Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2013 Subaru TribecaFACTORY OEM SERVICE PROCEDURE
Brake VACCUM Control System DTCS
BRAKE VACCUM CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Reference |
|---|---|---|
| 11 | Brake vacuum sensor output error | < Ref. to DTC 11 SENSOR OUTPUT OUT OF RANGE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| 12 | Brake booster relative pressure comparison error | < Ref. to DTC 12 COMPARE ERROR IN OTHER SENSOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| 13 | Brake vacuum sensor stuck error | < Ref. to DTC 13 PRESSURE SENSOR OUTPUT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| 21 | Unmatched drive of brake vacuum pump relay and brake vacuum pump | < Ref. to DTC 21 DISCREPANCY IN RELAYS (ON) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| 22 | Unmatched drive of brake vacuum pump relay and brake vacuum pump | < Ref. to DTC 22 DISCREPANCY IN RELAYS (OFF) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
| 23 | Continuous drive error of brake vacuum pump | < Ref. to DTC 23 PUMP CONTINUOUS WORK , Diagnostic Procedure with Diagnostic Trouble Code (DTC). > |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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