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ABS and Traction control lights on. Code C0146

Kagarb07

New member
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0
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I have a 2006 Grand Prix GT with ABS an Traction control lights on the dashboard. Scanner gives a code of C0146. I removed my EBCM and sent it for repair. It has been reinstalled and the lights are still on the dash and DIC. I have checked the fuses and no fuses are blown. Any suggestions on where to go next with this to find the problem. I'm having zero luck finding any information out there.
 

davidawg

Member
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0
6
pittsfield
Had same problem with my 2008 it was a bad wire right front side about 2 feet up from wheel bearing replaced the the plug to bearing and about 3 feet of wiring got the wiring harness from Parts Geek
 
G

G-21094

Had same problem with my 2008 it was a bad wire right front side about 2 feet up from wheel bearing replaced the the plug to bearing and about 3 feet of wiring got the wiring harness from Parts Geek
Thanks for the response. Guess I will pull my wheels off and start looking first bad wire next. Hopefully it is that simple. Thanks again
 

melsg5

Staff member
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The code is specific to the left side of the vehicle. It is not a wheel sensor code as mentioned in post #2 above. It is a code referring to a solenoid inside the EBCM. Read the link below.
When you sent it for repair did you tell them what code you have?
Did you contact the repair service and tell them you still have the code?
______________________________
 

Kagarb07

New member
2
0
1
The code is specific to the left side of the vehicle. It is not a wheel sensor code as mentioned in post #2 above. It is a code referring to a solenoid inside the EBCM. Read the link below.
When you sent it for repair did you tell them what code you have?
Did you contact the repair service and tell them you still have the code?

I did contact Cheap ABS and they said the solenoid is fine and my EBCM is good. Are you saying I should send it to another place and have it fixed again? I read that link several times and still have the problem. The code is a circuit malfunction. Any other ideas?
 

melsg5

Staff member
SUSTAINING MEMBER
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According to below the only thing to set this code on is a internal problem in the EBCM. So how does Cheap ABS explain that?

DTC C0141, C0146, C0151 & C0156: TCS SOLENOID CIRCUIT
MALFUNCTION (GRAND PRIX & INTRIGUE)
Circuit Description
DTC definitions:
* DTC C0141 – Left TCS solenoid No. 1 circuit malfunction.
* DTC C0146 – Left TCS solenoid No. 2 circuit malfunction.
* DTC C0151 – Right TCS solenoid No. 1 circuit malfunction.
* DTC C0156 – Right TCS solenoid No. 2 circuit malfunction.
Isolation and prime valve solenoid circuits are supplied with
battery power when ignition is on. EBCM controls valve functions by
grounding circuit when necessary.
DTC sets when EBCM detects an open in solenoid coil or
circuit, short to ground in solenoid coil or circuit or short to
voltage in solenoid coil or circuit.
Diagnosis
1) Perform DIAGNOSTIC SYSTEM CHECK under DIAGNOSIS & TESTING.
Go to next step.
2) Using scan tool, clear DTC. Remove scan tool from DLC.
Carefully drive vehicle above 8 MPH for several minutes. Turn ignition
off. Install scan tool. Turn ignition switch on, engine off. Using
scan tool in DIAGNOSTIC TROUBLE CODES mode, check for DTCs. If DTC
resets, go to next step. If DTC does not reset, see DIAGNOSTIC AIDS.
3) Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE under
REMOVAL & INSTALLATION. After repairs, go to next step.
4) Using scan tool, clear DTCs. Operate vehicle. If DTC does
not reset, system is okay.
Diagnostic Aids
Solenoid valve circuit and solenoid coil are internal to
EBCM. No part of solenoid circuit is diagnosable external to EBCM. DTC
sets when there is a malfunction in solenoid circuit internal to EBCM
only.
 
G

G-611338

According to below the only thing to set this code on is a internal problem in the EBCM. So how does Cheap ABS explain that?

DTC C0141, C0146, C0151 & C0156: TCS SOLENOID CIRCUIT
MALFUNCTION (GRAND PRIX & INTRIGUE)
Circuit Description
DTC definitions:
* DTC C0141 – Left TCS solenoid No. 1 circuit malfunction.
* DTC C0146 – Left TCS solenoid No. 2 circuit malfunction.
* DTC C0151 – Right TCS solenoid No. 1 circuit malfunction.
* DTC C0156 – Right TCS solenoid No. 2 circuit malfunction.
Isolation and prime valve solenoid circuits are supplied with
battery power when ignition is on. EBCM controls valve functions by
grounding circuit when necessary.
DTC sets when EBCM detects an open in solenoid coil or
circuit, short to ground in solenoid coil or circuit or short to
voltage in solenoid coil or circuit.
Diagnosis
1) Perform DIAGNOSTIC SYSTEM CHECK under DIAGNOSIS & TESTING.
Go to next step.
2) Using scan tool, clear DTC. Remove scan tool from DLC.
Carefully drive vehicle above 8 MPH for several minutes. Turn ignition
off. Install scan tool. Turn ignition switch on, engine off. Using
scan tool in DIAGNOSTIC TROUBLE CODES mode, check for DTCs. If DTC
resets, go to next step. If DTC does not reset, see DIAGNOSTIC AIDS.
3) Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE under
REMOVAL & INSTALLATION. After repairs, go to next step.
4) Using scan tool, clear DTCs. Operate vehicle. If DTC does
not reset, system is okay.
Diagnostic Aids
Solenoid valve circuit and solenoid coil are internal to
EBCM. No part of solenoid circuit is diagnosable external to EBCM. DTC
sets when there is a malfunction in solenoid circuit internal to EBCM
only.
They didn't explain it. He seemed kinda bothered that I even asked him about it actually. He just said that solenoid was fine and said he would refund my money since it wasn't fixed. Now I'm curious if it was even looked at. Maybe I should take it off again and send it to a different company.
 

melsg5

Staff member
SUSTAINING MEMBER
19,718
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48
I would seriously considered that option of finding someone else to check it.
______________________________
 
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