2000 TOYOTA CAMRY coolant

B05939
CO03S±03
S04727
Disconnect
B05940
B05941
Ammeter
Battery
± COOLING (1MZ±FE)ELECTRIC COOLING FAN
CO±25
1633 Author: Date:
ELECTRIC COOLING FAN
ON±VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH LOW
TEMPERATURE (Below 88°C (190°F))
(a) Turn the ignition switch ON.
(b) Check that the cooling fan stops.
If not, check the cooling fan relay and ECT switch, and check
for a separated connector or severed wire between the cooling
fan relay and ECT switch.
(c) Disconnect the No.1 ECT switch connector.
(d) Check that the cooling fan rotates.
If not, check the fuses, engine main relay, cooling fan relay,
cooling fan, and check for a short circuit between the cooling
fan relay and ECT switch.
(e) Reconnect the No.1 ECT switch connector.
2. CHECK COOLING FAN OPERATION WITH HIGH
TEMPERATURE (Above 98°C (208°F))
(a) Start the engine, and raise coolant temperature to above
98°C (208°F).
(b) Check that the cooling fan rotates.
If not, replace the No.1 ECT switch.
3. INSPECT NO.1 COOLING FAN
(a) Disconnect the cooling fan connector.
(b) Connect battery and ammeter to the cooling fan connec-
tor.
(c) Check that the cooling fan rotates smoothly, and check
the reading on the ammeter.
Standard amperage: 8.3 ± 11.3 A at 20°C (68°F)
(d) Reconnect the cooling fan connector.

CO03U±03
B05943
B05944
± COOLING (1MZ±FE)ELECTRIC COOLING FAN
CO±29
1637 Author: Date:
REMOVAL
1. REMOVE NO.1 COOLING FAN
(a) Canada:
Disconnect the relay block (for daytime running light sys-
tem) from the battery hold±down clamp.
(b) Disconnect the cooling fan connector.
(c) Disconnect the No.1 ECT switch wire connector.
(d) Disconnect the No.1 ECT switch wire clamps.
(e) Remove the 2 bolts and cooling fan.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)
2. REMOVE NO.2 COOLING FAN
(a) Drain the engine coolant.
(b) Disconnect the upper radiator hose from the radiator.
(c) Disconnect the cooling fan connector.
(d) Remove the 3 bolts and cooling fan.
Torque: 5.0 N´m (50 kgf´cm, 44 in.´lbf)

CO03Y±04
S04602No.1 ECT Switch
P01924
Ohmmeter
S04601
No.2 ECT
Switch
P06722
Ohmmeter CO±34
± COOLING (1MZ±FE)ENGINE COOLANT TEMPERATURE (ECT) SWITCH
1642 Author: Date:
ENGINE COOLANT
TEMPERATURE (ECT) SWITCH
INSPECTION
1. DRAIN ENGINE COOLANT
2. INSPECT NO.1 ECT SWITCH
(a) Remove the No.1 ECT switch.
(b) Inspect the No.1 ECT switch.
(1) Using an ohmmeter, check that there is no continu-
ity between the terminals when the coolant temper-
ature is above 98°C (208°F).
If there is continuity, replace the switch.
(2) Check that there is continuity, between the termi-
nals when the coolant temperature is below 88°C
(190°F).
If there is no continuity, replace the switch.
(c) Reinstall the No.1 ECT switch.
3. INSPECT NO.2 ECT SWITCH
(a) Remove the No.2 ECT switch.
(b) Inspect the No.2 ECT switch.
(1) Using an ohmmeter, check that there is continuity
between terminals when the coolant temperature is
above 94°C (201°F).
If there is no continuity, replace the switch.
(2) Check that there is no continuity between the termi-
nals when the coolant temperature is below 83°C
(181°F).
If there is continuity, replace the switch.
(c) Reinstall the No.2 ECT switch.

± COOLING (1MZ±FE)ENGINE COOLANT TEMPERATURE (ECT) SWITCH
CO±35
1643 Author: Date:
4. REFILL ENGINE COOLANT
5. START ENGINE AND CHECK FOR COOLANT LEAKS

DI±4
± DIAGNOSTICSENGINE (5S±FE)
239 Author: Date:

The diagnosis system operates in normal mode
during normal vehicle use. It also has a check mode
for technicians to simulate malfunction symptoms
and troubleshoot. Most DTCs use 2 trip detection
logic* to prevent erroneous detection, and ensure
thorough malfunction detection. By switching the
ECM to check mode when troubleshooting, the
technician can cause the MIL to light up for a mal-
function that is only detected once or momentarily.
(TOYOTA hand±held tester only)
(See page DI±3)

*2 trip detection logic: When a malfunction is first
detected, the malfunction is temporarily stored in
the ECM memory.(1st trip)
If the same malfunction is detected again during the second
drive test, this second detection causes the MIL to light up.(2nd
trip) (However, the IG switch must be turned OFF between the
1st trip and the 2nd trip.)

Freeze frame data:
Freeze frame data records the engine condition
when a misfire (DTCs P0300 ~ P0304) or fuel trim
malfunction (DTCs P0171, P0172) or other mal-
function (first malfunction only), is detected.
Because freeze frame data records the engine
conditions (fuel system, calculated load, engine
coolant temperature, fuel trim, engine speed, ve-
hicle speed, etc.) when the malfunction is detected,
when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the en-
gine warmed up or not, the air±fuel ratio lean or rich,
etc. at the time of the malfunction.

Priorities for troubleshooting:
If troubleshooting priorities for multiple DTCs are given in the
applicable DTC chart, these should be followed.
If no instructions are given troubleshoot DTCs according to the
following priorities.
(1) DTCs other than fuel trim malfunction (DTCs
P0171, P0172), EGR (DTCs P0401, P0402), and
misfire (DTCs P0300 ~ P0304).
(2) Fuel trim malfunction (DTCs P0171, P0172), and
EGR (DTCs P0401, P0402).
(3) Misfire (DTCs P0300 ~ P0304).

DI±8
± DIAGNOSTICSENGINE (5S±FE)
243 Author: Date:
4. FAIL±SAFE CHART
If any of the following codes is recorded, the ECM enters fail±safe mode.
DTC No.Fail±Safe OperationFail±Safe Deactivation Conditions
P0105Ignition timing fixed at 5° BTDCReturned to normal condition
P0110Intake air temperature is fixed at 20°C (68°F)Returned to normal condition
P0115Engine coolant temperature is fixed at 80°(176°F)Returned to normal condition
P0120VTA is fixed at 0°
The following condition must be repeated at least 2 times
consecutively
VTA 0.1 V and  0.95 V
P0135
P0141The heater circuit in witch an abnormality is detected is
turned offIgnition switch OFF
P0325Max. timing retardationIgnition switch OFF
P0336Fuel cutReturned to normal condition
P1135The heater circuit in which an abnormality is detected is
turned offIgnition switch OFF
P1300
P1310Fuel cutIGF signal is detected for 2 consecutive ignitions
5. CHECK FOR INTERMITTENT PROBLEMS
TOYOTA HAND±HELD TESTER only:
By putting the vehicle's ECM in check mode, 1 trip detection logic is possible instead of 2 trip detection logic
and sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems.
(1) Clear the DTC (See page DI±3).
(2) Set the check mode (See page DI±3).
(3) Perform a simulation test (See page IN±21).
(4) Check the connector and terminal (See page IN±31).
(5) Handle the connector (See page IN±31).
6. BASIC INSPECTION
When the malfunction code is not confirmed in the DTC check, troubleshooting should be performed in the
order for all possible circuits to be considered as the causes of the problems. In many cases, by carrying
out the basic engine check shown in the following flow chart, the location causing the problem can be found
quickly and efficiently. Therefore, use of this check is essential in engine troubleshooting.
1 Is battery positive voltage 11 V or more when engine is stopped?
NO Charge or replace battery.
YES

DI±14
± DIAGNOSTICSENGINE (5S±FE)
249 Author: Date:
7. ENGINE OPERATING CONDITION
NOTICE:
The values given below for ºNormal Conditionº are representative values, so a vehicle may still be
normal even if its value varies from those listed here. So do not decide whether a part is faulty or
not solely according to the ºNormal Conditionº here.
(a) CARB mandated signals.
TOYOTA hand±held tester displayMeasurement ItemNormal Condition*1
FUEL SYS #1
Fuel System Bank 1
OPEN: Air±fuel ratio feedback stopped
CLOSED: Air±fuel ratio feedback operating
Idling after warming up: CLOSED
CALC LOAD
Calculator Load:
Current intake air volume as a proportion of max.
intake air volumeIdling: 19.7 ~ 50.4 %
Racing without load (2,500rpm): 16.8 ~ 47.4 %
COOLANT TEMP.Engine Coolant Temp. Sensor ValueAfter warming up: 80 ~ 95°C (176 ~ 203°F)
SHORT FT #1Short±term Fuel Trim Bank 10 ± 20 %
LONG FT #1Long±term Fuel Trim Bank 10 ± 20 %
ENGINE SPDEngine SpeedIdling: 650 ~ 750 rpm
VEHICLE SPDVehicle SpeedVehicle Stopped: 0 km/h (0 mph)
IGN ADVANCEIgnition Advance:
Ignition Timing of Cylinder No. 1Idling: BTDC 0 ~ 10°
INTAKE AIRIntake Air Temp. Sensor ValueEquivalent to Ambient Temp.
MAPAbsolute Pressure inside Intake Manifold
Idling: 20 ~ 51 kPa
Racing without load (2,500 rpm):
17 ~ 48 kPa
THROTTLE POS
Voltage Output of Throttle Position Sensor
Calculated as a percentage:
0 V "0%, 5 V "100 %Throttle Fully Closed: 6 ~ 16 %
Throttle Fully Open: 64 ~ 98 %
O2S B1, S1Voltage Output of Heated Oxygen Sensor
Bank 1 Sensor 1Idling: 0.1 ~ 0.9 V (0.56 ~ 0.76 V *2)
O2FT B1, S1
Heated Oxygen Sensor Fuel Trim Bank 1
Sensor 1
(Same as SHORT FT #1)
0 ± 20 %
A/FS B1, S1 *3Voltage Output of A/F SensorIdling: 2.8 ~ 3.8 V
A/FFT B1, S1 *3A/F Sensor Fuel Trim (Same as SHORT FT #1)0 ± 20 %
O2S B1, S2Voltage Output of Heated Oxygen Sensor
Bank 1 Sensor 2Driving at 50 km/h (31 mph): 0.05 ~ 0.95 V
*1: If no conditions are specifically stated for ºldlingº, it means the shift lever is at N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*2: Only for California Specification vehicles, when you use the OBD II scan tool (excluding TOYOTA hand±
held tester).
*3: Only for California Specification vehicles, when you use the TOYOTA hand±held tester.

DI00I±09
DI±16
± DIAGNOSTICSENGINE (5S±FE)
251 Author: Date:
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 check mode, check the circuit for that code listed
in the table below. For details of each code, turn to the page referred to under the ''See Page '' for the respec-
tive ''DTC No.'' in the DTC chart.
SAE Controlled:
DTC No.
(See Page)Detection ItemTrouble AreaMIL*1Memory
P0105
(DI±29)
Manifold Absolute
Pressure/Barometric
Pressure Circuit
MalfunctionOpen or short in manifold absolute pressure sensor circuit
Manifold absolute pressure sensor
ECM

P0106
(DI±33)Manifold Absolute Pressure
Circuit Range/Performance
ProblemManifold absolute pressure sensor
Vacuum line
P0110
(DI±35)Intake Air Temp. Circuit
MalfunctionOpen or short in intake air temp. sensor circuit
Intake air temp. sensor (built into mass air flow meter)
ECM

P0115
(DI±41)Engine Coolant Temp. Circuit
MalfunctionOpen or short in engine coolant temp. sensor circuit
Engine coolant temp. sensor
ECM

P0116
(DI±47)Engine Coolant Temp. Circuit
Range/Performance ProblemEngine coolant temp. sensor
Cooling system
P0120
(DI±49)Throttle/Pedal Position
Sensor/Switch ºAº Circuit
MalfunctionOpen or short in throttle position sensor circuit
Throttle position sensor
ECM

P0121
(DI±54)Throttle/Pedal Position
Sensor/Switch ºAº Circuit
Range/Performance Problem
Throttle position sensor
*2
P0125
(DI±61)
Insufficient Coolant Temp. for
Closed Loop Fuel Control
(Except California Spec.)Open or short in heated oxygen sensor (bank 1 sensor 1)
circuit
Heated oxygen sensor (bank 1 sensor 1)
ECM

*3
P0125
(DI±55)
Insufficient Coolant Temp. for
Closed Loop Fuel Control
(Only for California Spec.)Open or short in A/F sensor circuit
A/F sensor
ECM

*2
P0130
(DI±66)Heated Oxygen Sensor Circuit
Malfunction (Bank 1 Sensor 1)Heated oxygen sensor
Fuel trim malfunction
*2
P0133
(DI±71)
Heated Oxygen Sensor Circuit
Slow Response
(Bank 1 Sensor 1)Heated oxygen sensor
Fuel trim malfunction
*2
P0135
(DI±75)
Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 1)Open or short in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
 ECM

*1: 


MIL lights up
*
2: Except California specification vehicles
*
3: Only for California specification vehicles