2005 TOYOTA AVENSIS Service Repair Manual

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Page 4289 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A66060
E13
ECM ConnectorE12
VN(+) E1(
−)
A82974
VRV Signal Waveforms
GND
20V/
Division
1 msec./ Division
05 −312
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (R

Page 4290 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A56869
V4
Front View
Wire Harness Side:
VRV Connector
A80456
E13
ECM ConnectorVN
A66056
Engine Room R/B No.
1:
EFI MAIN Relay
A81091
E9
ECM Connector MREL
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From

Page 4291 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A91218
ECM Monitor ed
A/F Sens or Voltage
Air−Fuel Ratio
Solid Electrolyte
(Zirconia Element)
Cover Atmosphere
Exhaust Gas Flange
Platinum Electrode
Coating (Ceramic)
Heater
−
DIAGNOSTICS ECD SYS

Page 4292 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual B62793
Reference:
A/F Sensor A/F Sensor
Heater Relay
Heater
Sensor
AF2+ HAF2
Duty
Control ECM
From
Battery
A/F Fuse
AF2−
MREL 05−306
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVE

Page 4293 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A91217
MREL
W
GRE9
IE5
B
Battery FL MAINAF2+ 8
1 126
Engine Room
R/B No. 1ECM
6AGR
3AF2−
HAF2
E1 E1035
E1034 1
IP1 (RHD)(LHD) 1
2
W
1
2
1
11B
W
2
1
325
3
W−B
A
A
A
W−B(RHD)
(LHD)W−B
A
IP IKEI

Page 4294 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A87894
AF−AF+
A34
Front View Component Side
(w/ Headlight Beam Level Control):
1 2
3 4
HT
+B
A/F Sensor
Connector
A87894
AF− AF+
A34
Front View
HT +B
1 2
3 4 Component Side
(w/o Headlight Beam Lev

Page 4295 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A81086
E1 (−)
E12
HAF2 (+)
ECM Connector
−
DIAGNOSTICS ECD SYSTEM (1CD−FTV)(From September, 2003)
05 −309
AVENSIS Supplement (RM1045E)
3 INSPECT ECM(A/F SENSOR HEATER VOLTAGE)
(a) Turn the ig

Page 4296 of 5135

TOYOTA AVENSIS 2005 Service Repair Manual A90355
Wire Harness Side
(w/ Headlight Beam Level Control):
+B
HT
A34
Front View A/F Sensor Connector
A90355
Wire Harness Side
(w/o Headlight Beam Level Control):
+B
HT
A34
Front View A/F Sensor Conne

A90355
Wire Harness Side
(w/ Headlight Beam Level Control):
+B
HT
A34
Front View A/F Sensor Connector
A90355
Wire Harness Side
(w/o Headlight Beam Level Control):
+B
HT
A34
Front View A/F Sensor Connector
A81087
E12
HAF2 (+)
ECM Connector
A90544
Wire Harness Side:
A/F Sensor Heater RelayHAF2
05−310
− DIAGNOSTICSECD SYSTEM (1CD−FTV)(From September, 2003)
AVENSIS Supplement (RM1045E)
4 CHECK HARNESS AND CONNECTOR(A/F SENSOR−ECM, A/F SENSOR−A/F
SENSOR HEATER RELAY)
(a) Check the harness and the connectors between the ECM
and the A/F sensor.
(1) Disconnect the A34 A/F sensor connector.
(2) Disconnect the E12 ECM connector.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open)
(w/ Headlight beam level control):
Tester ConnectionSpecified Condition
HT (A34−1)−HAF2 (E12−5)Below 1
Standard (Check for open)
(w/o Headlight beam level control):
Tester ConnectionSpecified Condition
HT (A34−2)−HAF2 (E12−5)Below 1
Standard (Check for short)
(w/ Headlight beam level control):
Tester ConnectionSpecified Condition
HT (A34−1) or HAF2 (E12−5)−Body ground10 kor higher
Standard (Check for short)
(w/o Headlight beam level control):
Tester ConnectionSpecified Condition
HT (A34−2) or HAF2 (E12−5)−Body ground10 kor higher
(4) Reconnect the A/F sensor connector.
(5) Reconnect the ECM connector.
(b) Check the harness and connectors between the A/F sen-
sor connector and the A/F sensor heater relay.
(1) Disconnect the A34 A/F sensor connector.
(2) Remove the A/F sensor heater relay from the en-
gine room R/B.
(3) Check the resistance between the wire harness
side connectors.
Standard (Check for open)
(w/ Headlight beam level control):
Tester ConnectionSpecified Condition
+B (A34−2)−A/F sensor heater relay (3)Below 1
Standard (Check for open)
(w/o Headlight beam level control):
Tester ConnectionSpecified Condition
+B (A34−1)−A/F sensor heater relay (3)Below 1
Standard (Check for short)
(w/ Headlight beam level control):
Tester ConnectionSpecified Condition
+B (A34−2) or A/F sensor heater relay (3)−Body ground10 kor higher

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