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No.
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TECH
1-DISPLAY
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Conditions
for Checking
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Nominal
Value
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Trouble
Codes
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Terminal
|
|
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32
|
FUEL CUTOFF SOL
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Ignition ON
|
INACTIVE
12V
|
54
|
3, 18
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|
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Engine running at idle
speed, operating temperature
|
INACTIVE
12V
|
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|
Trouble-shooting
|
Nominal Value
|
Cause of
Fault:
(If nominal
value is not attained)
|
|
|
· Ignition OFF
· Disconnect wiring harness plug from DDE control
unit K70
· Ignition ON
· Using multimeter, measure voltage
from: wiring harness plug for DDE
control unit K70 Ter. 3
to: ground
|
lower than 0.1 V
|
· Short circuit to voltage
from: wiring harness plug for DDE
control unit K70 Ter. 3
to: wiring harness plug for
fuel cutoff solenoid valve Y5 Ter. 1
· Fuel cutoff solenoid valve Y5 defective
|
|
|
|
|
|
|
|
· Ignition OFF
· Using multimeter, measure resistance
from: wiring harness plug for DDE
control unit K70 Ter. 3
to: ground
|
6 to 10 W
|
lower than 6 W:
· Short circuit to ground
from: wiring harness plug for DDE
control unit K70 Ter. 3
to: wiring harness plug for
fuel cutoff solenoid valve Y5 Ter. 1
· Fuel cutoff solenoid valve Y5 defective
greater than 10 W:
· Circuit interruption
from: wiring harness plug for DDE
control unit K70 Ter. 3
to: wiring harness plug for
fuel cutoff solenoid valve Y5 Ter. 1
|
|
|
|
|
|
|
|
|
|
· Ground contact faulty
from: fuel cutoff solenoid valve
Y5
to: casing
· Fuel cutoff solenoid valve Y5 defective
|
|
|
|
|
|
|
|
· Pulse fuel cutoff solenoid valve Y5
from: battery positive terminal
Ter. 30
to: wiring harness plug for
DDE control unit K70 Ter. 3
|
Clicking noise when fuel cutoff solenoid valve Y5
switches
|
· Mechanical fault in fuel cutoff solenoid valve Y5
|
|
|
|
|
|
|
|
|
If nominal values are attained
|
· DDE control unit K70 defective
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Note:
The tests described above are static checks and not
real function checks. For this reason, it is possible that the measurements
are okay, but that the fuel cutoff solenoid valve still does not function properly.
The cause of this may be mechanical faults. Therefore, before replacing the
control unit or the fuel cutoff solenoid valve, first perform a mechanical
function check (see Service Instructions). If the fuel cutoff solenoid valve
still does not function correctly, the control unit or the solenoid valve
must then be replaced.
Actuator test see section 5.8 "Table 5 Digital
Diesel Electronics DDE 2.1 F5:ACTUATOR TEST" test step no. 01 FUEL CUTOFF SOL
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