NSW Corvettes

Technical Tips => Electrical-Electronics-Air-Lighting-Guages-Security-Vacuum => Topic started by: MADLT1 on June 26, 2008, 01:59:21 PM

Title: 92 vett wireing
Post by: MADLT1 on June 26, 2008, 01:59:21 PM

a friend is haveing engine problems and needs a wireing diagram for his 92 vett,can anyone post some pics?

Title: 92 vett wireing
Post by: 87Z51 on June 26, 2008, 05:44:56 PM

Wiring diagrams

http://www.autozone.com/az/cds/en_us/0900823d/80/21/97/1c/0900823d8021971c/repairInfoPages.htm
92 - 95 VIN P engine schematic
89 -92 Chassis.

Title: 92 vett wireing
Post by: MADLT1 on June 26, 2008, 06:58:41 PM

thanks mate i wil pass that on

Title: 92 vett wireing
Post by: Cameron 77C3 on June 26, 2008, 07:21:47 PM

I grabbed it and PDF it for ya Glenn.

Click any where in the pictures and it will give you a PDF printable version.


(http://www.splashedpaint.com/cameron/ForumPicsPrompts08/TechTips/Electrical/92VetteWiring/01b.jpg) (http://www.splashedpaint.com/cameron/ForumPicsPrompts08/TechTips/Electrical/92VetteWiring/92VetteWiring.pdf)

(http://www.splashedpaint.com/cameron/ForumPicsPrompts08/TechTips/Electrical/92VetteWiring/02b.jpg) (http://www.splashedpaint.com/cameron/ForumPicsPrompts08/TechTips/Electrical/92VetteWiring/92VetteWiring.pdf)

Title: 92 vett wireing
Post by: MADLT1 on June 26, 2008, 07:39:03 PM

thanks cam will forward it on:23

Title: 92 vett wireing
Post by: MADLT1 on June 29, 2008, 01:36:53 PM

this was his reply................HI NEED FULL WIRING DIAGRAM
PIN VOLTAGE TABLE
IS ALL THE VOLTAGES AT THE COMPUTOR PINS
WHEN SYS COMES UP CAR WONT START THANKYOU

Title: 92 vett wireing
Post by: 87Z51 on July 04, 2008, 09:42:57 PM

Quote

PIN VOLTAGE TABLE IS ALL THE VOLTAGES AT THE COMPUTOR PINS
 

You need the elec suppliment to the Factory Service Manual (FSM ) for that sort of info.

As his car has a CCM it is possible that something non engine related is causing the CCM to prevent engine start .CCM monitors and self checks alot of chassis systems , airbags , etc Some faults bring up a codes , some  will not allow engine to fire.
Very common fault is bad earth on the  motion sensors for the airbags.
The FSM has the proceedures for pulling the fault codes from the computer so you can identify the system causing problems.
does engine crank over ?

Title: 92 vett wireing
Post by: C4MOORE on July 05, 2008, 03:03:43 PM

I think 87Z51 might be onto it in regard to the airbag.
When we tried to start my 91 for the first time after conversion the starter motor would turn over but the engine would not fire up.
As we did not refit the airbag we did not think the airbag fuse was needed. On closer inspection of wiring diagrams and I think we downloaded the codes which drew our attention to the airbag circuit. We replaced fuse cartridge and it started.

Hey MADLT1 are we talkin bout Cris corvette?

Title: 92 vett wireing
Post by: 87Z51 on July 06, 2008, 01:29:32 PM

DOES THE ENGINE CRANK OVER ?????

If not then prob a VATS problem. If crank and no fire ECM / CCM related.
You need to pull the codes to see  what is in fault.

Jumper pins A & G on the ALDL under the dash. and turn the ignition to the "on" position but don't start the car.
Then look at the LCD display on your dash.
( See http://www.corvettebuyers.com/c4vettes/codes.htm)

 The LCD display should automatically start sequencing through the various modules (1, 4, & 9) and will show any trouble codes that may have occurred in each of those modules.

The 3 modules it'll display are:

Module 1 for the "CCM" ,
Module 4 for the "ECM",
Module 9 for "ABS/ASR."

After your display has finished doing it's automatic sequence, you should simply see "1.0" on your LCD display.

Now hit your "Trip/Odo" button once. You should see the display change to "1.1" This is where your CCM codes are stored.
Now, just hit your "Eng/Met" to simply scroll forward through every trouble code that you may have had. To move backward through each of the codes, simply hit the "Fuel Info" button.

Write down each of the codes, current codes will show a "C" in front of the trouble code number; history codes will show an "H" in front of the trouble code number.
When you're done writing down the codes, simply turn off the ignition and remove the A/G jumper.

The Buttons:
The "Fuel Reset" & "Trip Reset" buttons switch you between each of the Modules.
The "Gauges" & "Trip/Odo" buttons switch you between various functions within each module.
The "Fuel Info" & "Eng/Met" buttons switch you between each trouble code/parameter within each function.

The Modules:
1.0 Waiting for Instructions; CCM
1.1 Display CCM DTCs
1.2 Display CCM Data
1.3 Display CCM Inputs Status
1.4 Cycle CCM Outputs
1.7 Clear CCM DTCs
4.0 Waiting for Instructions; ECM
4.1 Display ECM DTCs (LT1 Only)
4.7 Clear ECM DTCs (LT1 Only)
9.0 Waiting for Instructions; ABS/ASR
9.1 Display ABS/ASR DTCs
9.7 Clear ABS/ASR DTCs

http://www.corvettebuyers.com/c4vettes/codes.htm

Title: 92 vett wireing
Post by: C4MOORE on July 06, 2008, 06:36:47 PM

TextMILLION DOLLAR QUESTION, THAT REALLY IS!!


TextTextTextDOES THE ENGINE CRANK OVER ???????????Text??????????Text??????/Text????????/

Title: 92 vett wireing
Post by: C4MOORE on July 06, 2008, 06:39:38 PM

Well that did not go as well as I expected... ;58

Title: 92 vett wireing
Post by: MADLT1 on July 06, 2008, 09:01:03 PM

i will visit him on wed to check progress,i think he siad it cranked over but was only running on 6 cylinders,i have been emialing him all of the info,thanks guys,oh by the way dave it is not chris car,;32