# Diagnostic commands - testbox - service identifier
| Expert information
| The result of the request may vary depending on the currently installed software version and the DiagnosticMode that has been set.
| List of request examples:
> Action | Request
> Read event memory | 18 xx FF FF
> Read event memory (all entries) | 18 02 FF FF
> Read event memory (active entries) | 18 FA FF FF
> Read event memory (inactive entries) | 18 FB FF FF
> Clear event memory | 14 xx xx
> Clear event memory (all entries) | 14 FF FF
> Clear event memory (individual entries, DTC = xxxxh) | 14 xx xx
> Read local identifier (ReadDataByLocalIdentifier) | 21 xx
> Read local identifier - addresses and sizes of upload areas | 21 01
> Read local identifier - monitoring of standard measured value window | 21 02
> Read local identifier - write TIM data to control unit | 21 03
> Read local identifier - actuator test | 21 04
> Read local identifier - parameterize TIM | 21 05
> Read local identifier - result after deleting TIM data | 21 06
> Read local identifier - result after deleting adaptation data | 21 07
> Read local identifier - result after deleting operating data | 21 08
> Read local identifier - result after deleting the BD field "Oil ageing" | 21 09
> Read local identifier - result after deleting the service data area | 21 0A
> Read local identifier - shift program configuration | 21 0B
> Read local identifier - activate the internal vehicle model | 21 0C
> Read local identifier - result after deleting the oil level trend memory | 21 0E
> Read local identifier - oil level trend memory | 21 0F
> Read local identifier - DIANA standard measured value window | 21 10
> Read local identifier - shift log adaptation DHL | 21 11
> Read local identifier - braking log adaptation DHL | 21 12
> Read local identifier - log of static DHL | 21 13
> Read local identifier - brake manager data | 21 14
> Read local identifier - public CAN (static data) | 21 15
> Read local identifier - public CAN (dynamic data) | 21 16
> Read local identifier - private CAN (static data) | 21 17
> Read local identifier - private CAN (dynamic data) | 21 18
> Read local identifier - result after clearing the history storage | 21 19
> Read local identifier - Flush / Oil Change Support | 21 20
> Read local identifier - Flush / Oil Change Support | 21 21
> Read local identifier - identification data LId + "xx = 80 - BF" | 21 xx
| Further topics:
More information on: Service identifiers More information on: Negative Response Codes (NRCs) Up Higher-level section © by Voith Turbo GmbH & Co. KG send remarks to joachim.ehleiter@voith.com (electronic department) or r.theilacker@voith.com (electronic department)