TOYOTA CAMRY 2000 Service Repair Manual

Page 4171 of 4770

S05042
Bank 1 Sensor 1
Bank 2 Sensor 1+B
HTOhmmeter
+B HTOhmmeter
SF08P±04
± SFI (1MZ±FE)HEATED OXYGEN SENSOR (Bank 1,2 Sensor 1)
SF±71
1570 Author: Date:
HEATED OXYGEN SENSOR (Bank
1,2 Sensor 1)
INSPECTION
Except California A/T:
INSPECT HEATER RESISTANCE OF HEATED OXYGEN
SENSORS (Bank 1 Sensor 1, Bank 2 Sensor 1)
(a) Disconnect the oxygen sensor connector.
(b) Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance:
At 20°C (68°F)11 ± 16 W
At 800°C (1,472°F)23 ± 32 W
If the resistance is not as specified, replace the sensor.
Torque: 44 N´m (450 kgf´cm, 32 ft´lbf)
(c) Reconnect the oxygen sensor connector.

Page 4172 of 4770

S05163
Ohmmeter
+B
HTSF08Q±03
SF±72
± SFI (1MZ±FE)HEATED OXYGEN SENSOR (Bank 1 Sensor 2)
1571 Author: Date:
HEATED OXYGEN SENSOR (Bank
1 Sensor 2)
INSPECTION
INSPECT HEATER RESISTANCE OF HEATED OXYGEN
SENSOR (Bank 1 Sensor 2)
(a) Remove the driver's seat.
(b) Take out the floor carpet.
(c) Disconnect the oxygen sensor connector.
(d) Using an ohmmeter, measure the resistance between the
terminals +B and HT.
Resistance:
At 20°C (68°F)11 ± 16 W
At 800°C (1,472°F)23 ± 32 W
If the resistance is not as specified, replace the sensor.
(e) Reconnect the oxygen sensor connector.
Torque: 44 N´m (450 kgf´cm, 32 ft´lbf)
(f) Reinstall the floor carpet.
(g) Reinstall the driver's seat.

Page 4173 of 4770

SF08R±03
S05450
ECM
ECM Connector
No.2 Instrument
Lower Panel
Under Cover
Cowl Side TrimFront Door Inside Scuff Plate
± SFI (1MZ±FE)ENGINE CONTROL MODULE (ECM)
SF±73
1572 Author: Date:
ENGINE CONTROL MODULE (ECM)
COMPONENTS

Page 4174 of 4770

SF08S±01
SF±74
± SFI (1MZ±FE)ENGINE CONTROL MODULE (ECM)
1573 Author: Date:
INSPECTION
1. REMOVE ECM
2. INSPECT ECM (See page DI±218)
3. REINSTALL ECM

Page 4175 of 4770

S04528
5 mm
Hexagon
Wrench
Clip
SF08T±03
S05358
TOYOTA
Hand±Held Tester
B00623
Sound Scope
Sound Scope California A/T
Except California A/T
± SFI (1MZ±FE)FUEL CUT RPM
SF±75
1574 Author: Date:
FUEL CUT RPM
INSPECTION
1. REMOVE V±BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 2 cap nuts.
(b) Disconnect the 2 clips, and remove the V±bank cover.
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT TOYOTA HAND±HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand±held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand±held tester or OBDII
scan tool operator's manual for further details.
4. INSPECT FUEL CUT OFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return rpm: 1,200 rpm
5. DISCONNECT TOYOTA HAND±HELD TESTER OR
OBDII SCAN TOOL
6. REINSTALL V±BANK COVER
HINT:
For fixing the V±bank cover, push on the cover until a ºclickº is
felt.

Page 4176 of 4770

RS01Y±22
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±1
2146 Author: Date:
SRS AIRBAG
PRECAUTION
NOTICE:
The CAMRY is equipped with SRS, which comprises a driver airbag, front passenger airbag,
and side airbag. Failure to carry out service operations in the correct sequence could cause
the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Fur-
ther, if a mistake is made in servicing the SRS, it is possible that the SRS may fail to operate
when required. Before performing servicing (including removal or installation of parts, inspec-
tion or replacement), be sure to read the following items carefully, then follow the correct proce-
dures described in the repair manual.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most impor-
tant source of information when troubleshooting. When troubleshooting the SRS, always in-
spect the DTCs before disconnecting the battery.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front
passenger airbag assembly, side airbag assembly (TMC made and TMMK made), airbag sensor
assembly, front airbag sensor and side airbag sensor assembly should be inspected.
(See page RS±16, RS±29, RS±41, RS±54, RS±60, RS±65 and RS±70)
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side
airbag assembly, airbag sensor assembly, front airbag sensor or side airbag sensor assembly
in order to reuse it.
If the steering wheel pad, front passenger airbag assembly, side airbag assembly, airbag sen-
sor assembly, front airbag sensor or side airbag sensor assembly has been dropped, or if there
are cracks, dents or other defects in the case, bracket or connector, replace them with new
ones.
Use a volt/ohmmeter with high impedance (10 kW/V minimum) for troubleshooting the system's
electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions on the notices.
After work on the SRS is completed, perform the SRS warning light check (See page DI±626).
If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
CAUTION:
Work must be started 90 seconds after the ignition switch is turned to the ºLOCKº position and
the negative (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source so that if work is started within 90 seconds
from disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)
When the negative (±) terminal cable is disconnected from the battery, the memory of the clock
and audio system will be canceled. So before starting work, make a record of the contents mem-
orized in the audio memory system. When work is finished, reset the audio systems as they
were before and adjust the clock. To avoid erasing the memory in each memory system, never
use a back± up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during
repairs.
Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly,
airbag sensor assembly, front airbag sensor or side airbag sensor assembly directly to hot air
or flames.

Page 4177 of 4770

RS0ET±01
W03512
R09725Spiral Cable
W03511
H01347
H02610
RS±2
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
2147 Author: Date:
OPERATION
1. STEERING WHEEL PAD (with AIRBAG)
The inflater and bag of the SRS are stored in the steering wheel
pad and cannot be disassembled. The inflater contains a squib,
igniter charge, gas generant, etc., and inflates the bag when
instructed by the airbag sensor assembly.
2. SPIRAL CABLE (in COMBINATION SWITCH)
A spiral cable is used as an electrical joint from the vehicle body
side to the steering wheel.
3. FRONT PASSENGER AIRBAG ASSEMBLY
The inflater and bag of the SRS are stored in the front passen-
ger airbag assembly and cannot be disassembled. The inflater
contains a squib, igniter charge and gas generant, etc., and in-
flates the bag when instructed by the airbag sensor assembly.
4. SIDE AIRBAG ASSEMBLY
The inflater and bag of the SRS side airbag are stored in the
side airbag assembly and cannot be disassembled. The inflater
contains a squib, igniter charge and gas generant, etc., and in-
flates the bag when instructed by the side airbag sensor assem-
bly.
5. SEAT BELT PRETENSIONER
The seat belt pretensioner system is a component of the front
seat outer belt. The pretensioner contains a squib, gas gener-
ant, wire, piston, etc., and operates in the event of a frontal colli-
sion.

Page 4178 of 4770

H02309
H02266
H08235
H03284
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±3
2148 Author: Date:
6. SRS WARNING LIGHT
The SRS warning light is located on the combination meter. It
goes on to alert the driver of trouble in the system when a mal-
function is detected in the airbag sensor assembly self±diagno-
sis. In normal operation conditions when the ignition switch is
turned to the ACC or ON position, the light goes on for about 6
seconds and then goes off.
7. AIRBAG SENSOR ASSEMBLY
The airbag sensor assembly is mounted on the floor inside the
lower center finish panel. The airbag sensor assembly consists
of an airbag sensor, safing sensor, diagnosis circuit, ignition
control and drive circuit, etc. It receives signals from the airbag
sensor and judges whether the SRS must be activated or not.
8. FRONT AIRBAG SENSOR
A front airbag sensor is mounted inside each of the side mem-
bers. The sensor unit is a mechanical type. When the sensor
detects deceleration force above a predetermined limit, contact
is made in the sensor, sending a signal to the airbag sensor as-
sembly. The sensor cannot be disassembled.
9. SIDE AIRBAG SENSOR ASSEMBLY
The side airbag sensor assembly is mounted in the LH and RH
center pillars. The side airbag sensor assembly consists of a lat-
eral deceleration sensor, safing sensor and diagnosis circuit,
etc. It receives signals to the airbag sensor assembly to judge
from the side airbag sensors whether the SRS side airbag must
be activated or not.

Page 4179 of 4770

H08316
Side Airbag Assembly (LH)
(Squib) Side Airbag Sensor (LH)Side Airbag Sensor (RH) Side Airbag Assembly (RH)
(Squib)
Seat Belt
Pretensioner (RH)
Airbag Sensor
AssemblyFront Passenger Airbag Assembly (Squib)
Spiral Cable
No.1 J/B 2
37 8
10
11
12
13
1
4
5
6
9
Steering Wheel
Pad (Squib) Front Airbag Sensor (RH)
Front Airbag Sensor (LH)
Seat Belt
Pretensioner (LH) 14
15
16
RS±4
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
2149 Author: Date:
10. TMC made:
SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin±Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
(2)Airbag Activation Prevention MechanismConnectors 1, 2, 3, 4, 5, 7, 8, 9, 15, 16
(3)Electrical Connection Check MechanismConnectors 1, 2, 3
(4)Connector Twin±Lock MechanismConnectors 5, 6, 7

Page 4180 of 4770

H08247
Airbag Sensor
Assembly2
31
Side Airbag Assembly (RH)
(Squib)
Seat Belt
Pretensioner (RH)
Side Airbag Sensor (RH)
Front Passenger Airbag
Assembly (Squib)
Spiral Cable
Steering Wheel
Pad (Squib)
No.1 J / B
Side Airbag Sensor (LH)
Side Airbag Assembly (LH)
(Squib)
4
5
6
7
14
9
10
1112
13
8
15
Seat Belt
Pretensioner (LH)
16
17
18
Front Airbag Sensor (RH)
Front Airbag Sensor (LH)
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±5
2150 Author: Date:
11. TMMK made:
SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin±Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18
(2)Airbag Activation Prevention MechanismConnectors 1, 2, 3, 4, 5, 7, 8, 9, 15, 16, 17, 18
(3)Electrical Connection Check MechanismConnectors 1, 2, 3
(4)Connector Twin±Lock MechanismConnectors 5, 6, 7

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