2005 TOYOTA AVENSIS MOTOR

A81620
(a)(c)
(c)
(b)
(f)
(g)
(d)
(h)
Air Cleaner Clamp
(e)
A84698
(a)
(b)
(c)
A84699
(d)
(e)
(e)
(e)
(e)
A84700
(f)
(f)
(f)
(f)
− ENGINE CONTROL SYSTEMTHROTTLE BODY ASSY (2AZ−FSE)
10−9
AVENSIS Supplement (RM1045E)
6. REMOVE AIR CLEANER CAP SUB−ASSY
(a) Disconnect the mass air flow meter connector.
(b) Disconnect the VSV connector.
(c) Remove the 2 wiring harness clamps.
(d) Disconnect the ventilation hose.
(e) Disconnect the fuel vapor feed hose No. 1.
(f) Disconnect the fuel vapor feed hose No. 2.
(g) Loosen the hose clamp bolt.
(h) Raise the air cleaner clamp up, then the slide it to the air
cleaner cap.
(i) Remove the air cleaner cap together with the air cleaner
hose No. 1.
(j) Remove the air cleaner filter element.
7. REMOVE THROTTLE BODY ASSY
(a) Disconnect the throttle control motor connector.
(b) Remove the bolt.
(c) Unfasten the clip, then remove the wiring harness protec-
tor.
(d) Remove the bolt, then remove the ground terminal.
(e) Remove the 4 bolts, then remove the throttle body brack-
et.
(f) Remove the 4 bolts, then remove the throttle body.
(g) Remove the gasket from the intake manifold.

A78513
(h)
(i)
10
−10
−
ENGINE CONTROL SYSTEM THROTTLE BODY ASSY (2AZ−FSE)
AVENSIS Supplement (RM1045E)
(h) Disconnect the water by −pass hose No. 1.
(i) Disconnect the water by −pass hose No. 2.
8. INSTALL THROTTLE BODY ASSY
(a) Connect the water by −pass hose No. 2.
(b) Connect the water by −pass hose No. 1.
(c) Install a new gasket to the intake manifold.
(d) Install the throttle body with the 4 bolts. Torque: 9.0 N
m (90 kgf
cm, 80 in.
lbf)
(e) Install the throttle body bracket with the 4 bolts.
Torque: 21 N
m (210 kgf
cm, 15 ft
lbf)
(f) Install the ground terminal with the bolt.
Torque: 8.4 N
m (86 kgf
cm, 74 in.
lbf)
(g) Install the wiring harness protector with the clip.
(h) Tighten the bolt.
Torque: 8.4 N
m (86 kgf
cm, 74 in.
lbf)
(i) Connect the throttle control motor connector.
9. INSTALL AIR CLEANER CAP SUB −ASSY
Torque: 1.5 N
m (15 kgf
cm, 13 in.
lbf)
10. INSTALL ENGINE COVER SUB −ASSY NO.1
Torque: 9.0 N
m (92 kgf
cm, 80 in.
lbf)
11. CONNECT ENGINE WIRE NO.3 (BATTERY NEGATIVE TERMINAL) Torque: 5.4 N
m (55 kgf
cm, 48 in.
lbf)
12. ADD ENGINE COOLANT (See page 16 −7)
13. CHECK FOR ENGINE COOLANT LEAKS (See page 16 −1)
14. INSTALL ENGINE ROOM COVER SIDE
15. INSTALL RADIATOR SUPPORT OPENING COVER

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
− ENGINE CONTROL SYSTEMTHROTTLE BODY ASSY (2AZ−FSE)
10−7
AVENSIS Supplement (RM1045E)

D30688
ECM
MPX2
MPX1 29
18 E10 11
B8
22 SNOWI14
Integration Relay
8 14
DA B E8
ECT Pattern Select SW
*1: RHD
*2: LHD 4 1 W−B
CH
CF
CA 8
11
6
W−B
IPE10 MPX1
MPX2
*1
*2
B8
(*3) Pattern Select Switch (ECT SNOW Switch)
When the ECT SNOW switch is pushed, the switch contact is made and the ECT SNOW mode is selected.
To cancel the ECT SNOW mode, push the ECT SNOW switch once again. The ECT SNOW mode is automatical-
ly cancelledout when the ignition switch is turned ”OFF”.
*3
Instrument Panel J/B 05−630
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
PATTERN SELECT SWITCH CIRCUIT
CIRCUIT DESCRIPTION
Integration relay receives pattern select switch information, and sends it through the multiplex communica-
tion system to the ECM.
ECT SNOW is the system that operates the throttle motor to control engine output to reduce skidding of the
driving wheels, guarantee takeoff acceleration, driving straightness and turning stability.
WIRING DIAGRAM
05JLL−01

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
11−22
− FUELFUEL PUMP ASSY (2AZ−FSE)
AVENSIS Supplement (RM1045E)

100M2−01
A75903
Air
A66060
VG
EVGE12 ECM Connector
−
ENGINE CONTROL SYSTEM ECD SYSTEM (1CD−FTV)(From September, 2003)
10 −19
AVENSIS Supplement (RM1045E)
ECD SYSTEM (1CD −FTV)(From September, 2003)
ON −VEHICLE INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) If you have the hand −held tester:
Check the operation.
(1) Connect the hand −held tester to the DLC3.
(2) Turn the ignition switch to ON.
(3) Select the item ”DIAGNOSIS / OBD / MOBD / DATA
LIST” on the hand −held tester.
(4) Blow air into the mass air flow (MAF) meter, then
check that the MAF reading in DATA LIST fluctu-
ates.
If the operation is not as specified, check the MAF meter
(see page 10 −22), wiring and ECM.
(b) If you have no hand −held tester:
Check the operation.
(1) Turn the ignition switch to ON.
(2) Connect the positive tester probe of a voltmeter to
terminal VG of the ECM, and the negative tester
probe of the voltmeter to terminal EVG of the ECM.
(3) Blow air into the MAF meter, then check that the voltage fluctuates.
If the operation is not as specified, check the MAF meter
(see page 10 −22), wiring and ECM.
2. INSPECT INTAKE SHUTTER
(a) Listen to the operating sounds of the throttle control mo- tor.
(1) Turn the ignition switch to ON.
(2) Listen to the operating sounds while turning the ac-
celerator pedal position sensor lever.
If a collision sound is heard, check the throttle control motor.
If no sound is heard, check the wire harness and ECM.
(b) If you have the hand −held tester:
Inspect the throttle position sensor.
(1) Connect the hand −held tester to the DLC3.
(2) Turn the ignition switch to ON.
(3) Select the item ”DIAGNOSIS / OBD / MOBD / DATE LIST” on the hand held −tester.

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
− ENGINE MECHANICALCYLINDER HEAD GASKET (2AZ−FSE)
14−71
AVENSIS Supplement (RM1045E)

A84696zNon−reusable part
N·m (kgf·cm, ft·lbf) : Specified torqueThrottle Body AssyThrottle Control Motor
Connector
zThrottle Body Gasket
Water By−pass Hose
No. 2
Water By−pass Hose
No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground TerminalWiring Harness
Protector
8.4 (86, 74 in.
lbf)
− ENGINE MECHANICALPARTIAL ENGINE ASSY (2AZ−FSE)
14−17
AVENSIS Supplement (RM1045E)