...and instructions to pull codes for PKE would be great help to him too. Yeah I knew they were different. I wish I could find that post that had all the info...thx

 

I cant find it. I had a pic somewhere and it explained what each pin was for.

 

Yeah i dont know that bit either!! but ill put up the normal diagnostic procedure,it might help someone somehow....

How to View Stored Diagnostic Codes on 1994 – 1996 Corvettes

You display codes on the digital LCD speedometer readout, by using a re-shaped paper clip to short ALDL pin 4 to pin 12.

1994 – 1996 Corvette ALDL connector:



You short pin "12" to pin "4" and turn the ignition switch to "On" without starting the engine.

The speedometer will display any codes using the same protocol as the 1990-1993 model but there are some changes in the designation for the modules plus additional modules are added:

Module "1" is still the CCM module.

Module "4" is now called the PCM module (Powertrain Control Module) because automatic transmission computer control was added to Engine Control Module in 1994.

Module 7 (on the 1996 model only) is the RTD module. (This is the Real Time Dampening module which replaced the Selective Ride Control module in 1996).

Module 9 is the ABS/ASR module number from 1994 through 1996.
Finally, Module "A", the DERM (Dynamic Energy Control Module --- (the air bag control module) will be requested to show any codes.

Just like the 1990-1993 display, you read the codes on the speedometer (big) and read the module number on the trip odometer (small).

A series of dashed lines for instance “ - - -“ indicates no more stored codes for that module.

A code showing as “C12” for the CCM module (module #1) means no codes are stored. So C12 is a good thing to see.

Again, you can cause the codes to repeat by turning the ignition off for five seconds and then back on.

Turn the ignition off and remove the short to restore normal operation.