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Home >> Jeep >> 2023 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 27 (5.7L - DTCS U1199 To U1817) >> DTC Troubleshooting >> U120C-Lost Brake Booster Signal >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
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  . 

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