F0:DATA LIST
| No. | TECH 1 Display | Conditions for Checking | Nominal Value | Trouble Codes | Terminal |
|---|---|---|---|---|---|
| 10 | HALL SENSOR | Ignition ON | |||
| Engine running at idle speed, operating temperature | INACTIVE |
alternating
INACTIVE and
ACTIVE;
| mainly INACTIVE | 93, 94 | 8, 19, 37 |
Note:
The Hall sensor on the camshaft is used for cylinder recognition. lt informs the control unit of the crankshaft revolution on which cylinder "1" ignites. The control unit needs this information for accurate fuel injection and for adaptive knock control. If the Hall sensor malfunctions, the control unit assumes a random point in time for injector actuation.
A malfunction of the Hall sensor causes cold starting problems and increased fuel consumption.
| Notes on Trouble-shooting: | Nominal Value: |
|---|---|
| Cause of Fault: |
· Ignition ON
· Measure voltage at Hall sensor P 47 Ter. 3 to Ter. 1
| (using adapter lead) | ||
|---|---|---|
| 11.5 to 13.5 V | Short circuit or lead interruption from |
- control unit K 61 / Ter. 12 to Hall
sensor P 47 / Ter. 3
- ground or shielding to Hall sensor
| P 47 / Ter. 1 |
· Measure voltage at Hall sensor P 47
Ter. 3 to Ter. 2
(using adapter lead)
| · Push vehicle with gear engaged | |
|---|---|
| Change between approx. 0 V and approx. 5 V | |
| (mainly approx. 5 V) | · Short circuit or lead interruption from |
- control unit K 61 / Ter. 8 to
Hall sensor P 47 / Ter. 2
· Hall sensor P 47 defective