Toyota FJ Cruiser (GSJ 10, 15 series). Instruction — part 111
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–399
ES
DESCRIPTION
Refer to DTC P0230 (See page
WIRING DIAGRAM
Refer to DTC P0230 (See page
INSPECTION PROCEDURE
(a) Check if there is pressure in the fuel inlet hose.
HINT:
If there is fuel pressure, you will hear the sound of fuel
flowing.
OK
NG
(a) Connect an intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Select the following menu items: DIAGNOSIS /
ENHANCED OBD II / ACTIVE TEST / FUEL PUMP/
SPD.
(d) Check whether operating sounds can be heard while
operating the relay using the tester.
OK:
Operating sounds can be heard from relay.
OK
NG
(a) Remove the circuit opening relay from the engine room
R/B.
(b) Check the circuit opening relay resistance.
Standard Resistance
(c) Reinstall the circuit opening relay.
NG
Fuel Pump Control Circuit
1
CHECK FUEL PUMP OPERATION
Go to step 10
2
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE CIRCUIT OPENING
RELAY)
Go to step 5
3
INSPECT CIRCUIT OPENING RELAY
B016200
Tester Connections
Specified Conditions
3 - 5
10 k
Ω or higher
3 - 5
Below 1
Ω
(when battery voltage applied to terminals 1 and 2)
REPLACE CIRCUIT OPENING RELAY
ES–400
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
OK
(a) Turn the ignition switch ON.
(b) Measure the voltage between the terminals of the B3
and E47 ECM connectors.
Standard Voltage
OK
NG
Inspect the ECM power source circuit (See page
NG
OK
(a) Remove the fuel pump relay from the engine room R/B.
(b) Check the fuel pump relay resistance.
Standard Resistance
(c) Reinstall the fuel pump relay.
NG
OK
4
INSPECT ECM (FC VOLTAGE)
B3
E47
E1 (-)
FC (+)
ECM Connector
G100798E16
Tester Connections
Specified Conditions
FC (E47-10) - E1 (B3-1)
11 to 14 V
REPLACE ECM (See page
)
CHECK AND REPLACE HARNESS AND CONNECTOR (ECM - CIRCUIT OPENING RELAY -
IGNITION SWITCH)
5
INSPECT ECM POWER SOURCE CIRCUIT
REPAIR OR REPLACE HARNESS OR
CONNECTOR
6
INSPECT FUEL PUMP RELAY ASSEMBLY
A030519E02
Tester Connections
Specified Conditions
3 - 4
Below 1
Ω
3 - 5
10 k
Ω or higher
3 - 4
10 k
Ω or higher
(when battery voltage applied to terminals 1 and 2)
3 - 5
Below 1
Ω
(when battery voltage applied to terminals 1 and 2)
REPLACE FUEL PUMP RELAY ASSEMBLY
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–401
ES
(a) Inspect the fuel pump resistance.
(1) Measure the resistance between terminals 4 and 5.
Standard Resistance:
0.2 to 3.0
Ω at 20°C (68°F)
(b) Inspect the fuel pump operation.
(1) Apply battery voltage to both terminals. Check that
the pump operates.
NOTICE:
•
These tests must be done quickly (within 10
seconds) to prevent the coil from burning
out.
•
Keep the fuel pump as far away from the
battery as possible.
•
Always do the switching at the battery side.
NG
OK
(a) Check the harness and connector between the fuel
pump and fuel pump relay.
(1) Disconnect the L5 fuel pump connector.
(2) Remove the fuel pump relay from the engine room
R/B.
(3) Check the resistance.
Standard Resistance (Check for open)
Standard Resistance (Check for short)
(4) Reconnect the fuel pump connector.
(5) Reinstall the fuel pump relay.
(b) Check the harness and connector between the fuel
pump and body ground.
(1) Disconnect the fuel pump connector.
(2) Check the resistance.
Standard Resistance (Check for open)
(3) Reconnect the fuel pump connector.
7
INSPECT FUEL PUMP ASSEMBLY
Component Side:
Fuel Pump
A074356E22
REPLACE FUEL PUMP ASSEMBLY (See
page
8
CHECK HARNESS AND CONNECTOR (FUEL PUMP - FUEL PUMP RELAY, FUEL PUMP -
BODY GROUND)
1
4
2
5
3
Fuel Pump Relay
Fuel Pump Connector
Wire Harness Side:
Engine Room R/B:
L5
Front View
A133464E01
Tester Connections
Specified Conditions
Fuel pump (L5-4) - Fuel pump relay (4)
Below 1
Ω
Tester Connections
Specified Conditions
Fuel pump (L5-4) or Fuel pump relay (4) - Body
ground
10 k
Ω or higher
Tester Connections
Specified Conditions
Fuel pump (L5-5) - Body ground
Below 1
Ω
ES–402
1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
NG
OK
(a) Remove the circuit opening relay from the engine room
R/B.
(b) Remove the fuel pump relay from the engine room R/B.
(c) Check the resistance.
Standard Resistance (Check for open)
Standard Resistance (Check for short)
(d) Reinstall the circuit opening relay.
(e) Reinstall the fuel pump relay.
NG
OK
(a) Remove the fuel pump relay from the engine room R/B.
(b) Check the fuel pump relay resistance.
Standard Resistance
(c) Reinstall the fuel pump relay.
NG
OK
REPAIR OR REPLACE HARNESS OR
CONNECTOR
9
CHECK HARNESS AND CONNECTOR (CIRCUIT OPENING RELAY - FUEL PUMP RELAY)
1
4
2
5
3
1
2
5
3
Fuel Pump Relay
Circuit Opening Relay
Engine Room R/B:
Engine Room R/B:
A133465E01
Tester Connections
Specified Conditions
Circuit opening relay (3) - Fuel pump relay (3)
Below 1
Ω
Tester Connections
Specified Conditions
Circuit opening relay (3) or Fuel pump relay (3) -
Body ground
10 k
Ω or higher
REPAIR OR REPLACE HARNESS OR
CONNECTOR
CHECK AND REPAIR HARNESS AND CONNECTOR (EFI RELAY - CIRCUIT OPENING RELAY)
10
INSPECT FUEL PUMP RELAY ASSEMBLY
A030519E02
Tester Connections
Specified Conditions
3 - 4
Below 1
Ω
3 - 5
10 k
Ω or higher
3 - 4
10 k
Ω or higher
(when battery voltage applied to terminals 1 and 2)
3 - 5
Below 1
Ω
(when battery voltage applied to terminals 1 and 2)
REPLACE FUEL PUMP RELAY ASSEMBLY
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