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Home >> Chrysler >> 2021 >> Voyager LXi, Gas >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS U0429 To U1504 >> DTC Troubleshooting >> U120C-Lost Brake Booster Signal >> Possible Causes

Possible Causes

Possible Causes
BRAKE BOOSTER PRESSURE SENSOR WIRING ISSUES
BRAKE BOOSTER PRESSURE SENSOR
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE

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