| Test | TECH 1 | Notes | Nominal Values | Possible |
|---|---|---|---|---|
| Step | Display | Trouble | ||
| No. | Codes | |||
| 08 | FUNCTION KEY | Stepping key not pressed | INACTIVE 5V | |
| Stepping key pressed | ACTIVE 0V |
Trouble-shooting: Nominal Value: Cause of Fault:
Ignition OFF
Disconnect plug from board computer.
Connect ohmmeter between Ter. 22 and Ter. 1.
Stepping key not pressed > 10 kW Lead interruption Ter. 1
Stepping key pressed 0 W Lead interruption Ter. 22
Control unit S63