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[CAPL Functions](../../CAPLfunctions.md) » [K-Line](../CAPLfunctionsKLineOverview.md) » KLine\_SetW4Tester

# KLine\_SetW4Tester

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

## Function Syntax

```
long KLine_SetW4Tester( dword  W4_us)
```

## Description

Sets the W4 timing of the tester between keybyte2 and keybyte2Not.

## Parameters

* **W4\_us**: W4 time in us.\
  Value range: 0 - 650000

## Return Values

On success 0, otherwise a value less than 0.

## Example

—

[KLine\_SetW5Tester](CAPLfunctionKLineSetW5Tester.md)
