HVP_w021 — Pyro Mia Fault

Full alert identifier: HVP_w021_PyroMiaFault

Message shown in the car

Vehicle may not restart Service is required

The vehicle detects a condition affecting one or more of the pyrotechnic (pyro) fuses.

The High Voltage (HV) contactors are not allowed to close.

The diagnostic test on one or more of the pyro fuses is unsuccessful. This can indicate the pyro fuse has blown.

The pyro fuse diagnostic test passes.

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Aout `HVP_a021_Aout` 16383 SNA	V
Squib Resistance `HVP_a021_SquibResistance` 65535 SNA	Ohm

Signal	Unit
Er Test Failed `HVP_a021_ErTestFailed`	—
High Side `HVP_a021_HighSide`	—
High Side Switch Test Failed `HVP_a021_HighSideSwitchTestFailed`	—
Low Side `HVP_a021_LowSide`	—
Low Side Switch Test Failed `HVP_a021_LowSideSwitchTestFailed`	—
One Shot Sequence `HVP_a021_OneShotSequence`	—
Pyro Leak Test Failed `HVP_a021_PyroLeakTestFailed`	—
Ref Current Test Failed `HVP_a021_RefCurrentTestFailed`	—

Show 3 more fields

Signal	Unit
Squib Res Test Failed `HVP_a021_SquibResTestFailed`	—
Vst Test Failed `HVP_a021_VstTestFailed`	—
Pyro Status `HVP_a021_pyroStatus` 0 UNKNOWN 1 OK 2 FAULT 3 ACTIVATED	—

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVP_w021.