OBD-II code · Chassis
C0220 ABS Valve Block Supply Voltage
Supply voltage to the ABS valve block is out of range, disabling all valve control.
Is it safe to drive with C0220?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBattery undervoltage
- PossibleGround point corroded
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- ABS Hydraulic Block, ABS Control Module, Power Supply Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.