My SRC (service ride control light) is on...I guess I admit that I am dumb because many have tried to explain how to pull codes, but I am still confused.
1. I need a picture of the ALDL that is on a similar 1995 coupe like mine (different from all others b/c I think I have the OBDII connector not OBDI connector even though computer is an OBDI)

2. It would not hurt to point at or circle the two spots where I need to used the paper clip to jump the places...b/c I am too dumb to understand A and E or whatever the hell it is.

3. MUCH THANKS TO WHOMEVER TAKES THIS ON!

4. Forgive my stupidity...please don't type stuff up...I really need a picture! =)

BT

 

Count the holes. There is 8 on top and 8 on bottom. You stick paper clip in 4 and 12 turn the key don't start it.

 

Give this a try BigTexas, hope it helps. Unfortunately I don't see the number specified for the selective ride control module on 94 & 95 cars, but since numbers for other modules are listed perhaps you can determine that by process of elimination, good luck.

Pulling Codes Revisited
________________________________________


For 1994 and later models, you will need to recover the codes using a special procedure involving the speedometer and the odometer as explained in the service manual or use a special diagnostic device known as a scan tool.

For the '94 - '95, 16 pins (but still OBD I):







Beginning in 1994, you short pin "12" to pin "4" and once again 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 and read the module number on the trip odometer.

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.

 

I appreciate the effort, but that is just for regular codes. I need a picture for the SRC codes. They told me that you short A to E or something like that. And the SRC light is suppose to flash the codes. BUMP!

 

Check this link out
Jim
http://forums.corvetteforum.com/c4-t...very-code.html

 

I will look into it! thanks...pictures of where to pull src codes still appreciated though...

 

You are correct, after doing some research the SRC codes will not display in the speedometer except on a 96.
The procedure for reading them is very similar however. Note that pins in the 94 & 95 ALDL are numbered not lettered, short pin 12 to pin 3 as illustrated in my first post and the SRC light in the DIC should flash the numbered codes, good luck.

 

I appreciate your diligence, toptech. However, I just tried to short pins 12 and 3 and my SRC light just stays on. It did not blink. Any other ideas? Short pin 12 to.........?

 

Find somebody with a tech 1 or tech 2. If you are not able to retrieve any codes at all you may have a dead SRC controller. It is rare to have a controller go bad, I suspect you are not doing the process correctly.

 

You are supposed to short pins 3 & 4. 4 is the ground on the ALDL and slot 12 is the CCM interface.

 

I'm pretty sure those are the correct pins, but I don't have a service manual for a 95. My 93 book does have a chart to follow if codes fail to display, in brief it consists of checking power and ground to the module. My book indicates engine fuse #2 (15 amp) is the power source so I would check that, should be in the fuse box at the right side of the dash if it is the same as a 93. If that is not the problem you will likely need the correct service manual or some kind soul to copy the section you need, best of luck.

Thanks abc-123, that is likely the problem!

 

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



Selective Ride Codes:

On the 1989 Corvette, if you have the Selective Ride Option, any codes associated with the SRC will cause the Service Selective Ride System light to flash when you short ALDL pins "A" to "B". The sequence uses the same 12, 12, 12 delimiter as the ECM code display uses.

Some later Corvettes require you to short pins "C" to "A" to flash codes on the SSR light. It varies with the model and you will need to consult the service manual for your particular model year to find out if these are the proper pins or if there is another technique requried.

should add that CAC is on the verge of posting a comprehensive tech. article about SRC....history, how it works, parts availability and service issues.

Figure on it going up sometime this month.
__________________
Hib Halverson

 

If you would read the rest of the responses, you will notice 4-12 for the SRC system is not correct.

 

... 95 is a strange year and it is best to check the FSM as it will have the PROPER way to do it as well as what the codes are when you count the flashes.

 

95 is not a strange year. They incorporated the OBD2 connector in 94. 95 was just a carry over until 96 when OBD2 functionality became live.

Not touchy, just tired of incorrect answers being posted. Sucks when you do a search for an answer and you get bad info.

 

Actually it is strange because some OBDII functions were active and cannot be read without a scanner. But you knew that of course but did not share that. So what are the flashing light indicators of how about a list you know one flash,two flashes etc. etc. And now how about some correct factual information

OBD 1.5
OBD 1.5 refers to a partial implementation of OBD-II which General Motors used on some vehicles in 1994 and 1995 (GM did not use the term OBD 1.5 in the documentation for these vehicles - they simply have an OBD and an OBD-II section in the service manual.)

For example, the 94-95 Corvettes have one post-catalyst oxygen sensor (although they have two catalytic converters), and have a subset of the OBD-II codes implemented. For a 1994 Corvette the implemented OBD-II codes are P0116-P0118, P0131-P0135, P0151-P0155, P0158, P0160-P0161, P0171-P0175, P0420, P1114-P1115, P1133, P1153 and P1158.[1]

This hybrid system was present on the GM H-body cars in 94-95, W-body cars (Buick Regal, Chevrolet Lumina ('95 only), Chevrolet Monte Carlo ('95 only), Pontiac Grand Prix, Oldsmobile Cutlass Supreme) in 94-95, L-body (Chevrolet Beretta/Corsica) in 94-95, Y-body (Chevrolet Corvette) in 94-95, on the F-body (Chevrolet Camaro and Pontiac Firebird) in 95 and on the J-Body (Chevrolet Cavalier and Pontiac Sunfire) and N-Body (Buick Skylark, Oldsmobile Achieva, Pontiac Grand Am) in 95.

For ALDL connections, pin 9 is the data stream, pins 4 and 5 are ground and pin 16 is battery voltage.

Additional vehicle-specific diagnostic and control circuits are also available on this connector. For instance, on the Corvette there are interfaces for the Class 2 serial data stream from the PCM, the CCM diagnostic terminal, the radio data stream, the airbag system, the selective ride control system, the low tire pressure warning system and the passive keyless entry system

 

I love how you copy Hib Halverson. So you have no real knowledge, do you? And thanks for backing up my claim that 95 is not an odd ball year.

 

Careful with the personal attack.

 

He he he Nope not Hib. It is obviously easier to cut and paste than to make my arthritic fingers type. Point is 94 and 95 are the only years that are OBD 1.5 and have both OBD I codes readable via the dash and OBD II that need a scanner If that ain't odd I do not know what is. So where is your knowledge you said you can get the SRC to flash but what do the flashes mean?

 

Any other questions?


12 = Start of sequence
13 = Left rear time out
14 = Right Front time out
21 = Left Front time out
22 = Right Rear time out
31 = Left Front out of position
32 = Right Front out of position
33 = Left Rear out of position
34 = Right Rear out of position
23 = Loss of vehicle speed
41 = Selective ride control switch short to voltage
42 = Selective ride control switch open contacts
43 = selective ride control switch circuit open.