Hi, I am new here.
Dunno if somebody already posted a list of KWP1281 block titles.
Here it is:
| Block title |  | Answer |  | 
| $09 | Acknowledge |  | 
| $0A | NoAck |  | 
| $06 | Output end |  | 
| $00 | ECU identification read | $F6 | 
| $07 | Fault codes read | $FC | 
| $05 | Fault codes delete | $FC | 
| $04 | Actuator test | $F5 | 
| $11 | Basic setting read | $F4 | 
| $12 | Measuring values read | $F4 | 
| $28 | Basic setting normed read | $E7 | 
| $29 | Measuring values normed read | $E7 | 
| $10 | Parameter coding | $F6 | 
| $21 | Adaption read | $E6 | 
| $22 | Adaption transfer | $E6 | 
| $2A | Adaption save | $E6 | 
| $2B | Login request | $09/$FD | 
| $1B | Custom usage |  | 
| $08 | ADC channel read | $FB | 
| $01 | RAM cells read | $FE | 
| $03 | ROM/EPROM/EEPROM read | $FD | 
| $0C | EPROM/EEPROM write | $F9 | 
| $19 | EEPROM (serial) read | $EF | 
| $1A | EEPROM (serial) write | $F9 | 
| $D7 | Security access mode 1 | $3D | 
| $3D | Security access mode 2 | $09/$D7 | 
| $02 | RAM cells write | $09 | 
| $27 | Start download routine | $E8 |