What Does C0267 Mean?
This code indicates the ABS/ESP control module has detected an electrical fault in the hydraulic pump motor circuit used for brake pressure modulation. The fault could be an open circuit (broken wire or connection) or a short circuit (wire grounded or shorted to power). This pump is critical for ABS, traction control, and stability control operation.
Safety Warning
Vehicle is unsafe to drive as ABS, traction control, and stability control will be disabled, significantly increasing stopping distances and risk of loss of control in emergency maneuvers or slippery conditions. Immediate repair required before operating vehicle.
Common Causes
40%
Damaged wiring harness or corroded connectors between ABS module and pump motor, often from road debris, moisture intrusion, or physical damage
30%
Failed ABS hydraulic pump motor due to worn brushes, internal short, or mechanical seizure
20%
Faulty ABS control module with internal driver circuit failure preventing proper pump operation
10%
Blown fuse or faulty relay supplying power to the ABS pump motor circuit
Diagnostic Steps
1
Step 1: Perform visual inspection of ABS pump motor assembly and all wiring harnesses for obvious damage, corrosion, water intrusion, or disconnected connectors. Check all related fuses and relays in the power distribution center.
2
Step 2: Using a digital multimeter, check for battery voltage at the pump motor connector with ignition on and ABS module commanding pump activation. Expected reading: 12-14V during activation, 0V at rest.
3
Step 3: With pump motor connector disconnected, measure resistance across pump motor terminals. Expected reading: typically 1-5 ohms for functional motor. Infinite resistance indicates open motor windings, near-zero indicates short.
4
Step 4: Check for continuity and proper resistance in all wiring between ABS module and pump motor connector. Look for shorts to ground or power by measuring resistance between each circuit wire and vehicle ground/battery positive with harness disconnected at both ends.
5
Step 5: If wiring and motor test good, connect pump motor directly to battery power briefly (2-3 seconds maximum) to verify motor operation. Motor should activate and draw 10-25 amps typically.
6
Step 6: If all components test good, suspect ABS module internal failure. Verify proper ground connections at module, then consider module replacement and programming if all other tests pass.
Estimated Repair Cost
$150 - $1,800
Parts + labor, varies by vehicle and location
This code indicates the ABS/ESP control module has detected an electrical fault in the hydraulic pump motor circuit used for brake pressure modulation. The fault could be an open circuit (broken wire or connection) or a short circuit (wire grounded or shorted to power). This pump is critical for ABS...
The most common cause of C0267 (Pump Motor Circuit Open/Shorted) is: Damaged wiring harness or corroded connectors between ABS module and pump motor, often from road debris, moisture intrusion, or physical damage
Typical repair costs for C0267 range from $150 to $1,800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle is unsafe to drive as ABS, traction control, and stability control will be disabled, significantly increasing stopping distances and risk of loss of control in emergency maneuvers or slippery conditions. Immediate repair required before operating vehicle.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C0267 to identify the root cause.
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Quick Info
Category
Chassis
System
Anti-lock Braking System (ABS) / Electronic Stability Control
Difficulty
Type
Generic (SAE)
Recommended Tools
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