Alerts

Adjustable termination is off (not active), and the vehicle is rear wheel drive (RWD) configuration (no secondary drive inverter exists) or the secondary drive inverter (DIS) is not connected to CAN.

The private CAN bus may not function as expected.

Required voltage conditions are not met during the self-test sequence.

The low voltage (LV) power feed circuit (eFuse) may be unable to regulate (turn on or off) the power supply to VCLEFT, which could make vehicle functions relying on VCLEFT limited or unavailable.

The measured LV battery voltage is greater than 16V for 3 consecutive seconds.

Vehicle may be unable to drive, or may take longer than expected to enter Drive state. Voltage regulation performance may be reduced across the low voltage electrical system.

The BMB device detects an over current condition.

The eFuse may open, causing a loss of LV battery pack power and limiting LV battery support for vehicle electrical system.

Required voltage conditions are not met during the self-test sequence.

The low voltage (LV) power feed circuit (eFuse) may be unable to regulate (turn on or off) the power supply to VCRIGHT, which could make vehicle functions relying on VCRIGHT limited or unavailable.

On transition into the ACCESSORY vehicle power state, if the iBooster eFuse tripped (circuit opened) within 1 second of the enable line going high (power applied to the iBooster by the VCFRONT).

Braking functionality may be limited.

Required voltage conditions are not met during the self-test sequence.

The low voltage (LV) power feed circuit (eFuse) may be unable to regulate (turn on or off) the power supply to the PCS, which could make vehicle functions relying on the PCS limited or unavailable.

No current flow detected to / from the low voltage (LV) battery for an extended time period.

Loss of support from the low voltage (LV) battery, so the vehicle electrical system is only supported via the power conversion system (PCS). Lead acid only: Some vehicle features may be unavailable due to load shedding. There should be another alert present to indicate this.

A brake pedal press is detected when the vehicle is in Park (P) and the alcohol ignition interlock device has not yet allowed drive based on a successful alcohol test result.

The vehicle is unable to drive.

Required voltage conditions are not met during the self-test sequence.

The low voltage (LV) power feed circuit (eFuse) may be unable to regulate (turn on or off) the power supply from the LV battery, which could make LV battery support for vehicle electrical systems limited or unavailable.

VCFRONT detects a group of eFuses with a common power source have all tripped (circuit opened).

Vehicle may be unable to drive.

The Battery Pump motor controller detected an error

The Battery Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present

The vehicle controller detects that the front left fog light high side driver (HSD) reports one of the following: (1) a current draw below the minimum threshold (open circuit); (2) a current draw above the maximum threshold (short circuit).

The front left fog light may not produce light or may not function as expected.

90A average eFuse current within last second.

The eFuse may have tripped.

The front vehicle controller started sleep sequence but was aborted.

Higher SoC loss than expected, higher 12V draw than expected, possible unexpected alerts.

The vehicle controller does not receive one or more of the expected SPI messages from the IBS within the expected time frame.

The vehicle may not sleep, and the low voltage (LV) battery may be overcharged or undercharged.

Lead acid: Low voltage (LV) battery voltage below threshold for 3 seconds (3s); transistor gating LV battery connection is open (no current flow); vehicle load shedding is active; or reverse battery transistor issue detected.

The vehicle will not enter drive. If the vehicle is driving, it will exit drive through graceful power-off (GPO) to come to a stop immediately. A separate alert should be present to indicate the GPO

The load voltage does not meet the power source voltage in the expected amount of time.

The load being precharged may not turn on. Vehicle functions relying on the load being precharged may not operate as expected.

The voltage mismatch is greater than 0.5V between the VCFRONT printed circuit board assembly (PCBA) input voltage and the eFuse output voltage.

Vehicle functions that rely on the VCLEFT may be limited or may not function as expected.

The MCU eFuse experiences a false trip while the vehicle transitions into the CONDITIONING, ACCESSORY, or DRIVE vehicle power states.

The audio may be unavailable or may cut out periodically.