Brake System DTCS
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Perform Test |
|---|---|---|---|
| B1342 |
NOTE:
Disconnecting and connecting the 12V battery can cause DTC B1342 to erroneously set. ECU is Faulted |
ABS Module | DISCONNECT and CONNECT the 12 volt battery negative terminal. CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| B2900 | VIN Mismatch | ABS Module | VERIFY that the module has the correct as-built data. REFER to MODULE CONFIGURATION article. |
| C1187 | Brake Fluid Level Sensor Input Open Circuit | ABS Module | Go to Pinpoint Test B . |
| C1188 | Brake Fluid Level Sensor Input Short Circuit to Battery | ABS Module | Go to Pinpoint Test B . |
| C1189 | Brake Fluid Level Sensor Input Short Circuit to Ground | ABS Module | Go to Pinpoint Test B . |
| C1288 | Pressure Transducer Main/Primary Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1288 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1310 | Brake Hydraulic Pressure Transducer Front Left Wheel Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1310 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1311 | Brake Hydraulic Pressure Transducer Front Left Wheel Signal Fault | ABS Module | Go to Pinpoint Test C . |
| C1312 | Brake Hydraulic Pressure Transducer Front Right Wheel Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1312 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1313 | Brake Hydraulic Pressure Transducer Front Right Wheel Signal Fault | ABS Module | Go to Pinpoint Test C . |
| C1314 | Brake Hydraulic Pressure Transducer Rear Left Wheel Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1314 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1315 | Brake Hydraulic Pressure Transducer Rear Left Wheel Signal Fault | ABS Module | Go to Pinpoint Test C . |
| C1316 | Brake Hydraulic Pressure Transducer Rear Right Wheel Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1316 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1317 | Brake Hydraulic Pressure Transducer Rear Right Wheel Signal Fault | ABS Module | Go to Pinpoint Test C . |
| C1318 | Brake Hydraulic Pressure Transducer Accumulator Circuit Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1318 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1319 | Brake Hydraulic Pressure Transducer Accumulator Signal Fault | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1319 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1320 | Brake Hydraulic Accumulator Travel Sensor Circuit Failure | ABS Module | DISCONNECT the ABS module. CHECK for corrosion or pushed out pins. CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1320 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1321 | Brake Hydraulic Accumulator Travel Sensor Signal Fault | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1321 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1322 | Brake Hydraulic Master Cylinder Piston Travel Sensor 1 Circuit Failure | ABS Module | Go to Pinpoint Test D . |
| C1323 | Brake Hydraulic Master Cylinder Piston Travel Sensor 1 Signal Fault | ABS Module | Go to Pinpoint Test D . |
| C1324 | Brake Hydraulic Master Cylinder Piston Travel Sensor 2 Circuit Failure | ABS Module | Go to Pinpoint Test D . |
| C1325 | Brake Hydraulic Master Cylinder Piston Travel Sensor 2 Signal Fault | ABS Module | Go to Pinpoint Test D . |
| C1327 | Brake Fluid Level Low | ABS Module | REPAIR all other DTCs before proceeding with this pinpoint test. Go to Pinpoint Test B . |
| C1328 |
NOTE:
Disconnecting and connecting the 12V battery can cause DTC B1328 to erroneously set. Electro-Hydraulic General Pressure Sensor Failure |
ABS Module | CLEAR the DTCs. CARRY OUT a software reset by cycling the ignition switch OFF. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1328 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1440 | Pressure Transducer Main/Primary Signal Faulted | ABS Module | Go to Pinpoint Test C . |
| C1471 | Brake System Volume Consumption Plausibility Failure | ABS Module | CLEAR the DTCs. CARRY OUT the service bleed procedure. REFER to Brake System Bleeding - Hybrid . If DTC C1471 is retrieved again, INSTALL a new brake master cylinder. REFER to HYDRAULIC BRAKE ACTUATION article. REPEAT the self-test. If DTC C1471 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1472 | Master Cylinder Pressure/Travel Plausibility Failure | ABS Module | CLEAR the DTCs. CARRY OUT the service bleed procedure. REFER to Brake System Bleeding - Hybrid . If DTC C1472 is retrieved again, INSTALL a new brake master cylinder. REFER to HYDRAULIC BRAKE ACTUATION article. REPEAT the self-test. If DTC C1472 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1473 | Brake System Valves Calibration Data Failure | ABS Module | Using the scan tool, CARRY OUT the Brake System Air Bleed Check. CYCLE the ignition switch and CLEAR all DTCs. CARRY OUT the ABS module self-test. If DTC C1473 is still present, CARRY OUT the Brake System Service Bleed. REFER to Brake System Bleeding - Hybrid . CYCLE the ignition switch and CLEAR all DTCs. CARRY OUT the ABS module self-test. If DTC C1473 is still present, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. |
| C1474 | High Pressure Accumulator (HPA) Sensor Calibration Data Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1474 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1475 | High Pressure Accumulator (HPA) Pressure/Volume/Temperature Plausibility Failure | ABS Module | INSTALL a new hydraulic control unit (HCU). REFER to PARKING BRAKE AND ACTUATION article. REPEAT the self-test. |
| C1476 | Brake System Pump Volume Feed Too Low Plausibility Failure | ABS Module | CLEAR the DTCs. CARRY OUT the service bleed procedure. REFER to Brake System Bleeding - Hybrid . REPEAT the self-test. If DTC C1476 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1477 | High Pressure Hydraulic Circuit Leakage Plausibility Failure | ABS Module | CLEAR the DTCs. CARRY OUT the service bleed procedure. REFER to Brake System Bleeding - Hybrid . REPEAT the self-test. If DTC C1477 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1478 | Front Left Wheel Brake Pressure Control Plausibility Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1478 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1479 | Rear Left Wheel Brake Pressure Control Plausibility Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1479 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1480 | Front Right Wheel Brake Pressure Control Plausibility Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1480 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1481 | Rear Right Wheel Brake Pressure Control Plausibility Failure | ABS Module | CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC C1481 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |
| C1523 | Brake Fluid Level Sensor Out of Range | ABS Module | Go to Pinpoint Test B . |
| C1524 | Brake Pedal Travel Sensor Calibration Incomplete | ABS Module | With the transmission in PARK, APPLY the brake pedal one full stroke and completely release it. Turn the ignition switch to the OFF position. Wait at least 4 minutes to allow the ABS module enter sleep mode. Turn the ignition switch to the ON position. CLEAR the DTCs. REPEAT the self-test. If DTC C1524 is still present, verify the pedal travel sensor operation; Go to Pinpoint Test D . |
| C1525 |
NOTE:
DTC C1525 can only be cleared after carrying out the Escape Hybrid brake system service bleed procedure. Brake System Initialization Incomplete |
ABS Module | CARRY OUT the Air Bleed Check using the scan tool. TEST DRIVE the vehicle. RETRIEVE any DTCs. If DTC C1525 returns, REPEAT the Brake Fluid Replacement procedure. REFER to the Brake System Bleeding - Hybrid procedure. |
| C1526 | Brake Pedal Travel Sensor Fault | ABS Module | INSTALL a new brake master cylinder (also referred to as the actuation control unit [ACU]). REFER to HYDRAULIC BRAKE ACTUATION article; note also, if DTC C1526 and C1524 are present, a new brake master cylinder (ACU) must be installed. Then, go to Pinpoint Test E . |
| U2050 | No Application Present | ABS Module | CARRY OUT a software reset by cycling the ignition switch OFF. DRIVE the vehicle. CLEAR the DTCs. DRIVE the vehicle. VERIFY that the red brake warning indicator is not illuminated. REPEAT the self-test. If DTC U2050 is retrieved again, INSTALL a new hydraulic control unit (HCU). REFER to VEHICLE DYNAMIC SYSTEMS article. REPEAT the self-test. |