ABS Pressure Sensor Circuit High
The C0022 code means the vehicle's onboard diagnostic system has detected: ABS Pressure Sensor Circuit High. This is a moderate 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
- Hard brake pedal
- ABS does not activate when expected
- Traction control disabled
Probable Causes (Ranked by Likelihood)
- Failed ABS pressure sensor reading high Very High
- Restricted ABS hydraulic line High
- Sticking ABS valve holding pressure Moderate
- ABS module input circuit malfunction Low
Step-by-Step Diagnostic Procedure
-
Read ABS pressure sensor values with scan tool
-
Compare readings to specifications during braking
-
Check for restricted hydraulic lines in ABS system
-
Inspect ABS valves for stuck-closed conditions
Frequently Asked Questions
What causes a high pressure reading?
A faulty sensor, restricted line, stuck valve, or ABS module input circuit issue.
Will high ABS pressure prevent ABS from working?
Yes, the module may not activate ABS if it thinks pressure is already high.
Can a sticking valve cause this?
Yes, a valve stuck closed can trap pressure, causing artificially high readings.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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