<!-- from fixya rte -->Acadia 2009 code C0561 what does it mean? - 2007 GMC Acadia SLE

You need to identify what each code means and again you could have other codes popping up because a sensor could be depending on another faulty sensor

C0561 traction control Ricks Free Auto Repair Advice

traction control light on . DTC'S - diagnostic trouble codes are stored in ABS control module pointing to the malfunction . Take to a qualified repair shop or to auto part store that can pull these code. DTC C0242 00: Engine Control Module (ECM) Indicated TCS Malfunction
DTC P0856: Traction Control Torque Request Circuit
The electronic brake control module (EBCM) and the engine control module (ECM) simultaneously control the traction control. The EBCM sends a serial data message to the ECM requesting torque reduction. When certain ECM DTCs are set, the ECM will not be able to perform the torque reduction for traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.
DTC C0561 4B: System Disabled Information Stored Calibration Not Learned
DTC C0561 54: System Disabled Information Stored Temparature High
DTC C0561 59: System Disabled Information Stored Component Protection Time Out
DTC C0561 71: System Disabled Information Stored Invalid Serial Data Received
DTC C0561 72: System Disabled Information Stored Alive Counter Incorrect
DTC C0561 74: System Disabled Information Stored Value of Signal Protection Calculation Incorrect
DTC C0561 75: System Disabled Information Stored Signal Above Allowable Range

Traction Control Off Indicator
The IPC illuminates the traction off indicator when the following occurs.
• The EBCM disables engine torque reduction due to a malfunction and sends a serial data message to the IPC requesting illumination.
• The driver manually disables VSES and engine torque reduction by pressing the traction control switch. The EBCM sends a serial data message to the IPC requesting illumination.

co561 System Voltage unstable,, po751 Shift solenoid A CKT
performance or stuck Off,, po700 Trans Control Sys. Malfunction
these are OBD codes, hope that helps....

I would go to what we use to call a junk yard.

Try this YouTube video:-
2009 GMC Acadia spark plug replacement

DTC C0561
The electronic brake control module (EBCM) disables the traction control when other electronic control modules set DTCs for components that effect the operation of the traction control system.
DTC C0561 System Disabled Information Stored
Conditions for Setting the DTC
The powertrain control module (PCM) or body control module (BCM) diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the EBCM indicating that torque reduction is not allowed. The PCM or BCM will typically set a DTC and the EBCM will set this DTC.
This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, refer to DTC Symptom Description .

DTC Symptom

DTC Symptom Descriptor
71
Invalid Serial Data Received
72
Alive Counter Incorrect/Not Updated

Diagnostic Aids
This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/traction control system (TCS).
© 2015 General Motors Corporation. All rights reserved.
This is something you'll need to take to the dealer !

HAVE VECHICLE CODE SCANNED.YOU HAVE PROBLEM THE THE EMISSIONS AND ENGINE EVAPORATIVE CONTROL SYSTEMS.