HVP_w056_contactorFailedToOpen

One or more fast charge (FC) or pack contactors in the high voltage battery failed to open when requested.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Pyro fuse will blow, which will cut off all high voltage (including charging)

Description

One or more fast charge (FC) or pack contactors in the high voltage battery failed to open when requested.

Cause

The contactor(s) do not open when requested to open immediately

Clear condition

High Voltage Processor (HVP) reset

Models

Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+

Visibility

service-fix

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