Chevrolet Code C0561 71 is a diagnostic code encountered when the Electronic Brake Control Module (EBCM) fails to receive a valid serial data message/signal from another module. This causes the module to deactivate the antilock brake system, traction control, and vehicle stability enhancement system. It can occur for a variety of reasons, such as DTC C0561 4B, which detects if one or more of the module learning steps were not performed or failed during component replacement, or DTC C0561 54, which sees an over-temperature condition with one of the twelve solenoids due to an extended ABS, traction control, and vehicle stability enhancement system event lasting more than 45 seconds.
Additionally, DTC C0561 59 detects if the ABS motor is continuously ON for over 60 seconds during the same ignition cycle due to pedal pumping, poor service bleed, or a hydraulic leak. The failure type associated with this code is an Actuator Stuck, which is used for failures where the control module does not detect any motion in response to energizing a motor, solenoid, relay, etc. As Chevrolet Code C0561 71 is a complex issue, it requires an in-depth system analysis to diagnose and fix the problem.
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Causes and Solutions of Chevrolet Code C0561 71
| Cause | Solution |
|---|---|
| DTC C0561 4B | Replace the component or reprogram the ECU. |
| DTC C0561 54 | Perform diagnostic tests to identify the root cause and replace the necessary components. |
| DTC C0561 59 | Perform a service bleed, check the pedal pumping, or identify the hydraulic leak. |
| DTC C0561 71, 72, 74, and 75 | Identify the source of the invalid serial data message/signal and replace the components if necessary. |
DTC C0561 4B
Chevrolet Code C0561 4B is caused when one or more of the module learning steps have not been performed or failed during component replacement. To fix this issue, the component must either be replaced, or the ECU must be reprogrammed.
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DTC C0561 54
Chevrolet Code C0561 54 is caused when an over-temperature condition is detected with one of the twelve solenoids due to an extended ABS, traction control, and vehicle stability enhancement system event lasting more than 45 seconds. To fix this issue, diagnostic tests need to be performed to identify the root cause and replace the components if necessary.
DTC C0561 59
Chevrolet Code C0561 59 is caused when the ABS motor is continuously ON for greater than 60 seconds during the same ignition cycle due to pedal pumping, poor service bleed, or a hydraulic leak. To fix this issue, a service bleed needs to be performed, the pedal pumping needs to be checked, or the hydraulic leak needs to be identified.
DTC C0561 71, 72, 74, and 75
Chevrolet codes C0561 71, 72, 74, and 75 are caused when the Electronic Brake Control Module (EBCM) fails to receive a valid serial data message/signal from another module. To fix this issue, the source of the invalid serial data message/signal must be identified, and the components must be replaced if necessary.
Conclusion
Chevrolet Code C0561 71 is a complex issue requiring an in-depth system analysis to diagnose and fix it. The cause of the issue can vary, with the most common reasons being DTC C0561 4B, 54, 59, 71, 72, 74, and 75. The solutions to these issues range from replacing components, reprogramming the ECU, performing a service bleed, checking the pedal pumping, or identifying the hydraulic leak. If you are experiencing Chevrolet Code C0561 71, it is recommended that you take your vehicle to an experienced mechanic to diagnose and fix the issue.
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