EBCM issue
I got a new EBCM to fix the C1255 code. I installed it and it now throws 5 new codes. The old model number is 09356961 and the new model number is 09360921. This part was found somewhere in TN by my mechanic. Apparently the dealer has these on backorder. Did I get the wrong EBCM?
Where can I buy a replacement of the old one other than from the dealer? Thanks and :cheers: |
correct EBCM for your 1999..
is a GM part # 9367071 ..
here's the list: Replacement part sources New EBCM’s … below is a list of part #s. Check with Fred Beans for actual price & availability ($650 to $1000) Part Number: 10343433 All 2003-2004 Part Number: 12216561 All 2001-2002 Part Number: 9367071 All 1999-2000 w/o Control Active Brakes you may want to try: An alternative to buying a new one is to have your original rebuilt. For EBCM repair/replace Call Brandon 877-648-7530 at ABS FIXER or: www.absfixer.com $150. plus UPS....warranted as long as you own it |
Thanks for the reply. How do I know if I have active control brakes?
Do you think the EBCM I got, model number 09360921 is just the wrong part and that's why I have 6 Trouble codes now instead of one? FWIW, it plugs in and bolts up like the old one that is supposedly bad. Brandon can't fix the old one, unfortunately. :cheers: |
What year is the car?
The RPO code JL4 = Active Handling System - Look on driver side door or in glove box for this code What are the 6 codes you are getting? |
It's a 99 FRC
No JL4 code, it's got a JL9 though. Here are the TCS codes: 1247, 1271, 1272, 1282, 1283, 1285, 1296. They all have H(istory) and C(urrent) except 1283 which is H only. :cheers: |
C1247 Brake Pressure Differential Switch Activated
C1271 LF TCS Master Cylinder Isolation Valve Malfunction C1272 LF TCS Prime Valve Malfunction C1282 Yaw Rate Sensor Bias Circuit Malfunction C1283 Excessive Time to Center Steering C1285 Lateral Accelerometer Sensor Circuit Malfunction C1296 Master Cylinder Sensor Circuit Open or Shorted |
ttt.... I still need some help on this. Thanks, and :cheers:
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I have replaced the EBCM twice now and still have the same codes. I have seen reference to Active Control Brakes, which supposedly I have on my car. I have a JL9 option, not the JL4 which I read was Active handling. The EBCM that I currently have on my car is 09376711. Is there a chance that I need the other EBCM for non active control brakes? Thanks
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Originally Posted by skelly1
(Post 1571991148)
I have replaced the EBCM twice now and still have the same codes. I have seen reference to Active Control Brakes, which supposedly I have on my car. I have a JL9 option, not the JL4 which I read was Active handling. The EBCM that I currently have on my car is 09376711. Is there a chance that I need the other EBCM for non active control brakes? Thanks
Go to your local dealer with your VIN and get an estimate for how much it would cost to buy a new EBCM. Make sure they include the part number in the estimate. Bill |
Here is a description of the connections on the 1999 EBCM. Compare the wire colors going to the connector pins at the EBCM end of your harness.
Electrical Brake Traction Control Module (EBTCM) http://i58.photobucket.com/albums/g2...MConnector.jpg Connector Part Information 12160888 32 Way F Micro-Pack 100 Series (NAT) Pin Wire Color Circuit No. Function A BRN 641 Ignition positive voltage (ON) B BLK/WHT 1251 Ground C GRY 1787 Motor feed (High) (Magna steer) D RED 1242 Battery positive voltage (Solenoid valve) E RED 1642 Battery positive voltage (Pump Motor) F WHT 345 Motor feed (Low) (Magna Steer) 1-3 -- -- Not Used 4 LT BLU 1764 Steering wheel position sensor (SWPS) - B 5 -- -- Not Used 6 TAN/BLK 464 Delivered torque 7 GRY 1524 Back up lamp switch input (JL4) 8 -- -- Not Used 9 LT BLU 20 Stoplamp switch input 10 LT BLU 1122 Class 2 Serial Data 11 GRY 1056 +5 volt reference 12 BLK 884 LR Wheel Speed Sensor (High) 13 WHT 883 RR Wheel Speed Sensor (High) 14 TAN 833 RF Wheel Speed Sensor (High) 15 YEL 873 LF Wheel Speed Sensor (High) 16 -- -- Not Used 17 LT BLU 914 SWPS Pulse 18 -- -- Not Used 19 WHT 1765 Brake Pressure Deferential Switch Input ( Without JL4) 19 LT BLU 1659 Brake Pressure Deferential Switch Input (JL4) 20 LT GRN 1763 SWPS A 21 DK BLU 910 Yaw Rate Sensor Input (W/ JL4) 22 LT GRN/BLK 1338 Lateral Accelerometer Input (W/ JL4) 23 LT BLU 1059 SWPS Signal 24 BLK 901 Brake Pressure Sensor Input (W/ JL4) 25 ORN/BLK 463 Requested Torque 26 -- -- Not Used 27 ORN/BLK 556 Sensor Ground 28 RED 885 LR Wheel Speed Sensor (Low) 29 BRN 882 RR Wheel Speed Sensor (Low) 30 DK GRN 872 RF Wheel Speed Sensor (Low) 31 LT BLU 830 LF Wheel Speed Sensor (Low) 32 -- -- Not Used Bill |
Bill, from what you have above, that tells me that the difference between the modules should be whether it has JL4 or not. Active Handling. I gave the VIN to both dealers I bought the EBCM's from and they both said I needed the EBCM 09376711. After decoding the VIN, the only way that I can see that they can deduce that it is a JL4 or not is by where in the sequence it was built. In my case, it was the 17,339th car built in 1999. They keep saying that I have active brake control, which I think is wrong. If they really mean Active handling, I don't have that either since I don't have JL4 RPO code. I will get a look at the wiring when I get home from work. Mine should match up with the non JL4 pinout.
Per pin 21 above: If you have JL4, I assume you have a Yaw Rate Sensor. I have the Yaw rate bias code. Does that mean I have JL4? :cheers: |
[QUOTE=skelly1;1571994838]Bill, from what you have above, that tells me that the difference between the modules should be whether it has JL4 or not. Active Handling. I gave the VIN to both dealers I bought the EBCM's from and they both said I needed the EBCM 09376711. After decoding the VIN, the only way that I can see that they can deduce that it is a JL4 or not is by where in the sequence it was built. In my case, it was the 17,339th car built in 1999. They keep saying that I have active brake control, which I think is wrong. If they really mean Active handling, I don't have that either since I don't have JL4 RPO code. I will get a look at the wiring when I get home from work. Mine should match up with the non JL4 pinout.
Per pin 21 above: If you have JL4, I assume you have a Yaw Rate Sensor. I have the Yaw rate bias code. Does that mean I have JL4? :cheers:[/QUOT I may be missing something here but, if you press your taction control button the DIC should say traction controll AND active handling off or disengaged, or something like that, if you have active handling. If you don't, it will only tell you that you have turned off traction control. If you have active handling you should also be able to get into competive mode by holding the traction button down for about 5 seconds while stopped. it won't engage the competive mode if you are moving. B/G |
Originally Posted by skelly1
(Post 1571893806)
I got a new EBCM to fix the C1255 code. I installed it and it now throws 5 new codes. The old model number is 09356961 and the new model number is 09360921. This part was found somewhere in TN by my mechanic. Apparently the dealer has these on backorder. Did I get the wrong EBCM?
As it happens, I'm looking for a replacement module if you find out your new one is wrong for sure. |
Per Bill's post above: The wire going to pin 17 is lt. blu, the wire going to pin 19 is white, the wire going to pin 20 is lt grn, there is no wires going to pins 21 or 22 or 24, the wire going to pin 23 is lt blu. I would say that I do not have active handling on my car, which I already know because there is no JL4 on the glovebox sticker. Now, I just have to determine if the dealerships are using "active handling" and "brake control active" synonymously. If that's the case then I have the wrong module and both dealerships have a defective VIN decoding system.
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Originally Posted by srl99
(Post 1572001994)
My 1999 vert uses 09360921 which is ABS, TCS and AH {Active Handling}. I believe you have the wrong module for your car.
As it happens, I'm looking for a replacement module if you find out your new one is wrong for sure. |
:cheers: and thanks to all the folks on Corvette Forum C5 tech that helped me fix my TCS problem. It took three times R&R of the EBCM, two different stores, and a little convincing with info from the help on C5 tech to get the correct EBCM for my car. I did not have to eat either one of the wrong EBCM's either. Not sure if they are affiliated or a sponsor of THE Corvette forum but a big thanks to rmsautoparts.com for being patient with me and getting me the right part. Total damage $400.
If you have the TCS 1255 code, start talking RSO codes right away with your parts guy. What I understand is one EBCM is for JL4 and JL9 codes and the other is for except JL4. Don't let them go by your VIN, at least on a 99 FRC. My VIN came up in both systems as being JL4 and JL9 even though it is JL9 only and "except JL4". After doing the same job 3 times, I found that it is quicker to do the job shortly after driving the car home from work. That way the warm coolant drains quicker after removing the tiny petcock from the radiator. It is much easier with the upper radiator hose removed. Use torx bits that attach to 1/4 inch extensions rather than trying to use the bits that you use with 1/4 inch sockets. That 5th bolt in the bottom middle is deceiving, as who would expect there to be a bolt underneath a rubber grommet that has aluminum over it with a stud with a 10mm nut on it. Again, :cheers: |
yes there is a good chance you have the wrong part, i also have the wrong part. i have 16257049 and 807008620 which is a non active handleing module and pump and i need a09376711 module new #19244084 and pump # 10417038. the best way i know is to ck your console for a active handleing botton in front of the storage compartment on the console. it is a round button clearly marked active handleing.
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if you need to call me 803-424-0865. leave a message where you can be reached. does your unit have a V i am sure it does you are rite wrong part, you need A capital V. do you have 4 wheel abs?
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Originally Posted by billyward
(Post 1579088743)
if you need to call me 803-424-0865. leave a message where you can be reached. does your unit have a V i am sure it does you are rite wrong part, you need A capital V. do you have 4 wheel abs?
Sorry I don't have anything productive to add but when you get all this straightened out I'll (we'll) all be a little more educated on the differences and be able to sort them out quicker. |
1998 -2000 abs pump and module
Originally Posted by skelly1
(Post 1571908660)
It's a 99 FRC
No JL4 code, it's got a JL9 though. Here are the TCS codes: 1247, 1271, 1272, 1282, 1283, 1285, 1296. They all have H(istory) and C(urrent) except 1283 which is H only. :cheers: |
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