| Test | TECH 1 | Notes | Nominal Values | Possible |
|---|---|---|---|---|
| Step | Display | Trouble | ||
| No. | Codes | |||
| 10 | EST ADJUSTM. SW. | Engine idling | ||
| (operating temperature, 750 to 1000 1/min) | ||||
| Normal operation: | CLOSED 0 V | - | ||
| Basic adjustment mode: | OPEN 12 V |
Note:
The basic adjustment coding plug is to be opened only for the ignition basic adjustment with the engine running (for correct ignition basic adjustment see Test Step 08).
During normal operation plug connection X 10 remains closed.
Trouble-shooting: Nominal Value: Cause of Trouble:
Engine idling · Lead interruption from control unit
(operating temperature, 750 to 1000 1/min) K 84/Ter. 24 to plug X 10 (bryl) or
Disconnect basic adjusting plug OPEN 12 V from plug X 10 to control unit
K 84/Ter. 13 (-)
· Control unit K 84 defective