Alerts
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| Signal Name | Description | Condition | Impact |
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The vehicle controller detects a condition affecting the front left turn indicator.
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May set due to any of the following: (1) electrical condition, such as a short or open circuit; (2) over / under voltage conditions; (3) current driver condition.
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The front left turn indicator may not function as expected. Working turn indicators on the left side of the vehicle will blink at double the speed.
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The front vehicle controller (VCFRONT) has detected a condition affecting a group of eFuses, making an eFuse system reset necessary.
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VCFRONT detects a group of eFuses with a common power source have all tripped (circuit opened).
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Vehicle may be unable to drive.
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The front vehicle controller (VCFRONT) detects the battery coolant temperature sensor is reporting an incorrect value.
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There is an irrational difference between the battery coolant temperature sensor value and the battery temperature sensor value.
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Powertrain performance may be limited.
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The brushless motor has a condition affecting its functionality.
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The Powertrain Pump motor controller detected an error
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The Powertrain Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
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Over multiple discharge and recharge cycles, the low voltage (LV) battery has been overcharged by more than 5 Amp hours (Ah) compared to initial charge level. Indicates a condition affecting LV battery performance that makes replacement necessary (another alert specific to replacement should be present). May also indicate aftermarket device(s) installed on the vehicle, whose current draw interferes with LV battery management.
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Over multiple charge cycles, the LV battery has recharged by more than 5Ah compared to the energy initially discharged.
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The LV battery may enter thermal runaway if the chronic overcharge condition is not resolved. The LV battery requires replacement, with a separate alert present to directly indicate that condition.
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The driver circuitry for the air suspension compressor reports a condition affecting functionality. The air compressor will be unavailable while the condition persists.
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The air compressor driver for the air suspension reports a condition affecting functionality for an extended period of time.
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The air compressor for the air suspension system is disabled while the condition persists, making air suspension functionality limited or unavailable.
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Powertrain Pump Controller not responding on Local Interconnect Network (LIN).
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Powertrain Pump Controller not responding on Local Interconnect Network (LIN)
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Powertrain Pump Controls will not function
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The front vehicle controller (VCFRONT) detects the coolant valve has encountered a calibration error.
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During calibration, the coolant valve is unable to meet the calibration target positions.
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Powertrain performance may be limited.
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The intelligent battery sensor (IBS) is reporting a temperature value over 80 degrees C.
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The measured IBS temperature is greater than 80 degrees C.
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The IBS may be unavailable, or may not function as expected. Operating at high temperatures will contribute to accelerated low voltage (LV) battery degradation. If the measured temperature is inaccurate due to IBS issues, the LV battery's temperature-compensated voltage target may be lower than expected, also contributing to accelerated degradation.
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The vehicle controller detects the battery pump motor is experiencing a condition that is preventing the motor from running as expected.
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For at least 10.5 seconds, the battery pump motor's RPM feedback is less than 800 RPM, or the battery pump motor is intermittently or continually given a non-zero flow request.
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Powertrain performance may be limited.
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The front vehicle controller (VCFRONT) detects a power draw higher than expected from the left or right vehicle controller (VCLEFT / VCRIGHT) while in DRIVE or during a DC charging session.
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There is a sudden high power draw being observed on the VCLEFT or VCRIGHT that is outside of the defined operating threshold.
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Vehicle may be unable to drive and may start to power down after exiting DRIVE or after the DC charging session is complete.
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The front vehicle controller (VCFRONT) has detected a condition affecting the power conversion system (PCS) low voltage (LV) power feed circuit (eFuse).
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Required voltage conditions are not met during the self-test sequence.
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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.
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The front vehicle controller (VCFRONT) has detected a problem with the low voltage (LV) battery circuit (eFuse).
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Required voltage conditions are not met during the self-test sequence.
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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.
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The front vehicle controller (VCFRONT) reports the brake fluid level is low.
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VCFRONT detects the brake fluid level sensor reporting its electromechanical switch is closed, indicating the brake fluid reservoir is low or empty.
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Brakes may not work as expected.
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The front vehicle controller (VCFRONT) has detected a condition affecting the right vehicle controller (VCRIGHT) low voltage (LV) power feed circuit (eFuse) during a self-test.
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Required voltage conditions are not met during the self-test sequence.
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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.
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The front vehicle controller (VCFRONT) reports it cannot determine the brake fluid level, indicating the brake fluid level sensor is likely disconnected or has a short circuit.
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The brake fluid level sensor is not reporting a value, indicating a condition affecting electromechanical switch functionality.
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Brakes may not work as expected.
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The brushless motor has a condition affecting its functionality.
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The Battery Pump motor controller detected an error
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The Battery Pump will not be able to run. The integrated circuit will clear the condition when the condition is no longer present
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The vehicle cannot enter Drive state because the measured low voltage (LV) battery voltage is too high.
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The measured LV battery voltage is greater than 16V for 3 consecutive seconds.
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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.
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The low voltage (LV) battery is disconnected.
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No current flow detected to / from the low voltage (LV) battery for an extended time period.
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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.
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The vehicle controller detects the Media Control Unit (MCU) audio eFuse experienced a trip due to inrush current. While the vehicle controller attempts to provide power by reseting the MCU audio eFuse, a loss of audio may occur.
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The MCU eFuse experiences a false trip while the vehicle transitions into the CONDITIONING, ACCESSORY, or DRIVE vehicle power states.
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The audio may be unavailable or may cut out periodically.
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