Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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User facing to warn that Electronic Parking Brake is in service mode and many Electronic Parking Brake features are disabled.
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EPB_unitStatus == SERVICE or SERVICE_RELEASING.
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Electronic Parking Brake will not automatically apply.
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Electronic Parking Brake (EPB) has detected a left motor positive terminal short circuit.
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A short circuit is detected on the left motor positive terminal.
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Left parking brake might not operate as expected. Parking brake operation might be degraded or unavailable.
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Non user facing alert set for service set when winch mode is active.
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Enter ESM_WINCHMODE
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Electronic Parking Brake will be released
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Brake Disc Wipe algorithm is not running due to loss of input signal(s).
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One or more of the BDW algorithms input signals is unavailable.
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BDW attempted while car not in drive or input signals are being delayed
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A request to change the HVC or Contactor power state has been denied.
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Electronic Parking Brake Right detects high voltage lockout request timed out after 0.5 seconds
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High Voltage control or contactor may be faulted
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A request to change the DI power state has been denied.
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Electronic Parking Brake Left detects drive inverter lockout request timed out after 0.5 seconds
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Drive inverter may be faulted
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Stability Control has begun Controlled Deceleration for Parking Brake.
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ESM_state == ESM_DYNAMIC_EXTERNAL
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Stability Control is actuating, Electronic Parking Brake may be idle faulted
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Electronic Parking Brake's learned configuration does not match the reported config from the gateway.
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Electronic Parking Brake HW type does not match HW type reported by gateway and 5 seconds have passed since gateway booted up
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Hardware does not match current configuration, parking brake function may be degraded
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EPB's brake HW config is not compatible remote EPB's brake HW config.
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Remote EPB is present and local EPB has learnt brake HW config but is not compatible with remote brake HW config
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Remote and local EPB brake HW config is incompatible, parking brake function may be degraded
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DI requested unpark but PM didn't allow it.
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DI requests unpark and PM doesn't allow it within 40ms or is MIA
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Fault or error occurred on the DI
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If vehicle reaches 8.8kph, EPB will park.
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Vehicle speed of 8.8kph in free roll Mode
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EPB is applied.
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will prevent EPB from parking when the driver leaves.
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EPB enters Free Roll Mode from UI request
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Car will be free rolling
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The Electronic Parking Brake (EPB) reports the driver is leaving and parks the vehicle.
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The EPB attempted to park due to the driver being detected as leaving.
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The EPB will be applied.
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Electronic Parking Brake was unable to release fully.
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Electronic Parking Brake faulted during release && (nonterminal == TRUE)
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Electronic Parking Brake may not be released, and caliper may be obstructed
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Electronic Parking Brake apply failed.
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Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)
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Electronic Parking Brake may not be applied, and caliper may be obstructed
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Electronic Parking Brake was attempting to dynamic park, Controlled Deceleration for Parking Brake is unavailable, and speed crossed above 8.8kph.
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EPB_unitStatus == EPB_STATUS_DYNAMIC_PARKING, and speed crosses above 8.8kph or acceleration is above 5mph/s
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Car interrupted parking due to travelling at speed, Electronic Parking Brake not applied
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EPB_w025_motorShortedApplyL
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-
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Stability Control has begun Controlled Deceleration for Parking Brake.
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ESM_state == ESM_DYNAMIC_EXTERNAL
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Stability Control is actuating, Electronic Parking Brake may be idle faulted
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EPB_w016_leftPHalfBridge
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-
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Non-nominal termination of dynamic park.
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ESM_stateRequest transitions from ESM_DYNAMIC_PARK to any other state, while qualified speed > 0.8kph
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Electronic Parking Brake not applied, car may be free rolling, Stability Control may have failed or is unavailable
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