Anyone know of a way to pull abs codes on a C6? I know in a C5 you can pull the codes from the dic, but that method does not work on my C6. Does anyone know of an inexpensive ODBII reader that can do it without buying something like a TEk2?


I am having problems, after driving my car, usually under heavy accerlation, the ABS, Traction Control, and BRAKE light goes on.

 

There are several inexpensive scanners available. You need to make sure they are CAN capable. Actron sells several versions. I think one is available at Walmart. The one I have is an Actron 3130 (if I remember correctly) came from Amazon. I paid under $200 for it. I live in Chandler if you want to stop by I can read the codes.

Tom

 

Thanks for the offer, I actually found one at autozone. Hopefully this will help me diagnose the issue. Although it wasn't the cheapest, $299

 

Alright I got codes:

C0281: Dynamic Rear Proportioning Performance
C0900: Device 1 Volt Hi
C0050 Right Rear Wheel Speed Sensor Circuit
C0045 Left Rear Wheel Speed Sensor Circuit
C0040 Right Front Wheel Speed Sensor Circuit
C0035 Right Front Wheel Speed Sensor Circuit

i don't suppose anyone has any idea what it could be?

 

Understand this is a long shot, but I have all the same codes. What was the solution? I am wondering if it is the battery.

 

These codes are all related to the Electronic Brake Control Module (EBCM). And I agree that this may be a long-shot, but the suggestion to clear the codes & disconnect/reconnect your battery is a good start for unusual electrical situations with the C6 (and be sure you have a strong battery to start). If they return, then a visit to a shop that has experience with EBCM problems would be in order.

Keep us informed when you find the solution & good luck.

GD

 

Codes aren't stored, and clear once the ignition is off. I have cleared and power cycled as you suggested. I'm thinking this is going to be a gremlin hunt.

 

If you haven't already done so, you should disconnect the battery then pull the electrical panel cover off on the passenger floorboard and open the blue connectors to check the pins, clean and reassemble to ensure good connections. These are known to cause hard-to-diagnose electrical problems. Obviously check all under hood fuses and ground connections as well. Also, locate the EBCM and pull & clean that connector. I believe it is located on the driver-side under the power steering reservoir between the engine & radiator.

GD

 

Appreciate the support and tips!

 

Surely like you said there are some hard to diagnose problems.

============1==============
C0035
Raw code: 4035
ECU: ABS/EBCM/ESC
Status: History DTC
OBDII: Right Front Wheel Speed Sensor Supply
Chevrolet: Left wheel speed sensor circuit malfunction; Left Front Wheel Speed Sensor Circuit Low Voltage/Open; Left Front Wheel Speed Sensor Circuit Signal Erratic; Left Front Wheel Speed Sensor Circuit Low Signal Amplitude; Left Front Wheel Speed Sensor Circuit Not Plausible
Additional General Electrical Failures
============2==============
C0040
Raw code: 4040
ECU: ABS/EBCM/ESC
Status: History DTC
OBDII: Brake Pedal Switch "A"
Chevrolet: Right wheel speed sensor circuit malfunction; Right Front Wheel Speed Sensor Circuit Low Voltage/Open; Right Front Wheel Speed Sensor Circuit Signal Erratic; Right Front Wheel Speed Sensor Circuit Low Signal Amplitude; Right Front Wheel Speed Sensor Circuit Not Plausible
Additional General Electrical Failures
============3==============
C0045
Raw code: 4045
ECU: ABS/EBCM/ESC
Status: History DTC
OBDII: Brake Pressure Sensor "B"
Chevrolet: Left Rear wheel speed sensor circuit malfunction; Left Rear Wheel Speed Sensor Circuit Low Voltage/Open; Left Rear Wheel Speed Sensor Circuit Signal Erratic; Left Rear Wheel Speed Sensor Circuit Low Signal Amplitude; Left Rear Wheel Speed Sensor Circuit Not Plausible
General Electrical Failures
============4==============
C0050
Raw code: 4050
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Right Rear wheel speed sensor circuit malfunction; Right Rear Wheel Speed Sensor Circuit Low Voltage/Open; Right Rear Wheel Speed Sensor Circuit Signal Erratic; Right Rear Wheel Speed Sensor Circuit Low Signal Amplitude; Right Rear Wheel Speed Sensor Circuit Not Plausible
General Electrical Failures
============5==============
C0899
Raw code: 4899
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Device #1 voltage low
General Electrical Failures
============6==============
C0900
Raw code: 4900
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Device #1 voltage high
General Electrical Failures
============7==============
C0281
Raw code: 4281
ECU: ABS/EBCM/ESC
Status: History DTC
General Electrical Failures
============8==============
C0161
Raw code: 4161
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: ABS/TCS brake switch circuit malfunction; ABS Brake Switch Circuit Not Plausible; ABS Brake Switch Circuit Invalid Data
Additional General Electrical Failures
============9==============
C0137
Raw code: 4137
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Base brake system pressure circuit range/performance
Additional General Electrical Failures
============10==============
U2100
Raw code: E100
ECU: ABS/EBCM/ESC
Status: History DTC
OBDII: CAN-BUS Communication Malfunction
Chevrolet: Controller Area Network (CAN) Bus Communication
General Electrical Failures
============11==============
C0550
Raw code: 4550
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Electronic Control Unit Malfunction; Electronic Control Unit ROM Malfunction; Electronic Control Unit Internal Malfunction; Electronic Control Unit EEPROM Incorrect Programming
General Electrical Failures
============12==============
C0196
Raw code: 4196
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Yaw Rate Circuit Malfunction; Yaw Rate Signal Not Plausible; Yaw Rate Signal Invalid Data
General Electrical Failures
============13==============
C0253
Raw code: 4253
ECU: ABS/EBCM/ESC
Status: History DTC
Chevrolet: Centering fault
General Electrical Failures

 

Screaming corrosion in the EBCM connector pins, that pulling and cleaning the connector and EBCM pins may solve.

As for rear wheel sensor, they go through the C184 connector that is behind the battery on the passenger fender wall (same with pull, clean and reconnector to solve corrosion problems.

 

G105 ground point conductivity ?
https://www.ls2.com/forums/showthrea...rvette-Grounds

 

All,

If you disconnect/reconnect the car battery, do not forget to reindex both windows: