Possible Causes
The (P057B, P057C, P057D) BPP Sensor faults can set for any of the following:
| POSSIBLE CAUSES |
|---|
| BPP SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND |
| BPP FUSED B+ CIRCUIT OPEN OR SHORTED TO GROUND |
| BPP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE (CIRCUIT HIGH) |
| BPP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND (CIRCUIT LOW) |
| BPP SENSOR SIGNAL CIRCUIT OPEN/HIGH RESISTANCE (CIRCUIT LOW) |
| BPP RETURN CIRCUIT OPEN/HIGH RESISTANCE |
| FAULTY BRAKE PEDAL POSITION SENSOR |
| FAULTY ANT-LOCK BRAKE SYSTEM (ABS) MODULE |
The (C053D, C10F5, U0418) performance and implausible/lost message faults can set for any of the following:
| POSSIBLE CAUSES |
|---|
| BRAKE FLUID CONTAMINATION |
| PINCHED OR BENT BRAKE LINE |
| FAULTY HYDRAULIC ASSEMBLY |
| FAULTY ANTI-LOCK BRAKE SYSTEM MODULE (ABS) |
The (U0121, U0129) Loss of Communication faults can set for any of the following:
| POSSIBLE CAUSES |
|---|
| BATTERY OR IGNITION SUPPLY TO ABS OPEN OR SHORTED TO GROUND |
| ABS GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| ABS CAN BUS CIRCUITS SHORTED TO VOLTAGE |
| ABS CAN BUS CIRCUITS SHORTED TO GROUND |
| ABS CAN BUS CIRCUITS OPEN/HIGH RESISTANCE |
| FAULTY ANTI-LOCK BRAKE SYSTEM (ABS) MODULE |
The Wheel Speed Sensor faults can set for any of the following:
| POSSIBLE CAUSES |
|---|
| SNA OR ERROR MESSAGE FROM ABS MODULE |
| WSS SIGNAL CIRCUITS SHORTED TO VOLTAGE |
| WSS SIGNAL CIRCUITS SHORTED TO GROUND |
| WSS SIGNAL CIRCUITS OPEN/HIGH RESISTANCE |
| WSS GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| DAMAGED TONE WHEEL |
| FAULTY WHEEL SPEED SENSOR |
| FAULTY ANTI-LOCK BRAKE SYSTEM (ABS) MODULE |