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.
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HOMESERVICE MANUALSJEEP2024GLADIATOR NIGHTHAWK, PART TIME T/CASE CONTROL, AUTOMATIC TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEM3.6L (GPEC 2A) - DTCS U0001 TO U0155DTC TROUBLESHOOTINGU0129-LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE 1SET CONDITION
2024 Jeep Gladiator Nighthawk, Part Time T/Case Control, Automatic Trans
Set Condition
2024 Jeep Gladiator Nighthawk, Part Time T/Case Control, Automatic TransSECTION Set Condition
- C053D - The PCM determines that the Master Cylinder Pressure Sensor signal is irrational.
- C10F5 - The PCM determines that the Brake Torque signal is irrational.
- P057B - The PCM determines that the Brake Pedal Position Sensor signal is irrational.
- U0121 - The PCM does not receive the Brake Pedal Position Sensor signal.
- U0129 - The PCM does not receive the Master Cylinder Pressure Sensor signal.
- U0418 - The PCM receives an SNA message indicating that the has detected a fault in the Master Cylinder Pressure Sensor signal.
- U11BF - The PCM receives an SNA message indicating that the has detected a fault in the Brake Pedal Position Sensor signal.
- (C0501, C0507, C050D, C0513) Wheel Speed Signal Rationality Faults - When at a stop, one WSS signal is showing vehicles speed output and the other three WSS signals are reading 0 OR When the difference between one WSS signal compared to the other three WSS signals is more than 11 MPH, for 30 seconds.
- (U1409, U140A, U140B, U140C, U1412, U1417, U1418) Implausible Wheel Speed and Distance Signal Faults - These faults will typically set when the BSCM detects a fault with one of the WSS signals. The BSCM will send an SNA or error flag against the sensor.
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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.