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Home >> Chrysler >> 2025 >> Voyager >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Antilock Brake System (Abs) (Continental) - DTCS C0020-01 To C0037-62) >> DTC Troubleshooting >> C0021-02 Brake Booster - General Signal Failure >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
ENGINE STALLED WHILE ROLLING IN NEUTRAL
PINCHED, CUT OR OPEN VACUUM SUPPLY LINE
BRAKE BOOSTER
VACUUM PRESSURE SENSOR

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .

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