C0020ABS Pump Motor Circuit
The ABS control module detects an electrical fault in the pump motor circuit. Without a working pump, the system cannot build hydraulic pressure for ABS or stability control interventions and disables those functions.
Can I keep driving? Yes
You can keep driving normally. Schedule a check soon so emissions and performance are not affected.
Sistema Afectado
Chasis · ABS, frenos y suspensión
Afecta el chasis: sensores ABS, control de tracción, frenos o suspensión.
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Symptoms You Will Notice
What you may observe when this code appears
- ABS warning light on ESC/stability control deactivated Possible reduced brake assist Speedometer may behave erratically
Possible Causes
The components or conditions that trigger this code
- 1Pump motor seized after long inactivity Pump motor relay welded or open Power supply connection corroded
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: hard. Estimated time: 1.5-5 hours. Estimated cost: €300-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
ABS / brake sensors
* Diagnosis only: $50–$150
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