2005 TOYOTA AVENSIS Service Repair Manual

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Page 4385 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A84847
EP1EP2VPA2
VCP1
VPA1VCP2 A20
Wire Harness Side (RHD):
Front View Accelerator Pedal Position Sensor
Connector
A84847
EP1
EP2VPA2
VCP1
VPA1 VCP2 A20 Accelerator Pedal Position Sensor
Connector
Wi

A84847
EP1EP2VPA2
VCP1
VPA1VCP2 A20
Wire Harness Side (RHD):
Front View Accelerator Pedal Position Sensor
Connector
A84847
EP1
EP2VPA2
VCP1
VPA1 VCP2 A20 Accelerator Pedal Position Sensor
Connector
Wire Harness Side (LHD):
Front View
A81091
E9
ECM ConnectorVPA
VCPA
VPA2
EPA2
VCP2EPA
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−481
AVENSIS Supplement (RM1045E)
3 CHECK HARNESS AND CONNECTOR(ACCELERATOR PEDAL POSITION
SENSOR−ECM)
(a) Disconnect the A20 accelerator pedal position sensor
connector.
(b) Disconnect the E9 ECM connector.
(c) Check the resistance between the wire harness side con-
nectors.
Standard (Check for open) (RHD):
Tester ConnectionSpecified Condition
VPA1(A20−5)−VPA (E9−22)
EP1(A20−1)−EPA (E9−28)
VCP1(A20−4)−VCPA (E9−26)Below1VPA2 (A20−2)−VPA2 (E9−23)Below1
EP2 (A20−3)−EPA2 (E9−29)
VCP2 (A20−6)−VCP2 (E9−27)
Standard (Check for open) (LHD):
Tester ConnectionSpecified Condition
VPA1(A20−5)−VPA (E9−22)
EP1(A20−3)−EPA (E9−28)
VCP1(A20−6)−VCPA (E9−26)Below1VPA2 (A20−2)−VPA2 (E9−23)Below1
EP2 (A20−1)−EPA2 (E9−29)
VCP2 (A20−4)−VCP2 (E9−27)
Standard (Check for short) (RHD):
Tester ConnectionSpecified Condition
VPA1(A20−5) or VPA (E9−22)−Body ground
EP1(A20−1) or EPA (E9−28)−Body ground
VCP1(A20−4) or VCPA (E9−26)−Body ground10korhigherVPA2 (A20−2) or VPA2 (E9−23)−Body ground10kor higher
EP2 (A20−3) or EPA2 (E9−29)−Body ground
VCP2 (A20−6) or VCP2 (E9−27)−Body ground
Standard (Check for short) (LHD):
Tester ConnectionSpecified Condition
VPA1(A20−5) or VPA (E9−22)−Body ground
EP1(A20−3) or EPA (E9−28)−Body ground
VCP1(A20−6) or VCPA (E9−26)−Body ground10korhigherVPA2 (A20−2) or VPA2 (E9−23)−Body ground10kor higher
EP2 (A20−1) or EPA2 (E9−29)−Body ground
VCP2 (A20−4) or VCP2 (E9−27)−Body ground
(d) Reconnect the accelerator pedal position sensor connec-
tor.
(e) Reconnect the ECM connector.
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
REPLACE ACCELERATOR PEDAL ASSY
(See page10−66 of Pub. No. RM1018E AVENSIS REPAIR MANUAL)

Page 4386 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual − DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
05−473
AVENSIS Supplement (RM1045E)
DTC P2120 THROTTLE/PEDAL POSITION
SENSOR/SWITCH ”D” CIRCUIT
DTC P2122 THROTTLE/PEDAL POSITION
SENS

Page 4387 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A71015
0
Accelerator Pedal Opening Angle (deg)125
VPA1 VPA2
5
Movable Range
Usable Range
Usable Range *1
*1
Movable Range
Usable Range
*2
Accelerator pedal released (15˚)
Accelerator pedal depressed

A71015
0
Accelerator Pedal Opening Angle (deg)125
VPA1 VPA2
5
Movable Range
Usable Range
Usable Range *1
*1
Movable Range
Usable Range
*2
Accelerator pedal released (15˚)
Accelerator pedal depressed
(about100˚)
Accelerator Pedal
Position Sensor
Output Voltage (V)
VPA2VPA1 EP2
VCP2
*1:
*
2:
EP1
0.8
105
VCP1*2
*2*1
05−474
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
CIRCUIT DESCRIPTION
HINT:
This electrical throttle system does not use a throttle cable.
The accelerator pedal position sensor is mounted on the accelerator pedal bracket and it has the 2 sensors
to detect the accelerator position and malfunction of the accelerator position sensor itself.
In the accelerator pedal position sensor, the voltage applied to pedal terminals VPA1and VPA2 of the ECM
changes between 0 V and 5 V in proportion to the opening angle of the accelerator pedal. The VPA1is a
signal to indicate the actual accelerator pedal opening angle which is used for the engine control, and the
VPA2 is a signal to indicate the information about the opening angle which is used for detecting malfunction.
The ECM judges the current accelerator pedal opening angle with the signals from pedal terminals VPA1
and VPA2, and the ECM controls the throttle motor based on these signals.
DTC No.DTC Detection ConditionTrouble Area
P2120
Condition (a) continues for 0.5 second or more:
VPA is less than 0.2 V for when accelerator pedal is fully re-
leased, or VPA is more than 4.8 V
P2122VPA is less than 0.2 V for 0.5 second or more when accelera-
tor pedal is fully released
P2123VPA is more than 4.8 V for 2.0 seconds or more
P2125
Condition (a) continues for 0.5 second or more:
(a) VPA2 less than 0.5 V when accelerator pedal is fully re-
leased, or VPA2 is more than 4.8 V when VPA is between
0.2 V and 3.45 V
SOpen or short in accelerator pedal position sensor circuit
SAccelerator pedal position sensor
SECM
P2127VPA2 less than 0.5 V for 0.5 second or more when accelerator
pedal is fully released
P2128VPA2 is more than 4.8 V for 2.0 seconds or more when VPA
between 0.2 V and 3.45 V
P2138
Condition (a) or (b) continues for 2.0 seconds or more:
(a) Difference between VPA and VPA2 is less than 0.02 V
(b) VPA is less than 0.2 V and VPA2 is less than 0.5 V

Page 4388 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A76878
A20
Accelerator Pedal
Position Sensor
VCP16 (LHD)
E926ECM
VCPA B
4 (RHD)
(LHD)B
(LHD) 5
IG2
B
(RHD)
VPA15 (LHD)
E922
VPA G
5 (RHD)
(LHD)G
(LHD) 6
IG2
G
(RHD)
EP13 (LHD)
E928
EPA Y
1(RHD)
(LHD)Y

Page 4389 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual FI7052Depressed Released
A848
14
VCP2 EP2
EP1
VCP 1
A20
Component Side (RHD):
1
2
5
64 3
Accelerator Pedal Position Sensor
A848 14
VCP 1
EP
1
EP2
VCP2
A20
1
2
5
64
3
Accelerator Pedal Position Senso

Page 4390 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A66060ECM ConnectorEPA (
−) VCPA (+)
E9
EPA2 ( −)
VCP2 (+)
A66060ECM Connector EPA (
−) E9
EPA2 (
−)
VCP2 (+)VCPA (+)
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
05 −477
A

Page 4391 of 5135

A84847
EP1 EP2VPA2
VCP 1
VPA1VCP2
A20
Wire Harness Side (RHD):
Front View
Accelerator Pedal Position Sensor
Connector
A84847
EP
1
EP2VPA2
VCP1
VPA 1
VCP2
A20
Accelerator Pedal Position Sensor
Connector
Wire Harness Side (LHD):
Front View
A8109 1
E9
ECM Connector VPA
VCPA
VPA2
EPA2 VCP2EPA
05−478
−
DIAGNOSTICS ECD SYSTEM (1CD −FTV)(From September, 2003)
AVENSIS Supplement (RM 1045E)
5 CHECK HARNESS AND CONNECTOR(ACCELERATOR PEDAL POSITION
SENSOR − ECM)
(a) Disconnect the A20 accelerator pedal position sensor
connector.
(b) Disconnect the E9 ECM connector.
(c) Check the resistance between the wire harness side con- nectors.
Standard (Check for open) (RHD):
Tester ConnectionSpecified Condition
VPA1 (A20 −5) − VPA (E9 −22)
EP 1 (A20 −1 )− EPA (E9 −28)
VCP 1 (A20 −4) − VCPA (E9 −26)Below1VPA2 (A20 −2) − VPA2 (E9 −23)Below 1
EP2 (A20 −3) − EPA2 (E9 −29)
VCP2 (A20 −6) − VCP2 (E9 −27)
Standard (Check for open) (LHD):
Tester ConnectionSpecified Condition
VPA 1 (A20 −5) − VPA (E9 −22)
EP 1 (A20 −3) − EPA (E9 −28)
VCP 1 (A20 −6) − VCPA (E9 −26)Below1VPA2 (A20 −2) − VPA2 (E9 −23)Below 1
EP2 (A20 −1 )− EPA2 (E9 −29)
VCP2 (A20 −4) − VCP2 (E9 −27)
Standard (Check for short) (RHD):
Tester ConnectionSpecified Condition
VPA 1 (A20 −5) or VPA (E9 −22) − Body ground
EP 1 (A20 −1 ) or EPA (E9 −28) − Body ground
VCP 1 (A20 −4) or VCPA (E9 −26) − Body ground10 k or higherVPA2 (A20 −2) or VPA2 (E9 −23) − Body ground10k or higher
EP2 (A20 −3) or EPA2 (E9 −29) − Body ground
VCP2 (A20 −6) or VCP2 (E9 −27) − Body ground
Standard (Check for short) (LHD):
Tester ConnectionSpecified Condition
VPA 1 (A20 −5) or VPA (E9 −22) − Body ground
EP 1 (A20 −3) or EPA (E9 −28) − Body ground
VCP 1 (A20 −6) or VCPA (E9 −26) − Body ground10 k or higherVPA2 (A20 −2) or VPA2 (E9 −23) − Body ground10k or higher
EP2 (A20 −1 ) or EPA2 (E9 −29) − Body ground
VCP2 (A20 −4) or VCP2 (E9 −27) − Body ground
(d) Reconnect the accelerator pedal position sensor connec-
tor.
(e) Reconnect the ECM connector.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE ECM (See page 10− 29)

Page 4392 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A85357
DPNR (Diesel Particulate−NOx Reduction System) Catalyst Monolithic Construction:
NO, PM
HC, CO N2, CO2
H
2O
Exhaust Gas Temperature
Sensor (on up stream) ECM
Exhaust Gas Temperature
Sensor (o

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