Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 112
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–403
ES
(a) Inspect the fuel pump resistor resistance.
(1) Measure the resistance.
Standard Resistance:
0.941 to 0.999
Ω at 20°C (68°F)
NG
OK
(a) Check the harness and connector between the fuel
pump relay and fuel pump resistor.
(1) Remove the fuel pump relay from the engine room
R/B.
(2) Disconnect the A13 fuel pump resistor connector.
(3) Check the resistance.
Standard Resistance (Check for open)
Standard Resistance (Check for short)
(4) Reinstall the fuel pump relay.
(5) Reconnect the fuel pump resistor connector.
(b) Check the harness and connector between the fuel
pump resistor and fuel pump.
(1) Disconnect the A13 fuel pump resistor connector.
(2) Disconnect the L5 fuel pump connector.
(3) Check the resistance.
Standard Resistance (Check for open)
Standard Resistance (Check for short)
(4) Reconnect the fuel pump resistor connector.
(5) Reconnect the fuel pump connector.
11
INSPECT FUEL PUMP RESISTOR (RESISTANCE)
2 1
Ohmmeter
A126380E01
REPLACE FUEL PUMP RESISTOR (See page
)
12
CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - FUEL PUMP RESISTOR -
FUEL PUMP)
1
4
2
5
3
1 2
Fuel Pump Resistor Connector
Fuel Pump Connector
Fuel Pump Relay
Front View
Front View
Wire Harness Side:
Wire Harness Side:
Engine Room R/B:
A13
L5
A133466E01
Tester Connections
Specified Conditions
Fuel pump relay (5) - Fuel pump resistor (A13-1)
Below 1
Ω
Tester Connections
Specified Conditions
Fuel pump relay (5) or Fuel pump resistor (A13-1) -
Body ground
10 k
Ω or higher
Tester Connections
Specified Conditions
Fuel pump resistor (A13-2) - Fuel pump (L5-4)
Below 1
Ω
Tester Connections
Specified Conditions
Fuel pump resistor (A13-2) or Fuel pump (L5-4) -
Body ground
10 k
Ω or higher
ES–404
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
NG
NG
PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN IN PROBLEM SYMPTOMS TABLE
REPAIR OR REPLACE HARNESS OR CONNECTOR
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–405
ES
DESCRIPTION
This circuit opens and closes the Intake Air Control Valve (IACV) in response to changes in the engine
load in order to increase the intake efficiency (ACIS: Acoustic Control Induction System).
When the engine speed is between 2,200 rpm and 4,100 rpm and the throttle valve opening angle is 60
°
or more, the ECM supplies current to the VSV (ON status), to close the IACV. Under other conditions, the
VSV is usually OFF and the IACV is open.
WIRING DIAGRAM
ACIS Control Circuit
6
4
2
5
3
1
IACV
Throttle Valve
Valve Closed (VSV: ON)
Throttle Valve
Opening Angle
Engine Speed (rpm)
2,200
60°
4,100
A115903E01
MREL
ACIS
ECM
B17
ACIS VSV
EFI No. 2
EFI
EFI
Battery
2
1
1
2
3
5
1
2
2
1
33
B1
8
E47
A133431E01
ES–406
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
INSPECTION PROCEDURE
(a) Disconnect the vacuum hose.
(b) Connect an intelligent tester to the DLC3.
(c) Turn the ignition switch ON and turn the tester ON.
(d) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / ACTIVE TEST / INTAKE CTL
VSV1. Operate the VSV for ACIS.
(e) Check the VSV operation when it is operated using an
intelligent tester.
OK
(f)
Reconnect the vacuum hose.
OK
NG
(a) Check that air flows from port E to the air filter.
OK:
Air from port E flows out through the air filter.
(b) Apply the battery positive voltage across the terminals.
(c) Check that air flows from port E to port F.
OK:
Air from port E flows out through port F.
NG
OK
1
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE VSV FOR ACIS)
VSV is ON
VSV is OFF
Air
Port E
Port E
Port F
Port F
Air
Air Filter
A067588E05
Tester Operations
Specified Conditions
VSV ON
Air from port E flows out through port F
VSV OFF
Air from port E flows out through air filter
Go to step 4
2
CHECK VSV FOR ACIS (OPERATION)
(a)
Air
Air Filter
Port E
A054315E03
(b)
Air
Port E
Port F
Battery
A054316E03
REPLACE VSV FOR ACIS (See page
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