2005 TOYOTA AVENSIS Service Repair Manual

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Page 4273 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual −
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −329
AVENSIS Supplement (RM 1045E)
TYPICAL ENABLING CONDITIONS
ItemSpecificationItemMinimumMaximum
Engine speed600 rpm−
The monito

Page 4274 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−330
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
3 READ VALUE OF HAND −HELD TESTER(COMPENSATION OF INJECTION
VOLUME FOR EACH CYLINDER)
(a) Connec

Page 4275 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual −
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −32 1
AVENSIS Supplement (RM 1045E)
DTC P0088 FUEL RAIL/SYSTEM PRESSURE − TO O
HIGH
DTC P 1229 FUEL PUMP SYSTEM
HINT:
S For more i

−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −32 1
AVENSIS Supplement (RM 1045E)
DTC P0088 FUEL RAIL/SYSTEM PRESSURE − TO O
HIGH
DTC P 1229 FUEL PUMP SYSTEM
HINT:
S For more information on the supply pump (suction control valve) and the common rail system,
see page 05 −255.
S If P0088 and/or P 1229 is present, refer to the diagnostic trouble codes (DTCs) table for the fuel system
on page 05 −255.
CIRCUIT DESCRIPTION
Refer to the description on page 05 −255.
DTC No.DTC Detection ConditionTrouble Area
P0088
SInternal fuel pressure of the common rail is too high:
The fuel pressure exceeds 200 MPa (2,039 kgf/cm2, 29,007
psi)
( 1 trip detection logic)
SSupply pump (Suction control valve)
S Pressure discharge valve
S Short in supply pump (Suction control valve) circuit
S Open in pressure discharge valve circuit
S ECM
P 1229
SFuel over −feed:
Internal fuel pressure is beyond the target fuel pressure de-
spite the ECM closing the suction control valve
( 1 trip detection logic)SShort in supply pump (Suction control valve) circuit
S Supply pump (Suction control valve)
S ECM
HINT:
After confirming DTC P0088 and P 1229, check the fuel rail pressure in the ”DIAGNOSIS / OBD/MOBD /
DATA LIST / ALL / COMN RAIL” using the hand −held tester.
Reference:
Engine SpeedFuel Pressure (MPa)
IdlingApproximately 30 to 40
2,500 rpm (No engine load)Approximately 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 open, or there may be short in
its circuit, and the pressure discharge valve may be stuck closed, or there may be open in its circuit.
If this DTC is present, the ECM enters the fail −safe mode and limits the engine power. The fail −safe mode
continues until the ignition switch is turned to OFF.
P 1229 (Fuel over −feed):
The ECM will set this DTC if the actual fuel pressure inside the common rail stays higher than the target fuel
pressure, despite the ECM closing the suction control valve. This DTC represents that the suction control
valve may be stuck open, or there may be short in its circuit. Under this condition, the pressure discharge
valve operates frequently.
If this DTC is present, the ECM enters the fail −safe mode and limits the engine power. The fail −safe mode
continues until the ignition switch is turned to OFF.
05CPE −03

Page 4276 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−322
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
MONITOR STRATEGY
P0088:
Required sensorsFuel pressure sensor
Frequency of operationContinuous
Duration

Page 4277 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A82347
S6
Suction Control Valve
E13 2
PCV+
21
LG LG−R
PCV−
E13 1
EDU
1PRDECM
E13 32
1
EA1 PRDR−L
E54
W
PRVE58
B
COM3
E472 P3
Pressure Discharge Valve
W
B 2
EA1
(Shielded) (Shielded)
BR
BR
BR
EIJ

Page 4278 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−324
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
1 CHECK OTHER DTC OUTPUT(IN ADDITION TO DTC P0088 AND/OR P 1229)
(a) Connect the hand −held tes

Page 4279 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A75346
Suction
Control
Valve
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −325
AVENSIS Supplement (RM 1045E)
4 INSPECT INJECTION OR SUPPLY PUMP ASSY(SUCTION CONTROL VALVE)
(a) M

Page 4280 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A81460
S6
Wire Harness Side:
PCV+ PCV−
Front View Suction Control Valve Connector
A81089
PCV+E13
PCV−
ECM Connector
05−326
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Sup

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