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Service procedures

Clear HVC Battery Coolant Flood Alert

Gen3/tasks/PROC_HVC_X_CLEAR-BATTERY-COOLANT-FLOOD-ALERT

Model 3 / YModel S / X (2021+)

What this task does

Clears the HVC battery coolant flood alert, BMS_a124_Battery_Coolant_Flood, if set. This routine shall only be executed after repairing the HV battery isolation issue.

Vehicle compatibility

Select your vehicle’s hardware to see task details, requirements, and inputs. Availability is confirmed after connection.

Model 3 / Y AMD
Vehicle coverage
2024+ Model 3, 2025+ Model Y, Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Neutral; Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

This task has no listed user inputs.

Model 3 / Y Intel
Vehicle coverage
Model Y, Pre-2024 Model 3
Supported connection
Local connection
Vehicle state
Stationary · Neutral; Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

This task has no listed user inputs.

Model S / X (2021+) AMD
Vehicle coverage
2021+ Model S, 2021+ Model X
Supported connection
Local connection
Vehicle state
Stationary · Neutral; Stationary · Parked
Gateway diagnostic level
Service, Factory, DiagLinkActive

Task inputs (0)

This task has no listed user inputs.

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Model 3 / Y Model S / X (2021+)
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Clears the HVC internal isolation alert, BMS_a123_SW_Internal_Isolation, if set. This routine shall only be executed after repairing the HV battery isolation issue.

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Model 3 / Y Model S / X (2021+)
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Clears the High Voltage Controller (HVC) isolation counters and alerts BMS_a027_SW_Repeated_Isolation_Failure_In_Drive, BMS_a172_SW_Isolation_Failure_In_Drive_Warning, BMS_a123_SW_Internal_Isolation, and BMS_a124_Battery_Coolant_Flood, if set. This routine shall only be executed after repairing a HV system component for loss of isolation.

PROC_HVC_X_CLEAR-ISOLATION-CONDITION

Model 3 / Y Model S / X (2021+)
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Clear HVC SOC1 Snapshot

Clears the HVC SOC1 snapshot which in effect clears all HV battery brick weak short calculations and BMS_a029_dSoc_Limiting, if set. This routine shall only be executed after installing a new/remanufactured HV battery.

PROC_HVC_X_CLEAR-SOC1-SNAPSHOT

Model 3 / Y Model S / X (2021+)