Fuel Pump On-Vehicle Inspection - Lexus 2005 IS300 User Manual

SF-6
Up
Screw
Pulsation Damper
Fuel Inlet Hose
SST
2005 LEXUS IS300 (RM1140U)
FUEL PUMP
Hand- held
ON-VEHICLE INSPECTION
Tester
1.
(a)
(b)
NOTICE:
Do not start the engine.
D09381
(c)
(d)
(e)
(f)
If there is no pressure, check the fusible link, fuses, EFI main
relay, fuel pump ECU, fuel pump, ECM and wiring connections.
(g)
(h)
B09511
2.
(a)
(b)
(c)
NOTICE:
F
F
B01958
(d)
SST
(Union)
(e)
SST
(Adapter)
A02818
SFI - FUEL PUMP
CHECK FUEL PUMP OPERATION
Connect a hand-held tester to the DLC3.
Turn the ignition switch ON and hand-held tester main
switch ON.
Select the following menu items: DIAGNOSIS/EN-
HANCED OBD ll / ACTIVE TEST / FUEL PUMP / SPD.
Please refer to the hand-held tester operator's manual
for further details.
If you have no hand-held tester, connect the positive (+)
and negative (-) leads from the battery to the fuel pump
connector (See step 3).
Check that the pulsation damper screw rises up when the
fuel pump operates.
Turn the ignition switch OFF.
Disconnect the hand-held tester from the DLC3.
CHECK FUEL PRESSURE
Check the battery positive voltage is above 12 V.
Disconnect the negative (-) terminal cable from the bat-
tery.
Remove the union bolt and 2 gaskets, and disconnect the
fuel inlet hose from the fuel pipe support.
Put a shop towel under the fuel pipe support.
Slowly loosen the union bolt.
Install the fuel inlet hose and SST (pressure gauge) to the
fuel pipe support with the 3 gaskets and SST (union and
adapter).
SST 09268-45014 (09268-41190, 90405-06167)
Torque: 29 N·m (300 kgf·cm, 21 ft·lbf)
Wipe off any splattered gasoline.
Author :
SF0N2-10
Date :
1387