric, to the forums!!

What issues are you facing with your HHR?
not coming on
relay energize s fan. Input to relay doesn’t come on
where does it come from
temperature sensor or ECM
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Old 12-11-2018, 04:18 AM
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Look at post #2 Fan command comes from ECM. ECM looks at signal from temperature sender/switch to tell fan to come on.
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Old 12-11-2018, 09:16 AM
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My mistake! Here is the diagram for 2006, SOME have a diode near the fan in the harness.

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Old 12-12-2018, 07:55 PM
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Originally Posted by Ric

not coming on
relay energize s fan. Input to relay doesn’t come on
where does it come from
temperature sensor or ECM
Hmmm.... still not making sense. Try using more words, we don't charge per word.

You say the relay is energizing the fan, so that means the fan is working. What is the issue? Is the engine overheating?
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Old 12-12-2018, 10:18 PM
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Fan doesn't normally come on unless I turn on the A/C. OR, engine temp hits 217* F, I do believe.
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