Kubota WG1605-E3, Руководство по диагностике

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ECM SYSTEM
WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, DM
1-95
Gasoline Fuel System Diagnosis
Step Action Value(s) Yes No
G1
Were you referred to this procedure by a DTC
diagnostic chart?
–
Go to
Step G3
Go to
Step G2
G2
Connect the EControls GCP Display SW tool Perform
the On Board Diagnostic (OBD) System Check.
Key On Engine Off.
System Stopped Mode.
Check for DTC 87, 88, 91, 92, 627, 628, 629.
Are any fuel pump DTCs present in the ECM?
If codes are present follow those procedures first.
–
Go to the
applicable
DTC Table
Go to
Step G3
G3
Verify that the Gasoline fuel tank has a minimum of
1/4 tank of fuel.
Does the vehicle have fuel?
–
Go to
Step G4
Put fuel into
the fuel tank
G4
Check the fuel supply line from the tank to the fuel
pump for leakage, crimping, kinks or restriction.
Was there a problem found?
–
Go to
Step G2
Go to
Step G5
G5
Check the electrical connections at the fuel pump and
insure they are secured and tightened.
Was there a problem found?
–
Go to
Step G2
Go to
Step G6
G6
Check the Fuel Temperature and Pressure electrical
connectors at the Fuel Pressure Manifold.
Was there a problem found?
–
Go to
Step G2
Go to
Step G7
G7
Check the fuel delivery lines, to and from, the Fuel
Pressure Manifold for kinks, crimps or blockage of
fuel flow.
Was there a problem found?
–
Go to
Step G2
Go to
Step G8
G8
Key Off Engine Off.
Remove the fuel inlet hose to the injector rail.
Place the hose end into a container Key On Engine
Off.
Did fuel flow from the hose during the prime
sequence?
–
Go to
Step G2
Go to
Step G9
G9
Key Off Engine Off.
Using a volt meter place one probe on the VBAT
connector to the fuel pump and ground Key On.
Engine Off.
Was the voltage > 80 % of VBAT?
> 80 % of VBAT
Go to
Step G16
Go to
Step G10
G10
Check the 10 Amp fuel pump fuse.
Was there a problem found?
–
Go to
Step G2
Go to
Step G11
G11
Check the fuel pump relay power supply.
Key off Engine Off.
Using a DVOM place the positive probe on Pin 5 at
the fuel pump relay and battery ground Key On.
Engine Off.
Was the voltage > 80 % of VBAT?
> 80 % of VBAT
Go to
Step G16
Go to
Step G12
G12
Check the supply voltage to the relay.
Using a DVOM place the positive lead on Pin 3 at the
relay and battery ground.
Was the voltage > 80 % of VBAT?
> 80 % of VBAT
Go to
Step G13
Repair Supply
voltage wiring
KiSC issued 12, 2016 A