Hi - New to the forum.
I have a supercharged 96 Bonnie with 136k and recently noticed I'm starting to overheat slightly in traffic; 220F by the dash gage with the A/C off and only 65-70 outside, so I figure something is amiss. With the engine this hot I figure the fans should be on, right? but no they're not. Being an engineer and loving a good problem I did the following:
1) I put 12V across the motor and it worked.
2) I jumped the hi and low speed relays with a wire and the fans went to low/hi speed as I would expect.
3) I swapped the relays with the horn relay and tested the horn successfully, so the relays are fine.
4) I checked the hot side of the solenoid and that'* at +12 as expected.
5) all fuses are OK.
That leaves the PCM not grounding the relay solenoid.
is this possible?
What PCM pins go to the cooling fan relays?
what else should I check?

Any help would be appreciated, as it'* only going to get hotter within the next few weeks.

thanks

Welcome! I belive there is a relay.That operates the fans.Others may know more.Also check temp switch near t-stat housing.

Low speed fans come on at 216F and high speed come on at 228F. Higher than most of us are happy about. If you have a method of scanning, I'd use that to monitor the temps and watch the fans. More than likely they are working properly, but the programming temps are less than desireable.

OK thanks for the info Bill