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Author Topic: A New Formula In Our Stall  (Read 61606 times)

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GTRS Fiero

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Re: A New Formula In Our Stall
« Reply #225 on: July 27, 2019, 09:45:14 pm »
I take it you think there is a difference between the two.
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TopNotch

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Re: A New Formula In Our Stall
« Reply #226 on: July 27, 2019, 10:18:49 pm »
Quote from: GTRS Fiero on July 27, 2019, 09:45:14 pm
I take it you think there is a difference between the two.
At least I'm hoping there is, that it will work with the scanner.
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TopNotch

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Re: A New Formula In Our Stall
« Reply #227 on: July 28, 2019, 09:56:04 am »
I have figured out why my scanner can't read the car. These cars (Park Avenue) came with either ALDL or OBD2 type connectors. This one has an OBD2 connector. The screen on my scanner said I need a "k9 key" if it is OBD2. More specifically, it is a "personality key", and there is a slot in the OBD2 connector that came with the scanner for plugging in these keys. I found one on Ebay for 8 bucks. When it arrives, I should be able to read the car's PCM, and find out if is working OK, and why the SES light is on.
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GTRS Fiero

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Re: A New Formula In Our Stall
« Reply #228 on: July 28, 2019, 09:58:38 am »
Score 3 points for TopNotch!
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GTRS Fiero

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Re: A New Formula In Our Stall
« Reply #229 on: July 28, 2019, 10:07:07 am »
Hmmm.  It can't read, because there is a personality disorder.
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TopNotch

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Re: A New Formula In Our Stall
« Reply #230 on: August 01, 2019, 09:36:42 pm »
Today I received my K-9 personality key, plugged it in, hooked up the scanner, and told it to read codes. It showed these three "History codes":
341 Intermittent Camshaft Sensor
350 EST Failure
670 QDM 4 Failure
Since they were "history codes", I figured that not all of them may be relevant now. So I told the machine to clear the codes. The only one that came back is 670 QDM 4 Failure. I did a little searching, and found this:

The QDM 4 code is set if any of those 4 lines are open. Obviously it's not the SES line, because the light is on while the key is on. What I'm thinking is, since the car doesn't have a 2-speed fan, maybe one of those fan control lines was left open.
Now here's the strange thing. Notice that the fan fuse is labeled "Cooling Fan/TCC Fuse". Does that mean that the TCC won't work if either of those lines is open?
Looks like I have a job ahead, checking some circuits.
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GTRS Fiero

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Re: A New Formula In Our Stall
« Reply #231 on: August 01, 2019, 09:50:09 pm »
Electronics is NOT my thing, but I read it as both fan relays would have to be out.

Anyway, that would explain why the SES light was formerly on.  In theory, a relay would be added.  Nothing needs to be on the other side of the relay.
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Raydar

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Re: A New Formula In Our Stall
« Reply #232 on: August 01, 2019, 10:00:20 pm »
Since the cooling fan/TCC fuse feeds both relays, I'm wondering if the PCM lets the switched relay outputs do "double duty" as diagnostic inputs, and detects the 12v through the relay coils, when it's not switching the relays on.

Like you, I am thinking that one of those fan relays may have been omitted. If so, you can probably jumper that circuit with an appropriate resistor, and fake out the input.
Wasn't it stated that the Check Engine light was always on, when the car was still being driven? You may have gotten the car back to its "original" state.

Regarding the TCC function on that fuse... ya' got me.
« Last Edit: August 01, 2019, 10:12:25 pm by Raydar »
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TopNotch

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Re: A New Formula In Our Stall
« Reply #233 on: August 02, 2019, 09:54:23 am »
I thought you might like to see my new  toy...

The OBD connector has a key plugged into the slot on top if it.


Main menu


Code list


Clear codes

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TopNotch

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Re: A New Formula In Our Stall
« Reply #234 on: August 02, 2019, 12:22:34 pm »
Quote from: Raydar on August 01, 2019, 10:00:20 pm
Wasn't it stated that the Check Engine light was always on, when the car was still being driven? You may have gotten the car back to its "original" state.
It's still always on, and has always been always on, any time the key is on.
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Raydar

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Re: A New Formula In Our Stall
« Reply #235 on: August 02, 2019, 01:14:26 pm »
Quote from: TopNotch on August 02, 2019, 09:54:23 am
I thought you might like to see my new  toy...
...

Very cool! What all does it do? Just OBD1.5? OBD 1 or 2?
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TopNotch

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Re: A New Formula In Our Stall
« Reply #236 on: August 02, 2019, 01:37:48 pm »
Quote from: Raydar on August 02, 2019, 01:14:26 pm
Very cool! What all does it do? Just OBD1.5? OBD 1 or 2?
I just got a new cartridge for it, so now with the right cartridge it will do anything from 1980 to the present. Back in the 80's (and early 90's), when cars first started getting electronic controls, nothing was standardized. Each company had their own standards and connectors. GM had ALDL, Ford had something else, etc. My gizmo came with connectors for a few different companies, but not all of them. And there's a generic one with wires with pins on the ends, and if you can figure out where to plug them, you could test any 80's car with electronic controls.
The new cartridge is for global OBD2, and is supposed to work with cars 1996 up to 2009, and I also got a CAN adapter which is supposed to extend coverage to the present. I haven't tested those yet.
« Last Edit: August 02, 2019, 01:43:52 pm by TopNotch »
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Raydar

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Re: A New Formula In Our Stall
« Reply #237 on: August 02, 2019, 04:54:13 pm »
Excellent!
Mine is an AutoXRay. It does OBD1 and OBD2 through 2005, and also comes with an "alternate" OBD2-looking cable that is supposedly for 1.5, as well as a handful of different OBD1 cables.
It does not do CANBUS, but it will read OBD2 data from newer vehicles. (Works fine with my 2010 G6. Haven't tried it on the new truck yet.)
Will yours decode ABS and/or BCM codes? I've been looking for something with that functionality.
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TopNotch

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Re: A New Formula In Our Stall
« Reply #238 on: August 02, 2019, 05:41:58 pm »
It's supposed to be able to do ABS. Not tested yet.
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GTRS Fiero

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Re: A New Formula In Our Stall
« Reply #239 on: August 02, 2019, 06:09:26 pm »
Quote from: Raydar on August 02, 2019, 04:54:13 pm
Excellent!
Mine is an AutoXRay. It does OBD1 and OBD2 through 2005, and also comes with an "alternate" OBD2-looking cable that is supposedly for 1.5, as well as a handful of different OBD1 cables.
It does not do CANBUS, but it will read OBD2 data from newer vehicles. (Works fine with my 2010 G6. Haven't tried it on the new truck yet.)
Will yours decode ABS and/or BCM codes? I've been looking for something with that functionality.

A cannabis reader?  Should help the police.  :)
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