ABS Pressure Sensor Circuit
The C0019 code means the vehicle's onboard diagnostic system has detected: ABS Pressure Sensor Circuit. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $600 (parts and labor)
Basic scanners cannot read ABS codes. BlueDriver reads all systems including ABS, SRS, and transmission through your phone.
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Basic scanners cannot read ABS codes. This one reads all four systems so you know exactly which sensor failed.
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Common Symptoms
- ABS warning light on
- Traction control disabled
- Incorrect brake pressure readings on scan tool
- ABS activates unexpectedly
Probable Causes (Ranked by Likelihood)
- Failed ABS pressure sensor Very High
- Damaged pressure sensor wiring High
- Contaminated or leaking sensor port Moderate
- ABS control module input circuit failure Low
Step-by-Step Diagnostic Procedure
-
Read ABS pressure sensor data with scan tool
-
Compare pressure readings at rest and during braking
-
Check pressure sensor wiring and connector
-
Inspect sensor port for leaks or contamination
Frequently Asked Questions
What does the ABS pressure sensor do?
It monitors hydraulic brake pressure to help the ABS module determine how much pressure to apply or release.
Can a faulty pressure sensor cause random ABS activation?
Yes, incorrect pressure readings can cause the ABS module to activate unnecessarily.
Is the pressure sensor inside the ABS unit?
In most vehicles, it is integrated into or mounted directly on the ABS hydraulic unit.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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