C0022
Brake Booster Solenoid
C0022 is an OBD-II diagnostic trouble code meaning: Brake Booster Solenoid. Common causes: open or short circuit in solenoid circuit, brake booster solenoid malfunction. Estimated repair cost: $56–167.
Symptoms
- Hard brake pedal
- Increased brake pedal travel
- The brake system fault light comes on
- Reduced braking performance
Causes
- Open or short circuit in solenoid circuit
- Brake booster solenoid malfunction
- Problems with the control unit
- Wiring harness damage
How to Fix
- Check the resistance of the brake booster solenoid
- Inspect the wiring harness for damage
- Check voltage at solenoid connector
- Replace solenoid if necessary
- Reset the error and check the system operation
Related codes
Error C0022 by Vehicle Brand
FAQ
What does the C0022 code mean?
C0022 is an OBD-II diagnostic trouble code that indicates: Brake Booster Solenoid
What causes a C0022 error code?
The most common causes of C0022 include: Open or short circuit in solenoid circuit; Brake booster solenoid malfunction; Problems with the control unit; Wiring harness damage.
How do I fix a C0022 diagnostic trouble code?
To fix C0022: Check the resistance of the brake booster solenoid. Inspect the wiring harness for damage. Check voltage at solenoid connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0022?
Limited driving only, diagnose soon
How much does it cost to fix C0022?
The estimated repair cost for C0022 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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