Pinpoint Test Am: Brake Pressure Sensor Faults
Normal Operation and Fault Conditions
The ABS module monitors various inputs and compares the values to what should be expected. If the values received are out of range or not what should be expected, the ABS module sets a DTC.
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS C0044:49 | Brake Pressure Sensor "A": Internal Electronic Failure | Sets when the ABS module detects an internal fault with the EBB unit. |
| ABS C0044:64 | Brake Pressure Sensor "A": Signal Plausibility Failure | Sets when the ABS module detects a fault with the brake fluid pressure. |
| ABS C0044:8F | Brake Pressure Sensor "A": Erratic | Sets when the ABS module detects an internal fault with the EBB unit. |
| ABS C0044:51 | Brake Pressure Sensor "A": Not Programmed | Sets when the ABS module detects a software fault with the EBB unit. |
Possible Sources
- Incorrect sensor input
- Air trapped in the hydraulic system
- EBB unit (HCU and ABS module assembly)