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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (5.7L - DTCS U0155 To U1494) >> DTC Troubleshooting >> U11BC-Lost Brake Switch Message >> Possible Causes

Possible Causes

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Possible Causes
BRAKE PEDAL POSITION SENSOR WIRING ISSUES
BRAKE PEDAL POSITION (BPP) SENSOR
ANTI-LOCK BRAKE MODULE (ABS)
POWERTRAIN CONTROL MODULE (PCM)

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