heater TOYOTA AVENSIS 2005 Service User Guide

031FR±02
03±12
± SERVICE SPECIFICATIONSINTAKE
AVENSIS REPAIR MANUAL (RM1018E)
TORQUE SPECIFICATION
1CD±FTV:
Part TightenedN
mkgf
cmft
lbf
Turbo water pipe sub±assy No.1 x Turbocharger sub±assy131359.7
Turbocharger sub±assy x Exhaust manifold5354039
Turbo oil outlet pipe x Turbocharger sub±assy131359.7
Manifold converter sub±assy x Turbocharger sub±assy 1st
2nd8.0
2582
25571 in.
lbf
18
Manifold stay x Manifold converter sub±assy 1st
2nd8.0
6182
62271 in.
lbf
45
Manifold stay x Cylinder block sub±assy 1st
2nd8.0
6182
62271 in.
lbf
45
Turbohcharger stay x Turbocharger sub±assy 1st
2nd8.0
5682
57171 in.
lbf
41
Turbocharger stay x Cylinder head sub±assy 1st
2nd8.0
5682
57171 in.
lbf
41
Manifold stay No. 2 x Manifold converter sub±assy 1st
2nd8.0
5682
57171 in.
lbf
41
Manifold stay No. 2 x Cylinder head sub±assy 1st
2nd8.0
5682
57171 in.
lbf
41
Exhaust manifold heat insulator No. 2 x Turbocharger sub±assy121228.9
Turbo insulator No. 1 x Manifold converter sub±assy2020415
Turbo insulator No. 1 x Turbocharger sub±assy2020415
Turbo insulator No. 2 x Manifold converter sub±assy2020415
Exhaust pipe assy x Heater bracket sub±assy w/ Cold area7.57666 in.
lbf
Exhaust pipe assy x Body w/ Cold area7.57666 in.
lbf
Heater bracket x Body w/ Cold area7.57666 in.
lbf
Heater pump assy x Heater bracket w/ Cold area7.57666 in.
lbf
Air tube No. 1 x Air tube No. 22525518
Air tube No. 1 x Intake air connector2525518
Air tube No. 1 x Cylinder head cover2525518
Air tube No. 1 x Engine mounting bracket FR2525518
Air cleaner case x Body7.07162 in.
lbf
Intercooler assy x Body7.07162 in.
lbf
Intercooler cooling air duct x Intercooler assy5.05144 in.
lbf
Air cleaner case x Engine mounting insulator LH7.07162 in.
lbf
Engine cover No. 1 x Cylinder head cover sub±assy8.08271 in.
lbf
Engine cover No. 1 x Intake manifold8.08271 in.
lbf
Vacuum reservoir sub±assy x Cowl top panel outer8.38573 in.
lbf

031HI±01
03±62
± SERVICE SPECIFICATIONSHEATER AND AIR CONDITIONING
AVENSIS REPAIR MANUAL (RM1018E)
TORQUE SPECIFICATION
Part TightenedN
mkgf
cmft
lbf
V (COOLER COMPRESSOR TO CRANKSHAFT PULLEY) BELT NO. 1
Tighten2.52522 in.
lbf
Fully tighten3939029
AIR CONDITIONER RADIATOR ASSY
Air conditioning tube assy x Cooler evaporator sub±assy No. 13.53530 in.
lbf
Air conditioner unit assy x Body9.810087 in.
lbf
BLOWER ASSY
Blower assy x Body Bolt:9.810087 in.
lbf
W/PULLEY COMPRESSOR ASSY (3ZZ±FE)
W/pulley compressor assy x Engine2930021
Cooler refrigerant discharge hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
W/PULLEY COMPRESSOR ASSY (1ZZ±FE)
W/pulley compressor assy x Engine2930021
Cooler refrigerant discharge hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
W/PULLEY COMPRESSOR ASSY (1AZ±FSE)
W/pulley compressor assy x Engine2930021
Cooler refrigerant discharge hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
W/PULLEY COMPRESSOR ASSY (1AZ±FE)
W/pulley compressor assy x Engine2930021
Cooler refrigerant discharge hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
W/PULLEY COMPRESSOR ASSY (1CD±FTV)
W/pulley compressor assy x Engine2930021
Cooler refrigerant discharge hose No. 1 x W/pulley compressor assy9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x W/pulley compressor assy RHD:9.810087 in.
lbf
Suction servic valve x W/pulley compressor assy LHD:9.810087 in.
lbf
Cooler refrigerant suction hose No. 1 x Suction servic valve9.810087 in.
lbf
W/RECEIVER CONDENSER ASSY
Cap x W/receiver condenser assy2.92925 in.
lbf
Magnet valve x W/receiver condenser assy3.43530 in.
lbf
Discharge tube x Magnet valve3.43530 in.
lbf
Discharge tube x W/receiver condenser assy5.45547 in.
lbf
Liquid tube sub±assy B x W/receiver condenser assy5.45547 in.
lbf
Discharge hose sub±assy x W/receiver condenser assy5.45547 in.
lbf
Liquid tube sub±assy A x W/receiver condenser assy5.45547 in.
lbf
HEAER ASSY
Heater assy x Body7.57666 in.
lbf

031HH±01
± SERVICE SPECIFICATIONSHEATER AND AIR CONDITIONING
03±61
AVENSIS REPAIR MANUAL (RM1018E)
HEATER AND AIR CONDITIONING
SERVICE DATA
Refrigerant charge volume Standard:440
30 g (15.51
1.06 oz.)
Belt deflection New belt:
Used belt:11 ± 13 mm (0.43 ± 0.51 in.)
13.5 ± 16.5 mm (0.53 ± 0.64 in.)

0505J±04
05±16
±
DIAGNOSTICS SFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
HINT:
Parameters listed in the chart may not be exactly the same as your reading due to \
the type of instrument
or other factors.
If a malfunction code is displayed during the DTC check in the check mode, check the circuit f\
or the codes
listed in the table below. For details of each code, refer to the ''See page '' under the respective ''DTC No.''
in the DTC chart.
DTC No.
(See page)Detection ItemTrouble Area*1
CHK ENGMemory
P0100
(05±24)Mass Air Flow Circuit Malfunc-
tion
Open or short in mass air flow meter circuit

Mass air flow meter

ECM

P0110
(05±30)Intake Air Temperature Circuit
Malfunction
Open or short in intake air temp. sensor circuit

Intake air temp. sensor (built into mass air flow meter)

ECM

P0115
(05±34)Engine Coolant Temperature Cir-
cuit Malfunction
Open or short in engine coolant temperature sensor circuit

Engine coolant temperature sensor

ECM

P0116
(05±38)Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Engine coolant temperature sensor

Thermostat
P0120
(05±39)Throttle Pedal Position Sensor/
Switch ºAº Circuit Malfunction
Open or short in throttle position sensor circuit

Throttle position sensor

ECM

P0121
(05±44)Throttle Pedal Position Sensor/
Switch ºAº Circuit Range/Perfor-
mance Problem

Throttle position sensor
P0125
(05±45)Insufficient Coolant Temp. for
Closed Loop Fuel Control

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

Gas leakage on exhaust system

ECM

P0130*3
(05±54)
Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

P0133*3
(05±60)
Oxygen Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)

Open or short in heated oxygen sensor circuit

Heated oxygen sensor

Air induction system

Fuel pressure

Injector

ECM

P0135
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 1)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM

P0136
(05±54)Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)
Open or short in heated oxygen sensor circuit

Heated oxygen sensor
P0141
(05±65)Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 2)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM


+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output voltage of heated oxygen
sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2: rear sensor)Mainly suspect
trouble area
OK
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(sensor 1, heater, sensor 1
circuit)
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NGExtremely rich or lean of the
actual air±fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
No reaction
No reaction
No reaction No reaction

Sensor 2: rear sensor
(sensor 2, heater, sensor 2
circuit) 05±68
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Hand±held tester only:
Narrowing down the trouble area is possible by performing ACTIVE TEST of the following ºA/F CONTROLº
(heated oxygen sensor or other trouble areas can be distinguished).
(a) Perform ACTIVE TEST using the hand±held tester (A/F CONTROL).
HINT:
ºA/F CONTROLº is an ACTIVE TEST which changes the injection volume ±12.5 % or +25 %.
(1) Connect the hand±held tester to the DLC3 on the vehicle.
(2) Turn the ignition switch ON.
(3) Warm up the engine with the engine speed at 2,500 rpm for approximately 90 sec.
(4) Select the item ºDIAGNOSIS / OBD/MOBD / ACTIVE TEST / A/F CONTROLº.
(5) Perform ºA/F CONTROLº with the engine in an idle condition (press the right or left button).
Result:
Heated oxygen sensor reacts in accordance with increase and decrease of injection volume:
+25 %
rich output: More than 0.55 V
±12.5 %
lean output: Less than 0.4 V
NOTICE:
There is a few second delay in the sensor 1 (front sensor) output, and there is about 20 seconds delay
in the sensor 2 (rear sensor) output.

05±70
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
6CHECK FUEL PRESSURE (See page 11±5)
(a)Check the fuel pressure (high or low pressure). NGCHECK AND REPLACE FUEL SYSTEM
OK
7CHECK FOR EXHAUST GAS LEAKAGE
NGREPAIR OR REPLACE EXHAUST GAS LEAKAGE POINT
OK
8READ VALUE OF HAND±HELD TESTER(OUTPUT VOLTAGE OF HEATED OXYGEN SENSOR) (See page 05±54)
OKGo to step 18
NG
9INSPECT HEATED OXYGEN SENSOR(HEATER RESISTANCE) (See page 05±45)
NGREPLACE HEATED OXYGEN SENSOR
OK
10INSPECT EFI RELAY (See page 10±3)
NGREPLACE EFI RELAY
OK
11CHECK FUSE(EFI No.2) (See page 05±45)
NGCHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FUSE
OK
12CHECK HARNESS AND CONNECTOR(HEATED OXYGEN SENSOR ± ECM) (See page 05±45)
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
05±65
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0135OXYGEN SENSOR HEATER CIRCUIT
MALFUNCTION (BANK 1 SENSOR 1)
DTCP0141OXYGEN SENSOR HEATER CIRCUIT MALFUNCTION (BANK 1 SENSOR 2)
CIRCUIT DESCRIPTION
Refer to DTC P0125 on page 05±45.
DTC No.DTC Detecting ConditionTrouble Area
P0135

When the heater operates, heater current exceeds 3.5 A
(1 trip detection logic)

Heater current is 0.2 A or less when the heater operates
(1 trip detection logic)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM
P0141

When the heater operates, heater current exceeds 2 A
(1 trip detection logic)

Heater current is 0.2 A or less when the heater operates
(1 trip detection logic)
Open or short in heater circuit of heated oxygen sensor

Heated oxygen sensor heater

ECM
WIRING DIAGRAM
Refer to DTC P0125 on page 05±45.
INSPECTION PROCEDURE
HINT:

If different DTCs that are related to a different system are output simultaneously while terminal E2 is
used as a ground terminal, terminal E2 may be open.

Read freeze frame data using \f \b\f\f
 Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for d\
etermining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ra\
tio was lean or rich, etc. at
the time of the malfunction.
1INSPECT HEATED OXYGEN SENSOR(HEATER RESISTANCE) (See page 05±45)
NG REPLACE HEATED OXYGEN SENSOR
OK
2INSPECT EFI RELAY (See page 10±3)
NG REPLACE EFI RELAY
OK
3CHECK FUSE(EFI No.2) (See page 05±45)
NG CHECK FOR SHORT IN ALL HARNESS AND COMPONENTS CONNECTED FUSE
OK
05C6A±01

+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output voltage of heated oxygen
sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2: rear sensor)Mainly suspect
trouble area
OK
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(sensor 1, heater, sensor 1
circuit)
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NGExtremely rich or lean of the
actual air±fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
No reaction
No reaction
No reaction No reaction


Sensor 2: rear sensor
(sensor 2, heater, sensor 2
circuit)
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
05±61
AVENSIS REPAIR MANUAL (RM1018E)
The following procedure of A/F CONTROL enable the technician to check and graph volatge output of the
heated oxygen sensor.
For displaying the graph indication, enter ºACTIVE TEST / A/F CONTROL / USER DATA,º then select ºO2S
B1S1 and O2S B1S2º by pressing ºYESº button and push ºENTERº button before pressing ºF4º button.
NOTICE:
If the vehicle is lack of fuel, the air±fuel ratio becomes LEAN and DTC P0133 will be set, and the CHK
ENG then comes on.
HINT:

If different DTCs that are related to a different system are output simultaneously while terminal E2 is
used as a ground terminal, terminal E2 may be open.

Read freeze frame data using    
 Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ratio was lean or rich, etc. at
the time of the malfunction.

A high heated oxygen sensor (sensor 1) voltage (0.55 V or more) could be caused by a rich air fuel
mixture. Check for conditions that would cause the engine to run rich.

A low heated oxygen sensor (sensor 1) voltage (0.4 V or less) could be caused by a lean air fuel mix-
ture. Check for conditions that would cause the engine to run lean.

A73686
05±62
±
DIAGNOSTICS SFI SYSTEM(1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
1CHECK OTHER DTC OUTPUT(BESIDES DTC P0133)
(a)Read the DTC using the hand±held tester. Result:
Display (DTC output)Proceed to
Only ºP0133º is outputA
ºP0133 or P0133º and other DTCs are outputB
HINT:
If any other codes besides ºP0133º are output, perform the troublesh\
ooting for those DTCs first.
BGO TO RELEVANT DTC CHART (See page 05±16)
A
2READ VALUE OF HAND±HELD TESTER(HEATED OXYGEN SENSOR DURING IDLING)
(a)Warm up the heated oxygen sensor with the engine speed at 2,500 rpm for a\
pproximately 90 seconds.
(b)Read the output voltage of the heated oxygen sensor during idling.
Heated oxygen sensor output voltage:
Alternates less than 0.4 V and more than 0.55 V, and duration ºtº must exist more than 0.9 sec.
(See the following table).
OKGo to step 11
NG
3INSPECT HEATED OXYGEN SENSOR(HEATER RESISTANCE) (See page 05±45)
NGREPLACE HEATED OXYGEN SENSOR
OK
4INSPECT EFI RELAY (See page 10±3)
NG REPLACE EFI RELAY
OK

+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output voltage of heated oxygen
sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output voltage of heated oxygen
sensor (sensor 2: rear sensor)Mainly suspect
trouble area
OK
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(sensor 1, heater, sensor 1
circuit)
+25 %
±12.5 %
More than 0.55 V
Less than 0.4V
Injection volume
Output voltage
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NG
+25 %
±12.5 %
Injection volume
Output voltage
NGExtremely rich or lean of the
actual air±fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
No reaction
No reaction
No reaction No reaction


Sensor 2: rear sensor
(sensor 2, heater, sensor 2
circuit) 05±56
± DIAGNOSTICSSFI SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
NOTICE:
There is a few second delay in the sensor 1 (front sensor) output, and there is about 20 seconds delay
in the sensor 2 (rear sensor) output.
The following procedure of A/F CONTROL enable the technician to check and graph voltage output of the
heated oxygen sensor.
For displaying the graph indication, enter ºACTIVE TEST / A/F CONTROL / USER DATA,º then select ºO2S
B1S1 and O2S B1S2º by pressing ºYESº button and push ºENTERº button before pressing ºF4º button.
NOTICE:
If the vehicle has low fuel, the air±fuel ratio becomes LEAN and heated oxygen sensor DTCs will be
recorded, and the CHK ENG lamp then comes on.
HINT:

If different DTCs that are related to a different system are output simultaneously while terminal E2 is
used as a ground terminal, terminal E2 may be open.

Read freeze frame data using    
 Freeze frame data records the engine conditions
when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle
was running or stopped, the engine was warmed up or not, the air±fuel ratio was lean or rich, etc. at
the time of the malfunction.

A high heated oxygen sensor (sensor 1) voltage (0.55 V or more) could be caused by a rich air fuel
mixture. Check for conditions that would cause the engine to run rich.

A low heated oxygen sensor (sensor 1) voltage (0.4 V or less) could be caused by a lean air fuel mix-
ture. Check for conditions that would cause the engine to run lean.