Alerts
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| Signal Name | Description | Condition | Impact |
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One or more of the controller area network (CAN) messages the differential locker (DFLK) expects to receive from the Restraint Control Module (RCM) is not received, indicating the RCM may be unavailable (MIA).
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DFLK is not receiving all expected CAN frames from the RCM.
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DFLK is unable to utilize the unlocked probability signal from RCM.
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DCDC_w012_calibrationFault
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Drive Interface (DI) System controller area network (CAN) communication to the differential locker (DFLK) is missing (MIA).
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DFLK is not receiving all expected CAN frames from the DI System.
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DFLK is unable to utilize the unlocked probability signal from DI System and may not be able to auto-calibrate.
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Vehicle Controller (VC) LV Power State controller area network (CAN) communication to the differential locker (DFLK) is missing (MIA).
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DFLK is not receiving all expected CAN frames from the vehicle controller.
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DFLK is unable to determine whether the vehicle controller expects it to be receiving LV power.
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Differential Locker (DFLK) printed circuit board (PCB) temperature sensor is reporting an irrational value.
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DFLK PCB temperature sensor consistently reports an irrational value.
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DFLK is unable to properly sense PCB temperature
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Differential Locker (DFLK) input voltage sensor is reporting an irrational value.
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DFLK input voltage sensor consistently reports an irrational value.
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DFLK is unable to properly sense input voltage
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Differential Locker (DFLK) current sensor is reporting an irrational value.
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DFLK current sensor reports a consistent irrational value
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DFLK is unable to properly sense current
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Position sensor has not yet been calibrated or calibration is corrupted.
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Calibration value is detected to be uninitialized or corrupted
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Differential Locker (DFLK) functionality will be disabled. Position sense will report as unknown.
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Torque trapped condition in differential locker detected.
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Differential locker has not qualified a full disengagement after seeing some axle speed in the disengaging state.
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Vehicle maneuverability affected until locker is able to disengage.
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Differential Locker (DFLK) input voltage sensor providing a value below lower bound threshold.
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Input voltage sensor reads below lower bound threshold.
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DFLK may not function as expected.
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Differential Locker (DFLK) power on self test failed.
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Coil resistance calculated during self test is out of nominal bounds
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DFLK may lose ability to control the coil
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At least one message the Differential Locker (DFLK) expects to receive from the Drive Inverter (DI) is not received.
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At least one message from the DI consumed by the DFLK is not received.
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DFLK may lose ability to control the coil
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Differential Locker (DFLK) measured coil current exceeds overcurrent limit.
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DFLK measured coil current exceeds expected current limit
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DFLK unable to properly control coil current
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A condition affecting a particular Differential Locker (DFLK) non-volatile memory (NVM) record is detected by the non-volatile memory manager.
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Non-volatile memory record not found, CRC mismatch, version mismatch, version upgrade.
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The particular non-volatile memory record may be incorrect or missing.
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A condition affecting Differential Locker (DFLK) non-volatile memory (NVM) is detected by the non-volatile memory manager.
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Non-volatile memory misconfiguration or underlying flash/filesystem error.
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Non-volatile memory records may be incorrect or missing.
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Drive Inverter (DI) controller area network (CAN) communication to the differential locker (DFLK) is missing (MIA).
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DFLK is not receiving all expected CAN frames from DI.
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DFLK coil unable to determine engagement state.
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Differential Locker (DFLK) Coil Position Sensor is reporting the exact same value repeatedly, indicating the sensor has been disconnected.
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DFLK Coil Position Sensor is consistently reporting values that are identical.
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DFLK unable to determine position.
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Differential Locker (DFLK) I2C communication with coil position sensor is missing (MIA).
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Inter-Integrated Circuit (I2C) communication between DFLK and the coil position sensor is lost.
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DFLK coil unable to determine position.
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Position sensor has not yet completed secondary post engagement calibration.
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No post-engagement calibration has been detected.
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Differential Locker (DFLK) position may report incorrectly after an engagement.
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Drive Inverter unit (DIx) controller area network (CAN) communication to the differential locker (DFLK) is missing (MIA).
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DFLK is not receiving all expected CAN frames from DIx.
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DFLK coil unable to communicate to the DIx.
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