08-29-2009, 02:26 AM
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#2 (permalink)
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Christ -
Try these ...
Radiator cooling fans run continuously
Radiator cooling fans run continuously - SaturnFans Forums
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Yes tried unhooking the negative to the battery only to clear the codes (sometimes this works) have two codes P0481 (fan 2 control circuit) and P1640 (Driver 1 input voltage high). Unhooking the battery cleared the codes and the fan seemed to run longer and more often but after awhile both code lights (Service engine & Service enging soon) came on. If it is in the ECM can it be reprogrammed or repair? I hope it dont have to be replaced everything else runs GREAT.
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2001 Saturn L-200 2.2 code P1640, P0481
2001 Saturn L-200 2.2 code P1640, P0481 - SaturnFans Forums
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The code reader says P1640 "Driver 1 input voltage high & P0481 Fan 2 control circuit. I have checked and replaced (not blown) 10 amp ingition 3 fuse, replaced Air conditioning relay with new.
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CarloSW2 |
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