2005 TOYOTA AVENSIS Service Repair Manual

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Page 3945 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±583
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0101MASS OR VOLUME AIR FLOW CIRCUIT
RANGE/PERFORMANCE PROBLEM
CIRCUIT DESCRIPTION
Refer to DTC P0100 on page 05±577.

Page 3946 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A82236
VCP1VCP2
EP2
EP1
LHD Accelerator Pedal Assy
321
6 54
RHD
Accelerator Pedal Assy
321
65 4
VCP2EP2
EP1
VCP1
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±681
AVENSIS REPAIR MANUAL (RM1018E)
DTCP2121T

Page 3947 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A66060
VPA2 (+)VPA (+)
EPA (±)
EPA2 (±)
ECM Connector
E9
A54384
EP2EP1VPA2
VCP2VPA1VCP1
Wire Harness Side
LHD
A20 Accelerator Pedal Position
Sensor Connector
A54384
EP1EP2VPA2
VCP1 VPA1 VCP2
Wire H

Page 3948 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±683
AVENSIS REPAIR MANUAL (RM1018E)
(Check for Short)
Symbols (Terminal No.)Specified condition
VPA1 (A20±5) or VPA (E9±22) ± Body ground
EP1 (A20±1) or E

Page 3949 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual ±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±563
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0088FUEL RAIL/SYSTEM PRESSURE ± TOO
HIGH
DTCP1229FUEL PUMP SYSTEM
HINT:
For more information on the supply pump (suc

±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
05±563
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0088FUEL RAIL/SYSTEM PRESSURE ± TOO
HIGH
DTCP1229FUEL PUMP SYSTEM
HINT:
For more information on the supply pump (suction control valve) and the c\
ommon rail system,
see page 05±517.
If P0088 and/or P1229 are present, use the diagnostic trouble code matri\
x for fuel system,
see page 05±517.
CIRCUIT DESCRIPTION
Refer to description on page 05±517.
DTC No.DTC Detection ConditionTrouble Area
P0088
Internal fuel pressure of the common rail is too high.
The fuel pressure exceeds 200 MPa (2,039 kgf/cm2, 29,007
psi).
Supply pump (Suction control valve)
Pressure discharge valve
Short in supply pump (Suction control valve) circuit
Open in pressure discharge valve circuit
ECM
P1229
Fuel over fed.
Internal fuel pressure is beyond the target fuel pressure de-
spite the ECM closing the suction control valve.Short in supply pump (Suction control valve) circuit
Supply pump (Suction control valve)
ECM
HINT:
After confirming DTC ºP0088 and P1229º, use the hand±held tester to \
confirm the fuel rail pressure from
the ºDIAGNOSIS / OBD/MOBD / DATA LIST / ALL / COMN RAIL PRESSº.
Engine SpeedFuel Pressure (MPa)
IdlingApprox. 30 to 40
Running the engine at 2,500 rpm (No engine load)Approx. 50 to 100
MONITOR DESCRIPTION
P0088 (Internal fuel pressure too high):
The ECM will set this DTC if the fuel pressure inside the common rail is\
beyond 200 MPa (2,039 kgf/cm
2,
29,007 psi). This DTC indicates that the suction control valve may be stuck o\
pen, or there may be short in
its circuit, and the pressure discharge valve may be stuck close, or the\
re may be open in its circuit.
If this DTC is present, the ECM enters fail±safe mode and limits the \
engine power. The fail±safe mode will
continue until the ignition switch is turned OFF.
P1229 (Fuel over fed):
The ECM will set this DTC if the actual fuel pressure inside the common rai\
l stays higher than the target fuel
pressure, despite the ECM closing the suction control valve. This DTC co\
de represents that the suction con-
trol valve may be stuck open, or there may be short in its circuit. Unde\
r this condition, the pressure discharge
valve will operate quite often.
If this DTC is present, the ECM enters fail±safe mode and limits the en\
gine power. The fail±safe mode will
continue until the ignition switch is turned OFF.
05CPE±01

Page 3950 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05±564
± DIAGNOSTICSECD SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
MONITOR STRATEGY
P0088:
Required sensorsFuel pressure sensor
Frequency of operationContinuous
Duration1 sec.
CHK ENG opera

Page 3951 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A82347
S6
Suction Control Valve
E132
PCV+
21
LG LG±R
PCV±
E131
EDU
1 R±L
PRDECM
E1332
1
EA1 PRDR±L
E54
W
PRVE58
B
COM3
E472 P3
Pressure Discharge Valve
W
B 2
EA1
(Shielded) (Shielded)
BR
BR
BR
E

Page 3952 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05±566
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
1CHECK OTHER DTC OUTPUT(BESIDS DTC P0088 AND/OR P1229)
(a)Connect the hand±held tester to the DLC3.
(b)Turn the ignition

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