Normal Operation and Fault Conditions
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
The ABS module carries out self tests during operation, the module also monitors various inputs and compares the values to what should be expected. If the values received are out of range, are not what is expected, or if any of the self tests fail, the ABS module sets a DTC.
PPT Y ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| C1A76:49 | Valve Relay: Internal Electronic Failure | This DTC sets when the valve relay circuit feedback does not match the commanded state. |
| C1A77:11 | Valve Relay Supply Circuit: Circuit Short To Ground | This DTC sets when the monitoring detects UVR voltage compared to the UBVR voltage indicates the valve relay has a high impedance short to ground. |
| C1A99:01 | Pressure Sensor: General Electrical Failure | This DTC indicates the brake fluid line hydraulic pressure sensor signal line located inside the ABS module has failed. |
| C1A99:28 | Pressure Sensor: Signal Bias Level Out of Range/Zero Adjustment Failure | This DTC indicates the brake fluid line hydraulic pressure sensor located inside the ABS module has failed. |
| U2007:49 | Valve(s): Internal Electronic Failure | This DTC sets due to an electrical failure (open circuit, short to ground, short to voltage) in one or more of the ABS module valve coils. |
| U2017:93 | Control Module Software #2: No Operation | This DTC sets when the RSC function is not initialized after stable driving conditions are achieved. |
| U3000:38 | Control Module: Signal Frequency Incorrect | Sets when the ABS module detects an internal fault. |
| U3000:44 | Control Module: Data Memory Failure | Sets when the ABS module detects an internal fault. |
| U3000:45 | Control Module: Program Memory Failure | Sets when the ABS module detects an internal fault. |
| U3000:46 | Control Module: Calibration/Parameter Memory Failure | Sets when the ABS module detects an internal fault. |
| U3000:47 | Control Module: Watchdog/Safety Micro-Controller Failure | Sets when the ABS module detects an internal fault. |
| U3000:48 | Control Module: Supervisor Software Failure | Sets when the ABS module detects an internal fault. |
| U3000:49 | Control Module: Internal Electronic Failure | Sets when the ABS module detects an internal fault. |
| U3000:4B | Control Module: Over Temperature | Sets when the ABS module detects excessive temperature within the ABS module. |