⚠️ Safety Alert: Driving with C0110 disables ABS functionality. Avoid emergency braking until repaired.
🔍 Understanding Code C0110
OBD-II Code: C0110
Definition: ABS Pump Motor Control Circuit Malfunction
System Impact: Anti-lock Brakes (ABS), Traction Control
This code appears when the ABS module detects electrical faults in the pump motor's control circuit, preventing proper brake pressure modulation during wheel slip events.
Pro Tip: Many C0110 code after battery replacement cases are caused by voltage spikes damaging control circuits.
🚨 Common Symptoms
- ABS and traction control warning lights on
- Hard brake pedal (no power assist in some vehicles)
- Grinding noise from ABS pump area
- Failed ABS self-test during startup
🛠️ Diagnostic Procedure
Tools Needed:
- OBD-II scanner with ABS capability
- Digital multimeter
- Test light or power probe
- Vehicle service manual
Step-by-Step Testing:
Check Live Data:
- Monitor ABS pump motor resistance specs (typically 0.5-5Ω)
- Compare with other wheel speed sensors
Inspect Wiring:
- Look for chafed wires near suspension components
- Test continuity between pump and ABS module
Test Control Signals:
- Check for 12V at pump connector during ABS activation
- Verify ground circuit integrity
🔧 Repair Solutions
Most Common Fixes:
Wiring Repair:
- Splice damaged wires with heat-shrink tubing
- Replace corroded connectors
Pump Motor Replacement:
- Required if resistance tests fail
- Some vehicles require complete ABS module replacement
📊 Cost Estimates
| Repair | DIY Cost | Shop Cost |
|---|---|---|
| Wiring Repair | $20-$50 | $100-$300 |
| Pump Motor Replacement | $150-$400 | $500-$1,200 |
| ABS Module Replacement | $300-$800 | $800-$2,000 |
Recommended Diagnostic Tool
iCarsoft CR MAX - Tests ABS pump motor control circuits and activates components for accurate C0110 diagnosis.
View Product Details
🛡️ Prevention Tips
- Inspect ABS wiring during brake service
- Disconnect battery before electrical work
- Use OEM-quality replacement parts
🔗 Related Resources
-
Top 10 ABS Fault Codes
C0035 Code: Left Front Wheel Speed Sensor Circuit - Complete ABS Repair Guide
- C0040 Code: Right Front Wheel Speed Sensor Circuit - Complete ABS Repair Guide
- C0050 Code: ABS Pump Motor Circuit Repair
💬 Need Professional Help?
Our certified technicians can provide vehicle-specific guidance for your C0110 repair:
Contact Our Support Team：service@icarsoft-us.com
