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Old 11-27-2006, 10:38 AM   #11
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Quote:
Originally Posted by BillBoost37
He has a scanner and should be able to see all the parameters.
Not all of them...I don't think it scans ABS/TCS codes. I'll have to ask Don after he recovers from the holidays
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Old 11-28-2006, 02:32 PM   #12
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Quote:
Originally Posted by sandrock
Quote:
Originally Posted by BillBoost37
He has a scanner and should be able to see all the parameters.
Not all of them...I don't think it scans ABS/TCS codes. I'll have to ask Don after he recovers from the holidays
Nope it won't do the ABS/TCS... But it should show you the Fan relay 1-2 request on or off, Engine operating temps... If the PCM requests the Fans on, the PCM should flip the Low or High speed relay depending on the Operating temps at the given time... I think the low spped comes on around 210F and High at 220-227F..

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Old 11-28-2006, 03:32 PM   #13
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Quote:
Originally Posted by jr's3800
Nope it won't do the ABS/TCS... But it should show you the Fan relay 1-2 request on or off, Engine operating temps... If the PCM requests the Fans on, the PCM should flip the Low or High speed relay depending on the Operating temps at the given time... I think the low spped comes on around 210F and High at 220-227F..
That'* a bit too high for me...so, I will be installing a self-made fan bypass circuit

Update on Traction Control issue...yesterday I let the car idle in gear for about 20 mins, no movement at all...and no traction off light So it looks like it very well might be wheel speed sensor related. I now need to find out if the WSS'* are directly or indirectly tied into the TC circuit (i.e. "WSS-ABS Computer-TC computer" signal flow).

I'm solving miles of problems inches at a time
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Old 11-28-2006, 04:28 PM   #14
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Quote:
Originally Posted by sandrock
Quote:
Originally Posted by jr's3800
Nope it won't do the ABS/TCS... But it should show you the Fan relay 1-2 request on or off, Engine operating temps... If the PCM requests the Fans on, the PCM should flip the Low or High speed relay depending on the Operating temps at the given time... I think the low spped comes on around 210F and High at 220-227F..
That'* a bit too high for me...so, I will be installing a self-made fan bypass circuit

Update on Traction Control issue...yesterday I let the car idle in gear for about 20 mins, no movement at all...and no traction off light So it looks like it very well might be wheel speed sensor related. I now need to find out if the WSS'* are directly or indirectly tied into the TC circuit (i.e. "WSS-ABS Computer-TC computer" signal flow).

I'm solving miles of problems inches at a time
Let us know how it all goes... And isn't that how it usually is... Solving 100 issues, But one issue per day..

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Old 11-28-2006, 06:53 PM   #15
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Brad..on that fan override, there'* a bunch of good info and wire colors in a post by WillWren about a year back

http://www.bonnevilleclub.com/forum/...ght=fan+switch
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Old 11-28-2006, 06:55 PM   #16
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yup i installed my own Fan overide a few weeks back....its easy, takes less than 30 min, and is a 1 beer job
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Old 11-28-2006, 09:00 PM   #17
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Thanks for the link Boosty! Now then, after looking at the above diagrams, and looking through the FSMs I have (particularly 6e3-a-9 in the 93 FSM book 2), could I *trick* the ECM into thinking the AC is on by splicing a switch at the A/C request line, diode it, and place it between the pcm and the pressure cycling switch? This way, both fans go on instead of just using the high-speed.
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Old 11-28-2006, 10:06 PM   #18
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When the high speed hits..they both run IIRC.
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Old 11-28-2006, 10:25 PM   #19
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Quote:
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When the high speed hits..they both run IIRC.
X2
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