1986 TOYOTA LAND CRUISER fuel pump

CO0IQ-06
A09750
P/S Air HoseRadiator
Reservoir Tank
Intake Air
Connector
Radiator Assembly
EVAP HoseV-Bank Cover
Engine Under Cover No.1
N´m (kgf´cm, ft´lbf) : Specified torque Generator
Drive Belt
A/C CompressorA/C Compressor
Connector
A/T Oil Cooler Hose
Fan with
Fluid Coupling
Fan Pulley
49 (500, 36)
5.0 (50, 43 in.´lbf)
18 (185, 13)
Air Hose
x 8Fan Shroud Fuel Return
Hose
20 (200, 15)
A/T Oil Cooler
Hose
A/C Discharge
Tube
Clamp
Bracket WireClamp
Clamp
Lower Radiator Hose
Bracket
- COOLINGWATER PUMP
CO-3
1764 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WATER PUMP
COMPONENTS

DI-368
- DIAGNOSTICSAUTOMATIC TRANSMISSION
561 Author
: Date
:
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower-steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ºAº, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ºAºTransmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ºAºCounter gear speed sensor
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ºAº, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobilizer system, Immobilizer systemVehicle anti-theft system

DI-350
- DIAGNOSTICSENGINE
543 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Fuel Pump Control Circuit
CIRCUIT DESCRIPTION
Refer to DTC P0230 on page DI-162.
WIRING DIAGRAM
Refer to DTC P0230 on page DI-162.
INSPECTION PROCEDURE
Hand-held tester:
1 Check fuel pump operation (See page SF-7).
OK Go to step 8.
NG
2 Connect hand-held tester, and check operation of fuel pump relay.
PREPARATION:
(a) Connect the hand-held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD.
CHECK:
Check the operation of the fuel pump relay when it is switched ON and OFF by the hand-held tester.
OK:
Operating noise can be heard from the relay.
OK Go to step 4.
NG
3 Check operation of fuel pump relay (See page SF-40).
NG Replace fuel pump relay.
OK
DIB2Y-02

- DIAGNOSTICSENGINE
DI-351
544 Author
: Date
:
2004 LAND CRUISER (RM1071U)
4 Check fuel pump (See page SF-7).
NG Repair or replace fuel pump.
OK
5 Check circuit opening relay (See page SF-39).
NG Replace circuit opening relay.
OK
6 Check for open in harness and connector between EFI or ECD relay and fuel
pump, and fuel pump and body ground (See page IN-36).
NG Repair or replace harness or connector.
OK

A19521A19629
FC(+)
ECM ConnectorE9
DI-352
- DIAGNOSTICSENGINE
545 Author
: Date
:
2004 LAND CRUISER (RM1071U)
7 Check voltage between terminal FC and E1 of ECM connector.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal FC of the ECM connec-
tor and body ground.
OK:
Voltage: 9 to 14 V
NG Check for open in harness and connector be-
tween battery and FC terminal of ECM (See page
IN-36).
OK
Proceed to problem symptoms table
(See page DI-48).
8 Check fuel pump resistor (See page SF-42).
NG Replace fuel pump resistor.
OK
Check for open in harness and connector between circuit opening relay and fuel pump resistor,
and fuel pump resistor and fuel pump (See page IN-36).

- DIAGNOSTICSENGINE
DI-353
546 Author
: Date
:
2004 LAND CRUISER (RM1071U)
OBD II scan tool (excluding hand-held tester):
1 Check operation of fuel pump (See page SF-7).
OK Go to step 7.
NG
2 Check operation of fuel pump relay (See page SF-40).
NG Replace fuel pump relay.
OK
3 Check fuel pump (See page SF-7).
NG Repair or replace fuel pump.
OK
4 Check circuit opening relay (See page SF-39).
NG Replace circuit opening relay.
OK
5 Check for open in harness and connector between EFI or ECD relay and fuel
pump, and fuel pump and body ground (See page IN-36).
NG Repair or replace harness or connector.
OK

A19521A19629
FC(+)
ECM ConnectorE9
DI-354
- DIAGNOSTICSENGINE
547 Author
: Date
:
2004 LAND CRUISER (RM1071U)
6 Check voltage between terminal FC of ECM connector and body ground.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal FC of the ECM connec-
tor and body ground.
OK:
Voltage: 9 to 14 V
NG Check for open in harness and connector be-
tween battery and FC terminal of ECM (See page
IN-36).
OK
Proceed to problem symptoms table
(See page DI-48).
7 Check fuel pump resistor (See page SF-42).
NG Replace fuel pump resistor.
OK
Check for open in harness and connector between circuit opening relay and fuel pump resistor,
fuel pump resistor and fuel pump (See page IN-36).

A21040
Reference (Bank 1 Sensor 1 System Drawing)
From
BatteryEFI or ECD
No. 1 FuseEFI or ECD
RelayEFI or ECD
No. 2 FuseHeater Oxygen
Sensor
Heater
SensorHT1A
OX1A
E2
MRELECM
- DIAGNOSTICSENGINE
DI-1 15
308 Author
: Date
:
2004 LAND CRUISER (RM1071U)
NG Repair or replace harness or connector.
OK
6 Check air induction system (See page SF-1).
CHECK:
Check the air induction system for vacuum leaks.
NG Repair or replace
air induction system.
OK
7 Check fuel pressure (See page SF-7).
CHECK:
Check the fuel pressure (high or low pressure).
NG Check and repair fuel pump, pressure regulator,
fuel pipe line and filter (See page SF-1).
OK