2005 TOYOTA AVENSIS Service Repair Manual

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Page 4057 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual P18349
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
05 −89
AVENSIS Supplement (RM 1045E)
2 READ VALUE OF HAND −HELD TESTER(OUTPUT VOLTAGE OF HEATED OXYGEN
SENSOR)
(a) Connect the hand −held tester to

Page 4058 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A62378
1 2
3 4
+BHT
E1
OX
B1S1 H7
Heated Oxygen Sensor Component Side:
Front View
A79112
E1OX B2S1 H9
+B
HT Heated Oxygen Sensor
Component Side:
Front View
B16200
05−90
− DIAGNOSTICSSFI SYSTEM (2A

Page 4059 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A76821
Wire Harness Side:
B1S1B2S1 H7 H9
Heated Oxygen Sensor Connector OX
HT
OX
HT
E1E1
A76823
OX2A
ECM Connector E12
OX1A
HT2A HT1A
E2 E13
A72920
Reference (Bank1Sensor1System Drawing)
Heated Oxygen

Page 4060 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual 05−92
−
DIAGNOSTICS SFI SYSTEM (2AZ−FSE)
AVENSIS Supplement (RM 1045E)
8 CHECK AIR INDUCTION SYSTEM
(a) Check for vacuum leaks in the air induction system.
NG REPAIR OR REPLACE AIR INDUCTION SY

Page 4061 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual − DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−93
AVENSIS Supplement (RM1045E)
14 READ OUTPUT DTC(SEE IF HEATED OXYGEN SENSOR DTCS ARE OUTPUT
AGAIN)
(a) Connect the hand−held tester to the DLC3.
(b) Tur

Page 4062 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual − DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−75
AVENSIS Supplement (RM1045E)
DTC P0120 THROTTLE/PEDAL POSITION
SENSOR/SWITCH ”A” CIRCUIT
DTC P0122 THROTTLE/PEDAL POSITION
SENSOR/SWITCH ”A” CIRCU

Page 4063 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A19755A19802
Throttle Position Sensor ECM
Magnet
Magnet
IC No.2 IC No.1
VC
VTA1
E2 VTA2Throttle Position Sensor Output Voltage (V)
Fail Safe Angle
*1
Usable Range
Throttle Valve Opening Angle (deg)84

Page 4064 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual − DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−77
AVENSIS Supplement (RM1045E) DTC No.
DTC Detection Condition
Condition (a) of DTC P0120, P0122, P0123, P0220, P0222 or P0223 continues
for 2 seconds
(Open

− DIAGNOSTICSSFI SYSTEM (2AZ−FSE)
05−77
AVENSIS Supplement (RM1045E) DTC No.
DTC Detection Condition
Condition (a) of DTC P0120, P0122, P0123, P0220, P0222 or P0223 continues
for 2 seconds
(Open or short in the throttle position sensor circuit)Trouble Area
P0120
Detection conditions for DTCs P0122 and P0123 are not satis-
fied but condition (a) is satisfied
(a) VTA1is ”0.2 V or less” or ”4.8 V or more”SThrottle position sensor (built in throttle body)
SECM
P0122(a) VTA1is 0.2 V or less
SThrottle position sensor (built in throttle body)
SShort in VTA1circuit
SOpen in VC circuit
SECM
P0123(a) VTA1is 4.8 V or more
SThrottle position sensor (built in throttle body)
SOpen in VTA1circuit
SOpen in E2 circuit
SVC and VTA1circuits are short−circuited
SECM
P0220
Detection conditions for DTCs P0222 and P0223 are not satis-
fied but condition (a) is satisfied
(a) VTA2 is ”0.5 V or less” or ”4.8 V or more” and
VTA1is ”0.2 V or more” and ”1.8 V or less”
SThrottle position sensor (built in throttle body)
SECM
P0222(a) VTA2 is 0.5 V or less
SThrottle position sensor (built in throttle body)
SShort in VTA2 circuit
SOpen in VC circuit
SECM
P0223(a) VTA2 is ”4.8 V or more” and
VTA1is ”0.2 V or more” or ”1.8 V or less”
SThrottle position sensor (built in throttle body)
SOpen in VTA2 circuit
SOpen in E2 circuit
SVC and VTA2 circuits are short−circuited
SECM
P2135
Condition (a) continues for 0.5 second or more, or
condition (b) continues for 0.4 second or more:
(a) Difference between VTA1and VTA2 is 0.02 V or less
(b) VTA1is ”0.2 V or less” and VTA2 is ”0.5 V or less”SVTA1and VTA2 circuits are short−circuited
SThrottle position sensor (built in throttle body)
SECM
NOTICE:
When a malfunction is detected, the throttle valve is locked at a certain opening angle. Also, the
whole electronically controlled throttle operation is cancelled until the system returns to normal and
the ignition switch is turned OFF.
HINT:
SAfter confirming DTCs, use the hand−held tester to confirm the throttle valve opening percentage and
closed throttle position switch condition.
SThe THROTTLE POS means VTA1signal as well as the THROTTLE POS #2 for the VTA2 signal.
Reference (Normal condition):
Tester displayAccelerator pedal fully releasedAccelerator pedal fully depressed
THROTTLE POS10to24%64 to 96 %
THROTTLE POS #22.1to 3.1V4.5 to 5.5 V

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