2000 TOYOTA CAMRY starter ignition

Diagnosis Inspection (Test Mode)
Compared to the normal mode, the test mode has high sens±
ing ability to detect malfunctions.
It can also detect malfunctions in the starter signal circuit, the
IDL contact signal of the throttle position sensor, air condi±
tioning signal and Park/Neutral Position switch signal.
Furthermore, the same diagnostic items which are detected in
the normal mode can also be detected in the test mode.
DIAGNOSTIC TROUBLE CODE CHECK
1. Initial conditions.
(a) Battery voltage 11 V or more.
(b) Throttle valve fully closed.
(c) Transmission in neutral position.
(d) Air conditioning switched off.
2. Turn ignition switch off.
3. Using SST, connect terminals TE2 and E1 of data link
connector 1 or 2.
SST 09843±18020
4. Turn ignition switch on.
HINT:
wTo confirm that the test mode is operating, check that
the malfunction indicator lamp flashes when the igni±
tion switch is turned to ON.
wIf the malfunction indicator lamp does not flash, pro±
ceed to troubleshooting of the TE2 terminal circuit on
page EG1±430.
5. Start the engine.
6. Simulate the conditions of the malfunction described by
the customer.
7. After the road test, using SST, connect terminals TE1 and
E1 of data link connector 1 or 2.
SST 09843±18020
8. Read the diagnostic trouble code on malfunction indica±
tor lamp on the combination meter (See page EG1±297).
9. After completing the check, disconnect terminals TE1,
TE2 and E1, and turn off the display.
HINT:
wThe test mode will not start if terminals TE2 and E1 are
connected after the ignition switch is turned on.
wWhen vehicle speed is 3 mph (5 km/h) or below,
diagnostic trouble code ª42º (Vehicle speed signal) is
output, but this is not abnormal.
wWhen the engine is not cranked, diagnostic trouble
code ª43º (Starter signal) output, but this is not ab±
normal.
wWhen the automatic transmission shift lever is in the
ªDº, ª2º, ªLº or ªRº shift position, or when the air
conditioning is on or when the accelerator pedal is
depressed, code ª51º (Switch condition signal) is
output, but this is not abnormal.
± 5S±FE ENGINE DIAGNOSIS SYSTEMEG1±298

*5: This indicates items for which ª2 trip detection logicº is used. With this logic, when a logic malfunction is first detected, the
malfunction is temporarily stored in the ECM memory. If the same case is detected again during the second drive test, this
second detection causes the Malfunction Indicator Lamp to light up.
The 2 trip repeats the same mode a 2nd time. (However, the IG switch must be turned OFF between the 1st trip and 2nd
trip),
In the Test Mode, the Malfunction Indicator Lamp lights up the 1st trip a malfunction is detected.wopen in EGR gas temp. sensor circuit
wShort in VSV circuit for EGR
wEGR hose disconnected, valve stuck
wClogged EGR gas passage
wECM
wThrottle position sensor IDL circuit
wAccelerator pedal and cable
wPark/Neutral Position switch circuit
wA/C switch circuit
wECM wOpen or short in starter signal circuit
wOpen or short in ignition switch or starter relay circuit ECM
wOpen or short in knock sensor circuit
wKnock sensor (looseness).
wECMMalfunction
Indicator
Lamp*

Normal
Mode Trouble AreaMemory*
Test
ModeSee page
EG1±390EG1±385
EG1±396EG1±383
N.A.N.A.
N.A.
OFFOFF
± 5S±FE ENGINEDIAGNOSTIC TROUBLE CODE CHARTEG1±307

MATRIX CHART OF PROBLEM SYMPTOMS
When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can
not be confirmed in the basic inspection, then proceed to this step and perform troubleshooting according
to the numbered order given in the table below.
*: Except California specification vehicles.
Park/Neutral position switch circuitManifold absolute pressure sensor circuit
VSV circuit for fuel pressure control
Ignition signal circuit (Spark test)
After acceleration pedal depressed
After acceleration pedal released
Switch condition signal circuit
Muffler explosion (after fire)No initial combustion
Back up power source circuit
Hesitation/Poor accelerationNo complete combustion
ECM power source circuit
Starter and Starter relay
Engine control module
High engine idle speed
Low engine idle speedUnder normal condition
During A/C operationEngine does not crank
A/C cut control circuit Starter signal circuit
Soon after starting
Fuel system circuit
When N to D shiftIncorrect first idle
Poor
Driveability
IAC valve circuit Difficult to
start
Injector circuit
Rough idling
Does not
start
Compression
Suspect area
Cold engine
Ignition coil Engine Stall
EG R system
Hot engine
Poor Idling
Spark plug
A/T faultylG±10,30*
IG±11,30 Distributor
Symptom
ST±19,21
See page
IG±8,28* IG±6,26*
Hunting
Surging
EG1±400
EG1±410 EG1±390
EG1±403
EG1±408
EG1±415
EG1±419EG1±383EG1±372
EG1±428EG1±396
EG1 ±424
AX1±68 EG1±23
IN±36
± 5S±FE ENGINEMATRIX CHART OF PROBLEM SYMPTOMSEG1±327

CIRCUIT DESCRIPTION
When the engine is cranked, the intake air flow is slow, so fuel vaporization is poor. A rich mixture
is therefore necessary in order to achieve good startability. While the engine is being cranked, the
battery positive voltage is applied to terminal STA of the ECM. The starter signal is mainly used to
increase the fuel injection volume for the starting injection control and after±start injection control.
DIAGNOSTIC CHART
HINT: This diagnostic chart is based on the premise that the engine is cranked normally. If the
engine is not cranked, proceed to the matrix chart of problem symptoms on page EG1±327, w
Open or short in starter signal circuit.
wOpen or short in ignition switch or starter
relay circuit.
wECM
Check for open in harness and connector
between ECM and relay.Proceed to next circuit inspection
shown on matrix chart (See page
E±G±327). Diagnostic Trouble Code Detecting Condition
Repair or replace harness or
connector.
WIRING DIAGRAM
No starter signal to ECM.
Check and replace ECM.Check for the test mode.Trouble Area
DTC 43 Starter Signal Circuit
DTC No.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±383

Setting the test mode.
(1) Turn ignition switch OFF.
(2) Connect terminals TE2 and E1 of DLC2.
(3) Turn ignition switch ON.
(Don't start the engine)
(4) Connect terminals TE1 and E1 of DLC2.
Check for open in harness and connector between engine control
module and starter relay (See page IN±31). Check output condition of diagnostic trouble code 43.
Proceed to next circuit inspection shown on
matrix chart (See page EG1±327).
Check and replace engine control module.Repair or replace harness or connector.
INSPECTION PROCEDURE
Check if code ª43º is output by the malfunc-
tion indicator lamp.
Code ª43º is output.
Start the engine.
Check if the code ª43º disappear.
Code ª43º is not output.
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±384

CIRCUIT DESCRIPTION
Fuel pump control
The fuel pump is switched on (low voltage at terminal FC) when STA is on or while the NE signal
is input to the ECM.
In the diagram below, when the engine is cranked, current flows from terminal ST of the ignition
switch to the starter relay coil, the starter relay switches on and current flows to coil L1 of the circuit
opening relay. Thus the circuit opening relay switches on, power is supplied to the fuel pump and the
fuel pump operates.
When the STA signal and NE signal are input to the ECM, Tr is turned ON, current flows to coil L2
of the circuit opening relay, the relay switches on and the fuel pump operates.
While the NE signal is generated (engine running), the ECM keeps Tr ON (circuit opening relay ON)
and the fuel pump also keeps operating.
Fuel System Circuit
± 5S±FE ENGINECIRCUIT INSPECTIONEG1±419

105 BODY ELECTRICALÐACCESSORIES
ACCESSORIES

DESCRIPTION
The new Camry includes the accessory systems shown in the below.
System
Outline
Power Window System
The power window system includes one±touch auto down and key±off opera-
tion functions. The one±touch auto down function automatically opens the
driver 's door window fully. The key±off operation function makes it possible
to operate the power windows for approximately 45 seconds after the igni-
tion key is turned to the ACC or LOCK position, if the front doors are not
opened.
The basic construction and operation of this system are the same as in the
previous model.
Door Lock Control System
This system has a ªkey±linked lock and unlock functionº and a ªkey±confine
prevention functionº. All doors can be locked and unlocked simultaneously
by a key operation at the front right or left foor. (The key needs to be oper-
ated twice to unlock all the doors at the driver's door.) If the door lock opera-
tion is performed when one of the front doors is open and the ignition key is
inserted in the key cylinder, doors are unlocked automatically to prevent the
ignition key from being left inside the vehicle.
The basic construction and operation are the same as in the previous model.
Wireless Door Lock Remote Con-
trol System
A remote control system in which the lock and unlock functions of all doors
and panic alarm function can be controlled by the signals emitted from a
transmitter is adopted. The transmitter is also provided with a 2±step unlock
function to unlock all the doors by pressing the switch twice.
The basic construction and operation are the same as in the '96 Avalon.
However, certain functions have been changed. For details, see page 107.
Theft Deterrent System
When an attempt is made to forcibly enter the vehicle or open the hood or
trunk lid without a key, or when the battery terminals are removed and re-
connected, this system sounds the horn and flashes the headlights and tail-
lights for about 1 minute to alert the owner. At the same time, it locks all the
doors and electronically disconnects the starter.
The basic operation is the same as in the '96 Avalon.
Power Seat
As in the previous model, the front seats are power assisted by electric mo-
tors so that the seat positions can be adjusted easily by a simple switch op-
eration.
The basic construction and operation are the same as in the previous model.

'99camry U
93
Part 1
OPERATION OF
INSTRUMENTS AND
CONTROLSÐ
Chapter 1±6
Ignition switch,
Transmission and
Parking brake

Ignition switch with steering lock

Automatic transmission

Manual transmission

P ar k ing br ak e

Cruise controlºSTARTºÐStarter motor on. The key
will return to the ºONº position when
released.
For starting tips, see Part 3.
ºONºÐEngine on and all accessories
on.
This is the normal driving position.
ºACCºÐAccessories such as the radio
operate, but the engine is off.
If you leave the key in the ºACCº or
ºLOCKº position and open the driver's
door, a buzzer will remind you to remove
the key.
ºLOCKºÐEngine is off and the steering
wheel is locked. The key can be re-
moved only at this position.You must push in the key to turn the key
from ºACCº to the ºLOCKº position. On
vehicles with an automatic transmission,
the selector lever must be put in the ºPº
position before pushing the key.
Vehicles with engine immobiliser systemÐ
Once you remove the key, the engine im-
mobiliser system is automatically set. (See
ºEngine immobiliser systemº in Chapter
1±2.)
When starting the engine, the key may
seem stuck at the ºLOCKº position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
CAUTION
For manual transmission:
Never remove the key when the ve-
hicle is moving, as this will lock the
steering wheel and result in loss of
steering control.
Ignition switch with steering
lock