> ## Documentation Index
> Fetch the complete documentation index at: https://notevil.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CAPLfunctionMOSTPMShutDownStart

[Open topic with navigation](../../../../../CANoeDEFamily.htm#Topics/CAPLFunctions/MOST/Functions/CAPLfunctionMOSTPMShutDownStart.md)

**CAPL Functions** » [MOST](../CAPLfunctionsMOSTOverview.md) » mostPMShutDownStart

# mostPMShutDownStart

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE

## Function Syntax

```plaintext theme={null}
long mostPMShutDownStart();
```

## Description

Initiates a shutdown of the system by the MOST PowerMaster (see MOST Specification 2.2).

## Parameters

—

## Return Values

* `<0`: See [error codes](../CAPLfunctionsMOSTErrorCodes.md)

## Example

—