Odd TCS Error happening
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
Odd TCS Error happening
Recently I have been experiencing an intermittent condition where I will be driving and usually it has happened on a long gradual curve where the "ACTIVE HANDLING" warning will flash on the DIC the car will vibrate and cut power then the TCS light will stay on and I get the "SERVICE TCS" warning.
This also happened when driving in a straight line once before.
Stop the car, turn off, let set 10 to 30 sec, turn on, start, no error.
A couple of times I have put the TCS into "COMPETITIVE DRIVING" mode and I don't get the ACTIVE HANDLING warning...which makes sense since it's turned off.
Error codes pulled from DIC are:
C1225 H
C1281 H
C2100 HC
C2105 HC
C2115 HC
I know that the last 3 are related to the TPMS they have been dead for years and usually I just clear them and no issues.
This past weekend I did a full trans and diff flush and fill (correct fluids and fill levels).
Replaced shocks on all 4 corners (Johnny O'Connell Stage 1 shocks...AWESOME so far)
Rear tires are almost at the wear bars but still have tread...not bald.
Thinking I'll go ahead and put tires on the rear ASAP but still wanted to bounce this situation off other members to see if you may have other suggestions to check.
Thanks in advance.
This also happened when driving in a straight line once before.
Stop the car, turn off, let set 10 to 30 sec, turn on, start, no error.
A couple of times I have put the TCS into "COMPETITIVE DRIVING" mode and I don't get the ACTIVE HANDLING warning...which makes sense since it's turned off.
Error codes pulled from DIC are:
C1225 H
C1281 H
C2100 HC
C2105 HC
C2115 HC
I know that the last 3 are related to the TPMS they have been dead for years and usually I just clear them and no issues.
This past weekend I did a full trans and diff flush and fill (correct fluids and fill levels).
Replaced shocks on all 4 corners (Johnny O'Connell Stage 1 shocks...AWESOME so far)
Rear tires are almost at the wear bars but still have tread...not bald.
Thinking I'll go ahead and put tires on the rear ASAP but still wanted to bounce this situation off other members to see if you may have other suggestions to check.
Thanks in advance.
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Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
Thanks 8vette7. I'll have to remember to pull over and pull the codes BEFORE shutting down next time it happens.
IF it does turn out to be the SWPS it looks like I'm going to have a hard time finding a replacement and that they aren't cheap.
Can they be 'repaired' or do you pretty much have to replace them when/if they go bad?
IF it does turn out to be the SWPS it looks like I'm going to have a hard time finding a replacement and that they aren't cheap.
Can they be 'repaired' or do you pretty much have to replace them when/if they go bad?
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
Thanks for the help and links 8vette7. This weekend I'll have to pull the wheels and check the connectors from the first reply and maybe check the SWPS while I'm at it.
Hopefully I can get it all sorted out as currently my FRC is my daily driver and I have a 180 mile daily round trip commute. Kinda need to keep all things sorted out.
Hopefully I can get it all sorted out as currently my FRC is my daily driver and I have a 180 mile daily round trip commute. Kinda need to keep all things sorted out.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Before you get too far into the system, the EBTCM MUST have sufficient supply voltages and a proper ground for the module to work properly. Recommend that you check the test slots on top of all EBTCM fuses to a good chassis ground Especially Under hood fuse box Fuse #5 ABSTRANS 10 amp. That fuse is supplied by the ignition switch and the voltage at that fuse can be LOW! Make SURE that the motor lug ground and where it attached to the chassis is 100%
8th Gear
Joined: Sep 2014
Posts: 8
Likes: 0
From: Mount Joy Pa
Hello,
I have a 2001 Coupe, I get the error code C1225 when ever I do a quick acceleration up to 100 MPH. Cleared the code and did another run. Same thing happened at exactly 100 MPH. Went home, pulled the left front wheel and inspected the sensor wire harness and both ends of the female connectors. All were clean and it proper position. I know the previous owner had the EBTCM repaired. Any idea's? Probably shouldn't worry about it since everything is fine under normal speeds.
I have a 2001 Coupe, I get the error code C1225 when ever I do a quick acceleration up to 100 MPH. Cleared the code and did another run. Same thing happened at exactly 100 MPH. Went home, pulled the left front wheel and inspected the sensor wire harness and both ends of the female connectors. All were clean and it proper position. I know the previous owner had the EBTCM repaired. Any idea's? Probably shouldn't worry about it since everything is fine under normal speeds.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
LOL!! Your are NOT alone with this issue but, one of only a FEW who ever expierence it. Mine would error out at 47 mph and I had another forum member who would error out at 103. The only solution is a new EBTCM. Been there done that. Paid the $$$$$$$$$$$$$$$$$ for the new EBTCM.
Bill
Bill
8th Gear
Joined: Sep 2014
Posts: 8
Likes: 0
From: Mount Joy Pa
Thanks for confirming, Bill.
I guess I will have to let off the gas pedal before 100 MPH to avoid the annoying check engine light. Ha Ha.
I am glad that I won't have to bother trying to find the issue or replace any parts. The previous owner did pull the EBTCM back in 2013 and had it repaired by ABSFixer in Highlandville MO. 877-648-7530
I called them and they confirmed that the repair is not always 100%. In other words, it's repaired for normal driving conditions. The repair cost $215.50
I guess I will have to let off the gas pedal before 100 MPH to avoid the annoying check engine light. Ha Ha.
I am glad that I won't have to bother trying to find the issue or replace any parts. The previous owner did pull the EBTCM back in 2013 and had it repaired by ABSFixer in Highlandville MO. 877-648-7530
I called them and they confirmed that the repair is not always 100%. In other words, it's repaired for normal driving conditions. The repair cost $215.50
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Thanks for confirming, Bill.
I guess I will have to let off the gas pedal before 100 MPH to avoid the annoying check engine light. Ha Ha.
I am glad that I won't have to bother trying to find the issue or replace any parts. The previous owner did pull the EBTCM back in 2013 and had it repaired by ABSFixer in Highlandville MO. 877-648-7530
I called them and they confirmed that the repair is not always 100%. In other words, it's repaired for normal driving conditions. The repair cost $215.50
I guess I will have to let off the gas pedal before 100 MPH to avoid the annoying check engine light. Ha Ha.
I am glad that I won't have to bother trying to find the issue or replace any parts. The previous owner did pull the EBTCM back in 2013 and had it repaired by ABSFixer in Highlandville MO. 877-648-7530
I called them and they confirmed that the repair is not always 100%. In other words, it's repaired for normal driving conditions. The repair cost $215.50
Bill
Last edited by Bill Curlee; Aug 8, 2018 at 01:13 PM.
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
Well, after almost a month and a half and 3500+ miles it happened again.
Pulled over and pulled the following codes before turning off the car.
TCS - C1281 C
BCM - B2723 H
BO-RFA - C2100 H
C2105 HC
C2115 HC
Sure is a bit unsettling when you're driving along and suddenly power cuts and the DIC warning pops up.
Pulled over and pulled the following codes before turning off the car.
TCS - C1281 C
BCM - B2723 H
BO-RFA - C2100 H
C2105 HC
C2115 HC
Sure is a bit unsettling when you're driving along and suddenly power cuts and the DIC warning pops up.
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
Code meanings above in RED.
Steering Wheel Position Sensor is on its way out. What you felt is the AH system trying to step in because of erroneous input from the SWPS. Replace the SWPS.
The pass Key error is probably because the pellet on your key is dirty and from time to time it gets read incorrectly. I would switch off to your backup key or clean both the key pellet and the reader contact that reads the key. It is located inside the key cylinder.
The RFA errors are telling you that the specified TPMS are not reporting in. If the TPMS are of unknown age it is probably time to replace all 4.
Steering Wheel Position Sensor is on its way out. What you felt is the AH system trying to step in because of erroneous input from the SWPS. Replace the SWPS.
The pass Key error is probably because the pellet on your key is dirty and from time to time it gets read incorrectly. I would switch off to your backup key or clean both the key pellet and the reader contact that reads the key. It is located inside the key cylinder.
The RFA errors are telling you that the specified TPMS are not reporting in. If the TPMS are of unknown age it is probably time to replace all 4.
I figured that the SWPS was going from the previous responses...SIGH. Not something I can afford right now but may be stuck addressing.
I get the key errors off and on...it comes and goes. I almost wonder if it's that the tumbler cavity in the key cylinder needs to be replaced. I have noticed that I can actually remove the key from the ignition and the car keep running. LOL
Yeah, the TPMS sensors are bad. I know that two are dead and the other two work intermittently.
The SWPS is the one I am most concerned about especially due to cost of replacement.
Tech Contributor
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From: Charlotte, NC (formerly Endicott, NY)
OP: How is your wheel alignment? If the steering wheel is off center while driving the car down a straight road this code can be set. If the car pulls one way or the other this code can be set. Once the offset of the steering wheel exceeds a certain angle from 0 (0 being straight ahead) the EBCM can interpret that turn as an error in the steering sensor. You may need nothing more than a good wheel alignment.
Bill
Bill
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,807
Likes: 331
From: Ocala FL
OP: How is your wheel alignment? If the steering wheel is off center while driving the car down a straight road this code can be set. If the car pulls one way or the other this code can be set. Once the offset of the steering wheel exceeds a certain angle from 0 (0 being straight ahead) the EBCM can interpret that turn as an error in the steering sensor. You may need nothing more than a good wheel alignment.
Bill
Bill