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2 Anonymous Users
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
 
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Quote:
Yup - not your first day obviously... Thanks on Programmer link - sure hope I can confirm that that's the problem. (and it HAS TO be for my '90, as well as '90 L98 ? ) |
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Posted on: 2016/1/8 20:06
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LT5, Marc Haibeck ECM module, AUTOMATIC!!! 
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
 
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As far as I know it should fit both. I will try to verify that later.
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Posted on: 2016/1/8 21:03
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Nope - of COURSE NOT. Too easy access.
THat's the chime module.  Quote:
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Posted on: 2016/1/10 19:13
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Of COURSE not so lucky as one of those 2 modules. It's BEHIND the Instrument Cluster.
And IC is NOT coming out as did the '94 IC, OR the '87 IC. Looks like AT LEAST steering wheel bezel and dash frame will need to come out. ChuckB is rapidly EXPONENTIALLY approaching 'the' point... aka; As Is, Where Is. edit: Then again, maybe not 'AIWI' ('til tomorrow anyway) I/C out. Correct orientation got it out nice n easy. Just like '94... |
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Posted on: 2016/1/10 19:54
Edited by Schrade on 2016/1/10 20:09:49 |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Hard job (I/C) turned into an easy job.
Straight shot to A/C Programmer. Attach file:  IMG_8016.JPG (946.13 KB) |
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Posted on: 2016/1/10 20:26
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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If all else fails, read FSM.
Can anyone tell what these pictures are of? WHERE of? "Instrument panel left-hand sound insulator" ??? Attach file: IMG_8017.JPG (844.13 KB) IMG_8018.JPG (969.07 KB) IMG_8019.JPG (977.18 KB) |
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Posted on: 2016/1/10 21:00
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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My understanding is it is the "hush panel " (what I call it) that is above your knees. I thought you could remove the ac programmer without removing the dash. It should be against the firewall.
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Posted on: 2016/1/10 21:25
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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You see it in post 1 pic?
Near the door? Or tranny tunnel? |
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Posted on: 2016/1/10 21:50
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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I think I found it.
I think somethin' else too - woulda' been easier to do a can opener through firewall. Now - to remove, and test harness leads....... Attach file: IMG_8020.JPG (962.51 KB) |
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Posted on: 2016/1/10 22:14
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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More progress...
Attach file: IMG_8021c.JPG (959.40 KB) |
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Posted on: 2016/1/10 23:41
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Now I'm going sideways (tomorrow), since another flow chart stopped me ALSO @ A/C Programmer, and since the test is NOT testing an individual circuit - step 2 here:
Attach file: IMG_8023.JPG (975.73 KB) |
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Posted on: 2016/1/11 0:01
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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Not sure what that flowchart will tell you unless your blower motor runs all the time?
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Posted on: 2016/1/11 4:27
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Sure is Matt; I guess I didn't mention that?
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Posted on: 2016/1/11 4:54
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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Quote:
Add it to the list...lol. I guess all signs point to.... |
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Posted on: 2016/1/11 15:13
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Plugged everything in, except for Heater and A/C Programmer - from Step 2 post 61 above (Blower runs all the time).
Blower was Off. next step... ... tomorrow. ======================================== edit: Then again, turn it on, and listen to the fan come up, and start running. Open in Circuit 65. Damn!!! Tonight, confirm that somewhere in diags for OTHER problems, there is a reference to fault in Circuit 65........... Now I'm remembering that I didn't plug in the 2 'relays' [?], post #1. Damn. Anyone know what those 2 devices are? |
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Posted on: 2016/1/14 22:29
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Quote:
That's the Bose and 2nd fuel pump relays (in pic post #1). Uploaded from iPad - gettin' some youngin' learnin' in me! Attach file:  image.jpeg (223.45 KB) |
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Posted on: 2016/1/15 19:47
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Alright - Chart 3 Blower runs all the time...
Step one pull A/C Head, result still running. Says replace A/C Head Unit. So that would make Radio Head Unit inoperative??? Should be able to confirm by other symtoms' Flow Charts. |
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Posted on: 2016/1/15 20:46
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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In the earlier c4s the blower fan is almost always a bad blower control module. I know the fsm might say otherwise, but that's my research. Not to say that's your problem with all of the other symptoms you have.
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Posted on: 2016/1/16 5:16
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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I wish SO MUCH that that was it Matt; but I'm about 99.9% certain not........
Now I'm stuck at Tech 1 use on ANOTHER Flow Chart. |
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Posted on: 2016/1/16 16:52
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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I'm stuck 2 Flow Charts for Tech 1 need.
So I decided to back it out, warm to Closed Loop, and bath. EVERYTHING IS WORKING PERFECTLY, interior gutted D Side. Attach file: IMG_8110c.JPG (970.16 KB) |
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Posted on: 2016/1/16 18:22
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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And just noticed this:
REMAN UNIT!!! Attach file: IMG_8113c.JPG (889.46 KB) |
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Posted on: 2016/1/16 21:46
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Fired it twice after soap & water.
Everything worked perfectly both times. STILL doesn't tell me if I have a short / open lead, or if a device is intermittent....... Quote:
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Posted on: 2016/1/17 1:02
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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Could be bad solder joints in the unit, just a thought.
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Posted on: 2016/1/17 1:34
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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I'll have to gently ISOLATE the individual leads, and wiggle them. I HAVE seen the tranny selector lights flicker - probably something there.
Anyway, there IS ONE manifestation that I've had, since day 1 that I owned it - in the odometer. And I just saw yesterday the full problem in odometer, before it transitions to mileage....... I don't know it this is related or not - it has remained constant in it's error, while I diagnose this new issue here. When you first turn ON ignition, LCD lights up ALL segments in each digit. 2 of my digits are 'scrambled', as FSM calls it. First pic below. Then, same digits are incomplete in mileage - second pic. How many miles on my car? 3x,x44 Anyone with thoughts??????????? Quote:
Attach file: IMG_8116c.JPG (944.27 KB) IMG_0054.JPG (953.30 KB) |
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Posted on: 2016/1/17 5:05
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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If that's your only problem I'd say it's the LCD. If you have a lot of random dash problems the dash is fed from the CCM so I'd look there or grounds (which you already did).
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Posted on: 2016/1/17 12:49
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Fired again yesterday before plugging in the scanner, and again everything worked perfectly.
The scanner again showed the LED Dimmer Open or Shorted, as history... Back in again............................... Quote:
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Posted on: 2016/1/25 16:41
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Anyone got a picture of 2 Grounds?
(ed.: 201 says, "Below LH Side of I/P, on LH Kick Panel, 202 says, "Below RH Side of I/P, on RH Kick Panel I'm guessing the I/P is the WHOLE dash? ) Neither is illustrated in FSM... Attach file: IMG_8174.JPG (504.12 KB) |
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Posted on: 2016/1/25 23:50
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| joeld | Re: Help on CCM pull... | ||
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Guru
 
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Can't help with a picture, but: I/P is instrument panel, also called "the dash panel"
Joel |
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Posted on: 2016/1/26 0:11
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1989 Coupe,L98 automatic |
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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No pic offhand, my guess is each ground will be on either side of the footwell for the driver.
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Posted on: 2016/1/26 3:28
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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Try this, Chuck:
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Posted on: 2016/1/26 3:33
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Yesterday, again, everything was in order again, except the chime for 'key in ignition, or lights on.
Today, all in order again. Time to start wiggling harnesses, and re-connecting connectors, where accessible, with DE Grease... |
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Posted on: 2016/1/26 20:15
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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With key on Accessory, Radio was acting silly - antenna up, down, then Radio off, and it still played!!!
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Posted on: 2016/1/26 20:42
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_________________
LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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New battery.
Clean, re-grease EVERY CONNECTOR while accessible. Anyone know how to re-size iPad photos? Or change saved size? It's a pain re-sizing every photo to upload here, from camera card to computer... Matt - you know what time limit is, to edit / add snappics to posts? I lose edit capability @ about an hour or so here ( got alarm set now ). Attach file: image.jpeg (196.38 KB) |
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Posted on: 2016/1/26 21:59
Edited by Schrade on 2016/1/26 22:16:39 |
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_________________
LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Try again here... lost that one.
New battery. Clean, re-grease EVERY CONNECTOR while accessible. Anyone know how to re-size iPad photos? Or change saved size? It's a pain re-sizing every photo to upload here, from camera card to computer... Matt - you know what time limit is, to edit / add snappics to posts? I lose edit capability @ about an hour or so here ( got alarm set now ). Attach file: IMG_8175c.JPG (907.59 KB) |
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Posted on: 2016/1/26 23:25
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Break open, grease pins + seal.
What is this? Attach file: IMG_8176c.JPG (874.30 KB) |
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Posted on: 2016/1/26 23:29
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Tie all 8 junction straps together, order of removal...
and examination mounting stud............................. Attach file: IMG_8177c.JPG (882.65 KB) IMG_8178c.JPG (860.76 KB) |
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Posted on: 2016/1/26 23:37
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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All 8 junction straps to B+ re-seated.
(MANY FLOW CHARTS REFERRED TO CIRCUIT 'X' TO B+, OPEN OR SHORT). Relay, whatever it is - ANYONE??? , re-connected... And a connector ground strap, straight from battery (-) post, cleaned and re-seated. At the Yellow '?'; part of Airbag Circuit??? Attach file: IMG_8182c.JPG (918.20 KB) IMG_8183c.JPG (913.66 KB) |
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Posted on: 2016/1/27 19:27
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Cleaned, re-greased...
It LOOKED good before - but how many times do guys say that a ground 'LOOKED' good - P F F T T T. I didn't eat my carrots last night, so I cannot see those danged electrons... Attach file: IMG_8184c.JPG (908.17 KB) |
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Posted on: 2016/1/27 19:32
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| joeld | Re: Help on CCM pull... | ||
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Guru
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Might want to read this thread about dielectric grease, some good info from BillH.
Joel http://www.corvetteforum.guru/modules ... id=147280#forumpost147280 |
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Posted on: 2016/1/27 20:35
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1989 Coupe,L98 automatic |
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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I didn't see pro/con, on DE Grease there Joel...
But I put on a film every connector that I could get my hands on. Anyway, I fired her with a new battery, + re-seated connections. Spooled up fine, everything works - A/C, Radio, but I DO have to wiggle the key to get the 'Key In Ignition' chime to sound off. Ignition Switch is stiff / sticky, in a way. Needs graphite / oil. ??? And now, ZERO LCD flicker. BUT, bulbs NOW in left side of I/C (RPM's) are flickering. That's something I've done, since they didn't do that immediately after I/C re-assembly. Hmm... |
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Posted on: 2016/1/27 21:26
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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So I'll have to pull the I/C again, double check connections there.
And, pull Ig. Switch cylinder, since that is dirty, fouled obviously... Does the wheel have to come off for IG Switch access??? |
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Posted on: 2016/1/27 22:08
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| joeld | Re: Help on CCM pull... | ||
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Guru
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Yea, strg wheel has to be removed. Does car have air bags? If so then that adds a step also for coil removal.
Joel Here's a picture to give you a good idea of the key tumbler location. http://www.steeringcolumnservices.com/gmtilt.php |
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Posted on: 2016/1/27 22:26
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1989 Coupe,L98 automatic |
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| Matatk | Re: Help on CCM pull... | ||
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Webmaster
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Not much help in identifying your connectors, sorry.
For the ignition I would use a small amount of contact cleaner followed up with compressed air and then graphite to lubricate. No need to disassemble it. |
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Posted on: 2016/1/28 2:51
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Old battery tested good. Not good; means weak current was NOT the problem...
Question now is, does LED Circuit go through Ig Switch? Even if it does, I think there's other bad connections... LED flicker is GONE. But RPM bulbs flicker MIGHT be too much grease... AND, RPM needle is 'binding'. ??? |
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Posted on: 2016/1/28 2:55
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Fired up again, from Closed Loop the other day.
No codes. Chimes for Lights On worked. As did Chimes for Key In Ignition. Re-assembly is a pain, but no 'problem'. Breakdown for problem re-appearance is worse pain... |
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Posted on: 2016/1/30 20:24
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Where is Ignition Switch in FSM?????
Got it; thanks........ |
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Posted on: 2016/1/31 20:04
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Instead of pulling Steering Wheel, I'm going to try to 'flush' Ig Switch.
Rags under column, and spray lube into Ig Switch, and work the key a few times. I don't believe this will interfere with chip read....... |
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Posted on: 2016/1/31 20:20
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Stuck the spray tube all the way into Ignition Switch, and let loose. Then worked the key On, Accessory, back and forth.
Then put shop vac to the switch, pulled out what excess that I could, vac down to column 'cuff', pulled more run-off. Key in Ignition, NO chime. Spun up fine, chime OK for 'Lights On'. Still listening, if anyone else is reading their own FSM's... edit: 'Lights ON' chime now is fail. |
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Posted on: 2016/1/31 21:04
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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Transfer
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Alright - Flow Chart for fail Key in Ig Chime.
Step 1 - the lights DO come on. Step 2: What the hell is 'C'??????????? I know C1 - C16, and D1 - D16. ??????????????????????????????????? This test is obviously doing a by-pass. But where??? Attach file: IMG_8202.JPG (701.21 KB) IMG_8203.JPG (777.18 KB) |
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Posted on: 2016/1/31 21:58
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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| Schrade | Re: Help on CCM pull... | ||
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Elite Guru
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Ok - text is necessary to post.
No text in post = corrupt content error http://www.corvetteforum.guru/modules ... hp?topic_id=21136&forum=5 DAMN WTF IS GOIN ON??? Attach file: IMG_8204.JPG (834.75 KB) |
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Posted on: 2016/1/31 22:13
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LT5, Marc Haibeck ECM module, AUTOMATIC!!!
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