2005 TOYOTA AVENSIS fuel

A80998
F16
Fuel Pressure Sensor
5
P
PCR1ECM
E1326 5
EB1
2
P±B
PCR2
E1333 2
EB1
1
R±W
VCS
E122 1
EB1
6
R±W
VC
E1318 6
EB1
3
BR
E2S
E121 3
EB1
4
BR
E2
E1328 4
EB1 PR
PR2P
P±B
R±W
R±W
BR
BR VC
E2S VCS
E2
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±561
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:

After completing repair, confirm P0087 is not set again.

If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may be open.

Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle
was running or stopped, the engine was warmed up or not, etc. at the time of the malfunction.
1 READ VALUE OF HAND±HELD TESTER(FUEL PRESSURE)
(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) Start the engine.
(d) Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / COMN RAIL PRESSº.
(e) Check that internal fuel pressure of the common rail is within specification below.
Reference:
Engine SpeedFuel Pressure (MPa)
IdlingApprox. 30 to 40
Running the engine at 2,500 rpm (No engine load)Approx. 50 to 100
NG Go to step 3
OK

A80452
PCR1E13
ECM Connector
E12PCR2
E2VCS
E2S
VC
A80453
E2
PR2
F16
Wire Harness Side
Fuel Pressure Sensor Connector
VCS
PRE2S
VC
05±562
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
2READ OUTPUT DTC(FUEL PRESSURE SENSOR DTCS ARE OUTPUT AGAIN)
(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)Select the item ºDIAGNOSIS / OBD/MOBD / DTC INFO / CLEAR CODESº.
(d)Clear the DTCs.
(e)Let the engine idle for 60 seconds and perform quick acceleration to 2,5\
00 rpm for 30 seconds.
(f)Select the item ºDIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODESº.\
(g)Read the DTCs. Result:
Display (DTC output)Proceed to
DTC ºP0087, P0190, P0192 and/or P0193º are output.A
DTC ºP0087, P0190, P0192 and/or P0193º are not output.B
BCHECK FOR INTERMITTENT PROBLEMS (See page 05±528)
A
REPLACE ECM (See page 10±65)
3CHECK HARNESS AND CONNECTOR(FUEL PRESSURE SENSOR ± ECM)
(a)Disconnect the F16 fuel pressure sensor connector.
(b)Disconnect the E12 and E13 ECM connectors.
(c)Check for continuity between the wire harness side con- nector.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
PCR1 (E13±26) ± PR (F16±5)
PCR2 (E13±33) ± PR2 (F16±2)
VCS (E12±2) ± VCS (F16±1)ContinuityVC (E13±18) ± VC (F16±6)Continuity
E2 (E13±28) ± E2 (F16±4)
E2S (E12±1) ± E2S (F16±3)
Standard (Check for short):
Symbols (Terminal No.)Specified condition
PCR1 (E13±26) or PR (F16±5) ± Body ground
PCR2 (E13±33) or PR2 (F16±2) ± Body ground
VCS (E12±2) or VCS (F16±1) ± Body groundNocontinuityVC (E13±18) or VC (F16±6) ± Body groundNo continuity
E2 (E13±28) or E2 (F16±4) ± Body ground
E2S (E12±1) or E2S (F16±3) ± Body ground
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE COMMON RAIL ASSY (FUEL PRESSURE SENSOR) (See page 11±78)

A81017
GeneratorGlow Plug ECMGLOW
Relay Battery
A81018
Ignition Switch
Glow Plug
Engine Speed
Starting EngineAfter Glow Time OFFOFF ON ON
OFF After Glow System
(sec.)
1
020
6840
104(
C)
(
F)
After Glow Time
Engine Coolant Temperature 120 05±622
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0380 GLOW PLUG/HEATER CIRCUIT ºAº
CIRCUIT DESCRIPTION
The glow plug is mounted inside the engine combustion room. To ensure efficient engine starting with a cold
engine, the ECM calculates time the current needs to flow into the glow plug depending on the engine cool-
ant temperature after the ignition switch is turned ON. The ECM then turns on the glow relay and permits
the current to flow into the glow plug. The glow plug is then heated and enhances fuel combustion with the
cold engine.
This DTC will be set if there is open in glow plug itself or its circuit.
The ECM performs the after glow for a certain period of time depending on the engine coolant temperature
after the engine has been started. After glow reduces a diesel engine knocking, a white smoke, and etc with
a cold engine.
05CPT±01

A33913
A80987
Engine Room R/B No. 3GLOW
Fuse
B08263
OhmmeterContinuity
05±626
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK GLOW PLUG RELAY ASSY
(a)Check the glow plug relay for continuity. (1)Check that there is continuity between and terminal.
Specified condition:
Between terminalSpecified condition
No continuity
1 ± 2Continuity
(Apply battery voltage terminals 3 and 4)
3 ± 4Continuity
NGREPLACE GLOW PLUG RELAY ASSY
OK
3CHECK FUSE(GLOW FUSE)
(a)Remove the GLOW fuse from the engine room R/B No. 3.
(b)Check for continuity in the GLOW fuse. Result: Continuity
NGCHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FUSE
OK
4INSPECT GLOW PLUG ASSY
(a)Check the glow plug for resistance. (1)Check that there is resistance between the glow
plug terminal and ground.
Standard resistance: Approx. 1.1
at 20 C (68 F)
NOTICE:

Be careful not to damage the glow plug pipes as it
could cause an open circuit or shorten life of the glow
plugs.

Avoid getting oil and fuel on the glow plug when
cleaning.

During inspection, be sure to wipe off any oil of the
terminal and bakelite washer with a dry cloth.

Do not apply more than 11 V to the glow plug as it
could cause an open circuit.
NGREPLACE GLOW PLUG ASSY (See page 19±33)
OK

A81481
EDU Wiring DiagramCOM3
COM1 COM2
Pressure
Discharge
Valve
Injector
INJ#1
INJ#4INJ#2INJ#3
PRV
GND
EDU Connector
Control
Circuit
DC/DC
Converter
BATTERY
IJT#1
IJT#4
IJT#2
IJT#3PRDIJF
ECM
Maximum 150 V
Confirmation
Pulse Command
Pulse
Warning:
Terminal J, I, H, K, L, M, N and S are high voltage
E5
E4
Maximum 150 V
05±604
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0200INJECTOR CIRCUIT / OPEN
HINT:

For more information on the EDU, see page 05±517.

If P0200 are present, Use the diagnostic trouble code matrix for fuel sy\
stem, see page 05±517.
CIRCUIT DESCRIPTION
The EDU has been adopted to drive the injector at high speeds. The EDU has \
realized high±speed driving
under high fuel pressure conditions using the DC/DC converter that provides a\
high±voltage, quick±charging
system.
Soon after the EDU receives an injection command signal (IJT) from the\
ECM, the EDU responds to the com-
mand with injector injection confirmation signal (IJF) when the current is\
applied to the injector.
05CPR±01

±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±603
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0191FUEL RAIL PRESSURE SENSOR CIRCUIT
RANGE/PERFORMANCE
CIRCUIT DESCRIPTION
Refer to DTCs P0087 on page 05±557.
INSPECTION PROCEDURE
HINT:

If DTCs ºP0087, P0190, P0192,and P0193º are output simultaneously, manifold absolute pressure
sensor circuit may be open or short. Perform the troubleshooting of DTC ºP0087, P0190, P019\
2,and
P0193º first.

Read freeze frame data using the hand±held tester. Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for deter\
mining whether the vehicle
was running or stopped, the engine was warmed up or not, etc. at the time o\
f the malfunction.
DTC No.DTC Detection ConditionTrouble Area
P0191Voltage output of the fuel pressure sensor for the common rail
is out of the standard range. (1 trip detection logic)
Fuel pressure sensor
1CHECK OTHER DTC OUTPUT(BESIDS DTC P0191)
(a)Read the DTC using the hand±held tester.
Result:
Display (DTC output)Proceed to
Only P0191 is outputA
P0191 and other DTCs are outputB
HINT:
If any other codes besides P0191 are output, perform the troubleshoot for \
those DTCs first.
BGO TO RELEVANT DTC CHART(See page 05±544)
A
REPLACE COMMON RAIL ASSY (FUEL PRESSURE SENSOR) (See page 11±78)
05CPQ±01

± 20 0 20 40 60 80 100
(± 4) 32 68 104 140 176 212 30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
A67628
Acceptable (Fig.1)
Resistance K

Temp. C (F)
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
05±599
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0180 FUEL TEMPERATURE SENSOR ºAº
CIRCUIT
DTC P0182 FUEL TEMPERATURE SENSOR ºAº
CIRCUIT LOW INPUT
DTC P0183 FUEL TEMPERATURE SENSOR ºAº
CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The fuel temperature sensor senses the fuel temperature. A
thermistor built into the sensor changes the resistance value
according to the fuel temperature. The lower the fuel tempera-
ture is, the greater the thermistor resistance becames, and the
higher the fuel temperature is, the lower the thermistor resis-
tance becomes (See Fig. 1).
The fuel temperature sensor is connected to the ECM (See be-
low). The 5 V power source voltage in the ECM is applied to the
fuel temperature sensor from terminal THF via a resistor R. The
resistor R and the fuel temperature sensor are connected in se-
ries. When the resistance value of the fuel temperature sensor
changes in accordance with changes in the fuel temperature,
the potential at terminal THF also changes. Based on this sig-
nal, the ECM performs the pressure control compensation of
the supply pump and error detection compensation of the highly
pressurized fuel system.
DTC No.Proceed toDTC Detection ConditionTrouble Area
P0180Step 1
Open or short in fuel temp.
sensor circuit for 0.5 sec.
(1 trip detection logic)
P0182Step 4
Short in fuel temp. sensor cir-
cuit for 0.5 sec.
(1 trip detection logic)
Open or short in fuel temp. sensor circuit

Fuel temperature sensor

ECM
P0183Step 2
Open in fuel temp. sensor cir-
cuit for 0.5 sec.
(1 trip detection logic)
HINT:
After confirming DTC ºP0180, P0182 or P0183º, use the hand±held tester to confirm the fuel temperature
from the ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / FUEL TEMPº.
Temperature DisplayedMalfunction
±40C (±40Open circuit
140C (284  Short circuit
05CPP±01

A10940
ECM
THF E2
F18
Fuel Temp. Sensor
1
2
5V
R
E1
E13
E13 28 29
L
BR
05±600
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:

If different DTCs related to different systems that have terminal E2 as the ground terminal are output
simultaneously, terminal E2 may be open.

Read freeze frame data using
\b\b
\b 
\f
 Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for d\
etermining whether the vehicle
was running or stopped, the engine was warmed up or not, etc. at the time o\
f the malfunction.
1READ VALUE OF HAND±HELD TESTER(FUEL TEMPARATURE)
(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)Select the item ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / FUEL TEMPº and read its value dis- played on the hand±held tester.
Temperature: Same value as the actual fuel temperature.
Result:
Temperature DisplayedProceed to
±40C (±40 )A
140 C (284 ) or moreB
OK (Same as present temperature)C
HINT:

If there is an open circuit, the hand±held tester indicates ±40 C (±40 F).

If there is a short circuit, the hand±held tester indicates 140 C (284 F) or more.
BGo to step 4
CCHECK FOR INTERMITTENT PROBLEMS (See page 05±528)
A