Update - my vehicle speed sensor came in yesterday and installed it this evening. Ended up clearing the checking engine light using Torque and the fans shut off! So, I think this validates that the ECU can control the fans properly. I'm not calling this fixed quite yet, but this may in fact be related to the wheel speed sensor issue.
From the repair manual:
Quote:
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The ECM turns on or off the fan relays using signals calculated from the engine coolant temperature, air conditioning (ON/OFF), air conditioner refrigerant pressure, engine speed and vehicle speed signals.
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Of course, replacing the wheel speed sensor didn't do the trick.
However, I did notice the metal ring on the axle it reads from was slightly bent. I thought I did a reasonable job bending back into shape, but still no dice.
Anyways, I'll update the thread once I get the wheel speed sensor issue sorted.