|
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 "l " 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
· Hall
sensor plug connection P 47 connected
|
|
|
|
|
· Measure
voltage at Hall sensor P 47
Ter. 3 to Ter. 1
|
|
|
|
|
(using adapter lead)
|
11.5 to 13.5
|
· Short
circuit or lead interruption from
- injection system relay K 43 / Ter.
8 to Hall sensor P 47 / Ter. 1
- ground or shielding to Hall sensor
P 47 / Ter. 3 or control unit K 61 / Ter. 19
|
|
|
· Turn
engine at crankshaft
|
|
|
|
|
· Observe
TECH 1 display
|
Change between
INACTIVE
and ACTIVE
|
|
|
|
|
(mainly INACTIVE)
|
· Short circuit or
lead interruption from
- control unit K 61 / Ter. 8 to Hall
sensor P 47 / Ter. 2
· Hall sensor P 47 defective
|
|
|
· Using
multimeter, check from Motronic control unit plug K 61 /
|
|
|
|
|
Ter. 19 to ground
|
approx. 0 W
|
· Short circuit or
lead interruption from Motronic control unit K 61 / Ter. 19 to
ground
· Motronic control
unit K 61 defective
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
