Code result
C0220
ABS Valve Block Supply Voltage
Moderate severity
What it means
Supply voltage to the ABS valve block is out of range, disabling all valve control.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Battery undervoltage
highOne of the most commonly reported causes for this code — check this first.
Ground point corroded
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose C0220 freeNo credit card required