|
No.
|
TECH 1 Display
|
Conditions for
Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
02
|
SELECT
ACTUATOR
IGN.
COIL 2+3
|
Ignition OFF
Disconnect engine speed plug
Connect checking spark plugs to
ignition cables of
cylinders 2 and 3
Ignition ON
Engine OFF
Press key F5 in the system main
menu, select the desired test using the arrow keys and confirm with YES.
Follow the instructions in the
TECH 1 display.
Note:
The checking spark plug is
actuated at a frequency of 5 Hz (actuation duration 10 ms).
The check is comieted after a maximum of 30 s.
|
Ignition spark visible at each checking spark plug
|
-
|
20,
24
|
|
Notes on Trouble - shooting:
|
Nominal Value:
|
Cause of Fault:
|
|
· Disconnect control unit K 61 from
wiring harness
· Ignition ON
|
|
|
|
· Using multimeter, measure voltage at
control unit K 61 / Ter. 20 to ground
|
11.5 to 13.5 V
|
Short circuit or lead
interruption
- from
control unit K 61 / Ter. 20 to ignition coil L 2 / Ter. 3
- from
ignition coil L 2 / Ter. 2 to Ter. 15
|
|
· Using multimeter, check from Motronic
control unit plug K 61 / Ter. 2 to ground
|
approx. 0 W
|
· Short circuit or lead interruption from
Motronic control unit K 61 / Ter. 2 to ground
|
|
Check only with TECH 80 and
DIS checking cable:
· Connect control unit K 61
· Connect ignition coil L 2
· Connect primary signal to ignition coil
L 2 with adapter and TECH 80 and start engine
|
300 to 400 V
|
· Short circuit or lead interruption
from to ignition coil L 2 / Ter. 3
- control
unit K 61 / Ter. 20
· Ignition coil L 2 defective
· Control unit K 61 defective
|
|
Resistance value of ignition
coil at 0 to 100 °C / 32 to 212 °F:
|
Primary side
Secondary side:
|
0.45 to 0.65 W
11 to 16 kW
|
|
|
|
|
|
|
|
|
