TOYOTA AVENSIS 2002 Repair Manual

A79159
A79156
A79157
A79160
13±12
±
INTAKE TURBOCHARGER SUB±ASSY(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
10.REMOVE HEATER BRACKET (W/ COLD AREA)
(a)Remove the bolt and the heater bracket.
11.REMOVE FLOOR PANEL BRACE FRONT(See page 15±10)
12.REMOVE EXHAUST PIPE ASSY FRONT(See page 15±10) 13. REMOVE EXHAUST PIPE ASSY (W/ COLD AREA)
(a) Remove the 2 nuts.
(b) Remove the 2 nuts and the exhaust pipe sub±assy.
14. REMOVE TURBO INSULATOR NO.2
(a) Remove the 4 bolts and the turbo insulator.

A79161
A79162
A79163
A79164
A79444
± INTAKETURBOCHARGER SUB±ASSY (1CD±FTV)
13±13
AVENSIS REPAIR MANUAL (RM1018E)
15. REMOVE TURBO INSULATOR NO.1
(a) Remove the 2 bolts and nut, and then remove the turbo
insulator.
16. REMOVE EXHAUST MANIFOLD HEAT INSULATOR
NO.2
(a) Remove the 2 bolts and the exhaust manifold heat insula-
tor.
17. REMOVE MANIFOLD STAY NO.2
(a) Remove the bolt and nut and then remove the manifold
stay.
18. REMOVE MANIFOLD STAY
(a) Remove the 4 bolts and the manifold stay.
19. REMOVE EXHAUST MANIFOLD CONVERTER
SUB±ASSY
(a) Remove the 3 nuts, the manifold converter and the gas-
ket.

A79165
A79166
A79167
B13094
B13095
13±14
± INTAKETURBOCHARGER SUB±ASSY (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
20. REMOVE TURBOCHARGER STAY
(a) Remove the 2 bolts and 2 nuts, and then remove the
turbocharger stay.
21. DISCONNECT TURBO WATER HOSE NO.1
22. DISCONNECT TURBO WATER HOSE NO.2
23. SEPARATE TURBO OIL INLET PIPE SUB±ASSY
(a) Remove the 2 nuts, the turbo oil pipe and the gasket.
24. REMOVE TURBOCHARGER SUB±ASSY
(a) Remove the 3 nuts, the turbocharger and the gasket.

B13096
A79165
B
BAA
± INTAKETURBOCHARGER SUB±ASSY (1CD±FTV)
13±15
AVENSIS REPAIR MANUAL (RM1018E)
25. REMOVE TURBO WATER PIPE SUB±ASSY NO.1
(a) Remove the 2 nuts, the turbo water pipe and the gasket.
26. INSTALL TURBO WATER PIPE SUB±ASSY NO.1
(a) Install a new gasket and the turbo water pipe with the 2 nuts.
Torque: 13 N
m (135 kgf
cm, 9.7 ft
lbf)
27. INSTALL TURBOCHARGER SUB±ASSY
(a) Install a new gasket and the turbocharger with the 3 nuts.
Torque: 53 N
m (540 kgf
cm, 39 ft
lbf)
28. INSTALL TURBO OIL INLET PIPE SUB±ASSY
(a) Install a new gasket and the oil pipe with the 2 nuts.
Torque: 13 N
m (135 kgf
cm, 9.7 ft
lbf)
29. INSTALL TURBOCHARGER STAY
(a) Install the turbocharger stay, and temporarily tighten bolt
A.
(b) Temporarily tighten nut B while pushing the cylinder head
toward the turbocharger stay.
Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
(c) Tighten bolt A.
Torque: 56 N
m (571 kgf
cm, 41 ft
lbf)
(d) Tighten nut B.
Torque: 56 N
m (571 kgf
cm, 41 ft
lbf)
30. INSTALL EXHAUST MANIFOLD CONVERTER
SUB±ASSY
(a) Install the manifold stay, and temporarily tighten the cylin-
der block side of the manifold stay.


A80106
A
A
B
B
A79163
13±16
±
INTAKE TURBOCHARGER SUB±ASSY(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
(b)Install a new gasket and the manifold converter, and tem- porarily tighten bolts A and bolts B while pushing the up-
per portion of the converter toward the turbocharger.
Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
(c)Tighten the 3 nuts. Torque: 25 N
m (255 kgf
cm, 18 ft
lbf)
(d)Tighten bolts A.
Torque: 61 N
m (622 kgf
cm, 45 ft
lbf)
(e)Tighten bolts B. Torque: 61 N
m (622 kgf
cm, 45 ft
lbf)
31.INSTALL MANIFOLD STAY NO.2
(a)Install the manifold stay No. 2, and temporarily tighten the bolt.
(b)Temporarily tighten the nut while pushing the manifold stay No. 2 toward the cylinder head.
Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
HINT:
No clearance between the stay and the cylinder head should be
confirmed.
(c)Tighten the bolt. Torque: 56 N
m (571 kgf
cm, 41 ft
lbf)
(d)Tighten the nut. Torque: 56 N
m (571 kgf
cm, 41 ft
lbf)
32.INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.2
Torque: 12 N
m (122 kgf
cm, 8.9 ft
lbf)
33.INSTALL TURBO INSULATOR NO.1 Torque: 20 N
m (204 kgf
cm, 15 ft
lbf)
34.INSTALL TURBO INSULATOR NO.2
Torque: 20 N
m (204 kgf
cm, 15 ft
lbf)
35.INSTALL EXHAUST PIPE ASSY (W/ COLD AREA) Torque: 7.5 N
m (76 kgf
cm, 66 in.
lbf)
36.INSTALL EXHAUST PIPE ASSY FRONT(See page 15±10)
37.INSTALL FLOOR PANEL BRACE FRONT(See page 15±10)
38. INSTALL HEATER BRACKET (W/ COLD AREA) Torque: 7.5 N
m (76 kgf
cm, 66 in.
lbf)
39. INSTALL HEATER PUMP ASSY (W/ COLD AREA) Torque: 7.5 N
m (76 kgf
cm, 66 in.
lbf)
40.INSTALL FUEL FILTER ASSY(See page 11±82)

A64328
2 to 7 mm0 to 2 mm
A78274
Upward90

Clamp
Bolt
±
INTAKE TURBOCHARGER SUB±ASSY(1CD±FTV)
13±17
AVENSIS REPAIR MANUAL (RM1018E)
41.INSTALL INTERCOOLER AIR HOSE
(a)Install the air hose and hose clamps as shown in the il-
lustration.
(b)Tighten the hose clamps as shown in the illustration. Torque: 6.0 N
m (61 kgf
cm, 53 in.
lbf)
(c)Install the air tube No. 1 with the 3 bolts and nut. Torque: 25 N
m (255 kgf
cm, 18 ft
lbf)
42.INSTALL AIR CLEANER ASSY Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)
43.INSTALL VACUUM RESERVOIR SUB±ASSY Torque: 8.3 N
m (85 kgf
cm, 73 in.
lbf)
44.INSTALL ENGINE COVER NO.1
Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
45.ADD ENGINE COOLANT(See page 16±44)
46. CHECK ENGINE OIL LEVEL
47.CHECK FOR ENGINE COOLANT LEAKS(See page 16±44)
48. CHECK FOR ENGINE OIL LEAKS
49.CHECK FOR FUEL LEAKS(See page 11±60)
50. CHECK FOR EXHAUST GAS LEAKS

010B8±08
D25086
WRONG
CORRECT
D25087
Looseness of Crimping
Core Wire
Terminal
Deformation
Pull Lightly 01±32
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
1. BASIC INSPECTION
(a) RESISTANCE MEASURING CONDITION OF ELECTRONIC PARTS
(1) Unless stated, all resistance is measured at an ambient temperature of 20C (68F). As the re-
sistance may be outside the specifications if measured at high temperatures immediately after
the vehicle has been running, measurements should be made when the engine has cooled
down.
(b) HANDLING OF CONNECTOR
(1) When removing the connector with lock, press the
connector in the direction of the engagement and
remove the lock by lightly pressing the lock claw.
(2) When removing the connector, do not hold the har-
ness, but hold the connector.
(3) Before connecting the connector, check that there
is no deformation, damage or missing terminals.
(4) The connector with a lock should be securely con-
nected until it makes a ºclickº sound.
(5) When checking the connector with a Toyota electri-
cal tester, check it from the backside (harness side)
of the connector using a mini test lead.
NOTICE:

As a water proof connector cannot be checked from
the backside, check by connecting the sub±harness.

Do not damage the terminals by moving the inserted
tester needle.
(c) CONNECTOR CHECKING POINTS
(1) Checking when the connector is connected:
By holding the connector, check the inserted condi-
tion and locking efficiency (engaged condition).
(2) Checking when the connector is removed:
Check by lightly pulling the wire harness (missing
terminal, terminal crimping condition, core wire
break).
Check visually for any rust, metal particles, water
and bent terminals (rust, mixing of foreign object,
terminal deformation).
NOTICE:
When testing a gold±plated female terminal, always use a
gold±plated male terminal.

D25088
Same terminal as
a male terminal
D20024
WRONG
CORRECT
D01557
WRONG
Z17004
C
SensorOPEN
1
2B
1
21
21
2A
Fig. 1
ECU
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±33
AVENSIS REPAIR MANUAL (RM1018E)
(3) Checking of the contact pressure of the terminal:
Prepare a spare male terminal.
Insert it into a female terminal, check the engaged
condition and sliding resistance.
(d) REPAIR METHOD OF CONNECTOR TERMINAL
(1) If there is on the contact point, clean the contact
point using an air gun or shop rag. However, never
polish the contact point using sand paper as the
platings may come off.
(2) In case of abnormal contact pressure, replace the
female terminal. However, if a male terminal is gold±
plated (gold color), use gold±plated female terminal
and if it is silver±plated (silver color), use silver±
plated female terminal.
(e) HANDLING OF WIRE HARNESS
(1) When removing the wire harness, check the posi-
tioning of the wiring and clamping before starting
work in order to be able to restore it correctly.
(2) Never twist, pull or loosen the wire harness more
than necessary.
(3) Never allow the wire harness to come into contact
with a high±temperature, rotating, moving, vibrating
or sharp (edge of the panel, tip of the screw, etc.)
part.
(4) When installing parts, never let the wire harness be
interfered with.
(5) Never cut or break the cover of the wire harness. If
one is cut or broken, replace it or securely repair it
with electrical tape.
2. CHECK OPEN CIRCUIT
(a) For the open circuit in the wire harness in Fig. 1, perform
a continuity check in step (b) or a voltage check in step (c)
to locate the section.

Z17005
Fig. 2
Sensor
C
BA
ECU
1
21
22 1
B04722
Fig. 3
Sensor
B2
A
1
21
2
21
C
B1
1
2ECU
Z17007
Fig. 4
Sensor
CBA
1
21
2
2 15V
5V
0V 01±34
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
AVENSIS REPAIR MANUAL (RM1018E)
(b) Check the continuity.
(1) Disconnect connectors A and C and measure the
resistance between them.
Resistance: 1
or less
HINT:
Measure the resistance while lightly shaking the wire harness
vertically and horizontally.
In the case of Fig. 2:
Between terminal 1 of connector A and terminal 1
of connector C
No continuity (open)
Between terminal 2 of connector A and terminal 2
of connector C
Continuity
Therefore, the cause is an open circuit between ter-
minal 1 of connector A and terminal 1 of connector
C.
(2) Disconnect connector B and measure the resis-
tance between the connectors.
In the case of Fig. 3:
Between terminal 1 of connector A and terminal 1
of connector B1
Continuity
Between terminal 1 of connector B2 and terminal 1
of connector C
No continuity (open)
Therefore, the cause is an open circuit between ter-
minal 1 of connector B2 and terminal 1 of connector
C.
(c) Check the voltage.
(1) In a circuit in which voltage is applied (to the ECU
connector terminal), an open circuit can be checked
by conducting a voltage check.
As shown in Fig. 4, with each connector still con-
nected, measure the voltage between the body
ground and terminal 1 of connector A at the ECU 5
V output terminal, terminal 1 of connector B, and
terminal 1 of connector C, in that order.
(2) If the results are:
5 V: Between terminal 1 of connector A and body
ground
5 V: Between terminal 1 of connector B and body
ground
0 V: Between terminal 1 of connector C and body
ground
Therefore, the cause is an open circuit in the wire
harness between terminal 1 of connector B and ter-
minal 1 of connector C.

Z17008
CSHORT
1
2B
1
21
2 A
Fig. 5
Z17009
Fig. 6
Sensor
C
BA
ECU
1
21
22 1
Z17808
Fig. 7
Sensor
B2
A
11 1
C
B1
1ECU
2
222
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±35
AVENSIS REPAIR MANUAL (RM1018E)
3. CHECK SHORT CIRCUIT
(a) If the wire harness is ground shorted as shown in Fig. 5,
locate the section by conducting a continuity check with
the body ground in step (b).
(b) Check the continuity with the body ground.
(1) Disconnect connectors A and C and measure the
resistance between terminals 1 and 2 of connector
A and the body ground.
Resistance: 10 k
or higher
HINT:
Measure the resistance while lightly shaking the wire harness
vertically and horizontally.
In the case of Fig. 6:
Between terminal 1 of connector A and body
ground Continuity (short)
Between terminal 2 of connector A and body
ground No continuity
Therefore, the cause is a short circuit between ter-
minal 1 of connector A and terminal 1 of connector
C.
(2) Disconnect connector B and measure the resis-
tance between terminal 1 of connector A and the
body ground, and terminal 1 of connector B2 and
the body ground.
In the case of Fig. 7:
Between terminal 1 of connector A and body
ground No continuity
Between terminal 1 of connector B2 and body
ground Continuity (short)
Therefore, the cause is a short circuit between ter-
minal 1 of connector B2 and terminal 1 of connector
C.