2000 TOYOTA CAMRY codes

1
GENERAL 2000 FEATURES
170EG08
VSV
(for Canister
Closed Valve)VSV
(for
EVAP)
Fuel Tank
Purge Line
Fresh Air LineVapor Pressure
SensorVSV
(for Pressure Switching Valve)
Chacoal Canister
Fresh Air Valve
Drain 2
ENGINE
EVAPORATIVE EMISSION CONTROL SYSTEM
The method for detecting evaporative emission leaks has been changed from the previous internal pressure
monitor type to the vacuum type. The vacuum type forcefully introduces the purge vacuum into the entire
system and a leak is detected by monitoring the transitions in pressure. The changes associated with this sys-
tem are as follows:

A VSV for canister closed valve has been added to the fresh air introduction line.

The 3-way VSV for vapor pressure sensor has been discontinued, and a VSV for pressure switching valve
has been added.

The sensing position of the vapor pressure sensor has been changed from the charcoal canister to the fuel
tank in order to enhance the precision of the vapor pressure sensor.

The fresh air valve characteristics of the charcoal canister have been changed.

Diagnostic trouble codes (DTCs) have been added. For details on the DTCs, refer to the each Repair Manu-
al.

1MCV20 L - C E P G K A
12345678
1BASIC MODEL CODESXV20 : With 5S-FE Engine
SXV23 : With 5S-FNE Engine
MCV20 : With 1MZ-FE Engine
2STEERING WHEEL POSITIONL : Left-Hand Drive
4BODY TYPEE : 4-Door Sedan
5GEAR SHIFT TYPEM : 5-Speed Manual, Floor
P : 4-Speed Automatic, Floor
6GRADED : CE
N: LE
G: XLE
8DESTINATIONA : U.S.A.
K : Canada
3MODEL NAMEA : Camry (TMC*1 Made)
C : Camry (TMMK*2 Made)
7ENGINE SPECIFICATIONK : DOHC and SFI
C : CNG and DOHC
CAMRY - MODEL CODE & MODEL LINE-UP3
MODEL CODE
*1: TMC (Toyota Motor Corporation)
*
2: TMMK (Toyota Motor Manufacturing Kentucky, Inc.)
MODEL LINE-UP
DES-BODYTRANSAXLEDES-
TINA-ENGINEBODY
TYPEGRADE5-Speed Manual4-Speed Automatic
TIONTYPES51E153A140EA541E
CESXV20L-
CEMDKASXV20L-
CEPDKA
5S-FELESXV20L-
A(C)EPNKA
USA
XLESXV20L-
A(C)EPGKA
U.S.A.
1MZ FE
LEMCV20L-
CEMNKAMCV20L-
A(C)EPNKA
1MZ-FE
4-DoorXLEMCV20L-
A(C)EPGKA
5S-FNE
4 Door
SedanLESXV23L-
AEPNCA
5S FE
CESXV20L-
AEMDKKSXV20L-
AEPDKK
Canada
5S-FE
LESXV20L-
AEPNKK
Canada
1MZ FE
CEMCV20L-
AEPDKK
1MZ-FE
XLEMCV20L-
AEPGKK

ELECTRONIC CONTROL SYSTEM
The CAMRY 5S±FE engine is equipped with a TOYOTA Computer Controlled System (TCCS)
which centrally controls the MFI/SFI, ESA, IAC diagnosis systems etc. by means of an Engine
Control Module (ECM±formerly MFI/SFI computer) employing a microcomputer.
The ECM controls the following functions:
1. Multiport Fuel Injection (MFI)/Sequential Multiport Fuel Injection (SFI)
The ECM receives signals from various sensors indicating changing engine operation conditions
such as:
Intake manifold pressure
Intake air temperature
Engine coolant temperature
Engine speed
Throttle valve opening angle
Exhaust oxygen content etc.
The signals are utilized by the ECM to determine the injection duration necessary for an optimum
air±fuel ratio.
2. Electronic Spark Advance (ESA)
The ECM is programmed with data for optimum ignition timing under all operating conditions.
Using data provided by sensors which monitor various engine functions (RPM, engine coolant
temperature, etc.), the microcomputer (ECM) triggers the spark at precisely the right instant.
3. Idle Air Control (IAC)
The ECM is programmed with target idling speed values to respond to different engine conditions
(engine coolant temperature, air conditioning ON/OFF, etc.). Sensors transmit signals to the ECM
which controls the flow of air through the bypass of the throttle valve and adjusts idle speed to
the target value.
4. Diagnosis
The ECM detects any malfunctions and abnormalities in the sensor network and lights a
malfunction indicator lamp in the combination meter. At the same time, trouble is identified and
a diagnostic trouble code is recorded by the EC
5. The diagnostic trouble code can be read by the
number of blinks of the malfunction indicator lamp when terminals TE1 and E1 are connected.
The diagnostic trouble codes are referred to in later page. (See page EG1±300)
Fail±Safe Function
In the event of the sensor malfunction, a back±up circuit will take over to provide minimal
driveability, and the malfunction indicator lamp will illuminate. The MFI (Multiport Fuel Injection)/SFI (Sequential Multiport Fuel Injection) system is composed
of 3 basic sub±systems: Fuel, Air Induction and Electronic Control Systems.
FUEL SYSTEM
Fuel is supplied under constant pressure to the MFI/SFI injectors by an electric fuel pump. The
injectors inject a metered quantity of fuel into the intake port in accordance with signals from the
ECM (Engine Control Module).
AIR INDUCTION SYSTEM
The air induction system provides sufficient air for engine operation.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±166

OXYGEN SENSOR
OXYGEN SENSOR INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
2. INSPECT FEEDBACK VOLTAGE
Connect the positive (+) probe of a voltmeter to
terminal VF1 of the data link connector 1 and nega±
tive (±) probe to terminal E1. Perform the test as
follows:
Using SST, connect terminals TE1 and E1 of the data link
connector 1.
SST 09843±18020
And maintain engine speed at 2,500 rpm.
Warm up the oxygen sensor with the engine at 2,500 rpm
for approx. 90 seconds. And maintain engine speed at
2,500 rpm.Warm up the oxygen sensor with the engine at 2,500 rpm
for approx. 90 seconds.
CONTINUED ON PAGE EG1±232
Disconnect terminals TE1 and E1 of the data link
connector 1. And maintain engine speed at 2,500 rpm. Check the number of times the voltmeter needle fluctuates
in 10 seconds.Zero again After replacing
1 the oxygen sensor
Check the number of times the voltmeter needle fluctuates in 10 seconds.
Read and record diagnostic trouble codes. (See page EG1±297)
Malfunction code(s)
(Ex. code Nos. 21, 25 and 26) Measure voltage between terminals VF1 and E1.
Repair the relevant diagnostic trouble code.
Normal code, code
Nos. 21, 25 and 26Replace the ECM.
Less than 8 timesLess than 8 times
8 times or more
More than 0 V8 times
or more
NormalZero
Zero
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±231

Disconnect the engine coolant temp. sensor connector and
connect resistor with a resistance of 4 ± 8 k

or send an
equivalent simulation signal.
Warm up the oxygen sensor with the engine at 2,500 rpm for
approx. 90 seconds. And maintain engine at 2,500 rpm.Disconnect terminals TE1 and E1 of the data link connector 1.
And maintain engine at 2,500 rpm.
CONTINUED FROM PAGE EG1±231
Read and record diagnostic trouble codes. (See page
EG1±297)
Connect terminals TE1 and E1 of the data link connector 1.Malfunction code(s)
(Ex. code Nos. 21, 25 and 26)
Measure voltage between terminals VF1 and E1.
Measure voltage between terminals VF1 and E1, Measure voltage between terminals VF1 and E1.Repair the relevant diagnostic trouble code.
Normal code, code Nos.
21, 25 and 26
Replace the oxygen sensor. Disconnect the PCV hose.
Repair (Over Lean) Repair (Over rich)More than 0 V
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±232

DIAGNOSIS SYSTEM
DESCRIPTION
The ECM contains a built±in self±diagnosis system by which
troubles with the engine signal network are detected and a
Malfunction indicator lamp on the instrument panel lights up.
By analyzing various signals as shown in the later table (See
page EG1±300) the Engine Control Module (ECM) detects
system malfunctions relating to the sensors or actuators.
In the normal mode, the self±diagnosis system monitors 14
items, indicated by code No. as shown in EG1±300. A mal-
function indicator lamp informs the driver that a malfunction
has been detected. The light goes off automatically when the
malfunction has been repaired. But the diagnostic trouble
code(s) remains stored in the ECM memory (except for code
Nos. 16). The ECM stores the code(s) until it is cleared by
removing the EFI fuse with the ignition switch off.
The diagnostic trouble code can be read by the number of
blinks of the malfunction indicator lamp when TE1 and E1
terminals on the data link connector 1 or 2 are connected.
When 2 or more codes are indicated, the lowest number
(code) will appear first.
In the test mode, 9 items, indicated by code No. as shown in
EG1±300 are monitored. If a malfunction is detected in any
one of the systems indicated by code Nos. 13, 22, 24, 25, 26,
27, 31, 41 and 71 the ECM lights the malfunction indicator
lamp to warn the technician that malfunction has been de-
tected. In this case, TE2 and E1 terminals on the data link
connector 1 or 2 should be connected as shown later. (See
page EG1±298).
In the test mode, even if the malfunction is corrected, the
malfunction code is stored in the ECM memory even when
the ignition switch is off (except code Nos. 43 and 51). This
also applies in the normal mode. The diagnostic mode (nor-
mal or test) and the output of the malfunction indicator lamp
can be selected by connecting the TE1, TE2 and E1 termi-
nals on the data link connector 1 or 2, as shown later.
A test mode function has been added to the functions of the
self±diagnostic system of the normal mode for the purpose of
detecting malfunctions such as poor contact, which are diffi-
cult to detect in the normal mode. This function fills up the
self±diagnosis system. The test mode can be implemented
by the technician following the appropriate procedures of
check terminal connection and operation described later.
(See page
EG1±298)
± 5S±FE ENGINEDIAGNOSIS SYSTEMEG1±296

Diagnosis Inspection (Normal Mode)
MALFUNCTION INDICATOR LAMP CHECK
1. The Malfunction indicator lamp will come on when the
ignition switch is turned ON and the engine is not run±
ning.
HINT: If the malfunction indicator lamp does not light
up, proceed to troubleshooting of the combination meter
(See page BE±64).
2. When the engine is started, the malfunction indicator
lamp should go off.
If the light remains on, the diagnosis system has detected
a malfunction or abnormality in the system.
DIAGNOSTIC TROUBLE CODE CHECK
1. Turn ignition switch on.
2. Using SST, connect terminals between TE1 and E1 of
data link connector 1 or 2.
SST 09843±18020
As an example, the blinking patterns for codes;normal,
12 and 31 are as shown on the illustration.
4. Check the details of the malfunction using the diagnostic
trouble code table on page EG1±300.
5. After completing the check, disconnect terminals TE1
and E1, and turn off the display.
HINT: I n the event of 2 or more malfunction codes,
indication will begin from the smaller numbered code
and continue in order to the larger.3. Read the diagnostic trouble code from malfunction indi±
cator lamp.
HINT: If a diagnostic trouble code is not output, check
the TE1 terminal circuit (See page EG1±430).
± 5S±FE ENGINEDIAGNOSIS SYSTEMEG1±297

ECM DATA MONITOR USING TOYOTA
HAND±HELD TESTER
1. Hook up the TOYOTA hand±held tester to the D LC2.
2. Monitor the ECM data by following the prompts on the
tester screen.
HINT: TOYOTA hand±held tester has a ªSnapshotº
function which records the monitored data.
Please refer to the TOYOTA hand±held tester operator's
manual for further details.
ECM TERMINAL VALUES MEASUREMENT
USING TOYOTA BREAK±OUT±BOX AND
TOYOTA HAND±HELD TESTER
1. Hook up the TOYOTA break±out±box and TOYOTA
hand±held tester to the vehicle.
2. Read the ECM input/output values by following the
prompts on the tester screen.
HINT: TOYOTA hand±held tester has ªSnapshotº func±
tion. This records the measured values and is effective in
the diagnosis of intermittent problems.
Please refer to the TOYOTA hand±held tester/Toyota
break±out±box operator's manual for further details.
DIAGNOSTIC TROUBLE CODE CLEARANCE
1. After repair of the trouble areas, the diagnostic trouble
code retained in the ECM memory must be cleared out by
removing the E F I fuse (15A) from J/13 No. 2 for 10 seconds or
more, with the ignition switch OFF.
HINT:
wCancellation can also be done by removing the battery
negative (±) terminal, but in this case, other memory
systems (clock, etc.) will also be cancelled out.
wIf it is necessary to work on engine components requir±
ing removal of the battery terminal, a check must first
be made to see if a diagnostic trouble code has been
recorded.
2. After cancellation, road test the vehicle to check that a
normal code is now read on the malfunction indicator
lamp.
If the same diagnostic trouble code appears, it indicates
that the trouble area has not been repaired thoroughly.
DIAGNOSTIC TROUBLE CODE CHECK
USING TOYOTA HAND±HELD TESTER
1. Hook up the TOYOTA hand±held tester to the DLC2.
2. Read the diagnostic trouble codes by following the
prompts on the tester screen.
Please refer to the TOYOTA hand±held tester operator's
manual for further details.
± 5S±FE ENGINEDIAGNOSIS SYSTEMEG1±299