C0561 on Chevrolet
System Disabled / Invalid Serial Data Received
C0561 on Chevrolet vehicles indicates system disabled / invalid serial data received. Au7o has documented this code across 1 Chevrolet model — most commonly on Express. This code sets when the ABS/electronic brake control module disables itself because it received invalid, missing, or implausible serial data over the vehicle communication bus. Rather than a failed brake part, it usually means the module can't trust the data it's getting from another module (or the bus itself is faulty), so it shuts down ABS and stability/traction control as a precaution. Common subcodes include -71 (invalid serial data received) and -72 (alive counter incorrect, indicating a bus or sending-module problem). The driver typically sees ABS, traction, and 'Service Stability/StabiliTrak' messages while base braking still works. Typical repair costs on Chevrolet range from $150 to $400, depending on the specific model and root cause.
Common Causes of C0561
- •Communication (CAN/serial data) bus fault or corrupted data
- •Failing module on the bus sending bad data
- •Wiring or connector problems on the data lines
- •Corrosion at module connectors
- •Low battery voltage or charging problems
- •Body control module or other module fault
- •Software/calibration mismatch between modules
C0561 on Chevrolet by Model
Chevrolet Express(1 issue)
- StabiliTrak and ABS False Activation from Wheel Speed Sensors2008-2025
The wheel speed sensors and their wiring are prone to failure due to the harsh commercial-use environment, causing the StabiliTrak and ABS systems to falsely activate during normal driving. The ABS unexpectedly engages during normal braking, extending stopping distances. The tone rings on the hub bearings also corrode.
Looking for C0561 on a different make?
View C0561 across all makes →Frequently Asked Questions
What does C0561 mean on Chevrolet?▼
C0561 stands for "System Disabled / Invalid Serial Data Received." This code sets when the ABS/electronic brake control module disables itself because it received invalid, missing, or implausible serial data over the vehicle communication bus. Rather than a failed brake part, it usually means the module can't trust the data it's getting from another module (or the bus itself is faulty), so it shuts down ABS and stability/traction control as a precaution. Common subcodes include -71 (invalid serial data received) and -72 (alive counter incorrect, indicating a bus or sending-module problem). The driver typically sees ABS, traction, and 'Service Stability/StabiliTrak' messages while base braking still works. On Chevrolet specifically, this code is documented across 1 model.
What causes C0561 on Chevrolet vehicles?▼
Common causes on Chevrolet: Communication (CAN/serial data) bus fault or corrupted data, Failing module on the bus sending bad data, Wiring or connector problems on the data lines, Corrosion at module connectors, Low battery voltage or charging problems. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0561 on a Chevrolet?▼
Repair costs on Chevrolet range from $150 to $400, depending on the specific model and root cause.
Which Chevrolet models have C0561 documented?▼
Au7o has documented C0561 on 1 Chevrolet model: Express.