2000 TOYOTA CAMRY ECU

108BODY ELECTRICALÐACCESSORIES
2. Layout of Functional Parts
The major functional parts of the wireless door lock remote control system are whown below.
3. Construction
Transmitter
The transmitter is a key±holder type, which is
separate from the ignition key. the lock and unlock
functions of all doors can be controlled by operating
the switches on the ransmitter. Also, this transmitter
is equipped with a panic switch which activates the
security alarm of the theft deterrent system.

110BODY ELECTRICALÐACCESSORIES
Panic Alarm Operation
When the ªpanicº switch of the transmitter is pushed, the theft deterrent system sounds the horns and flaashes the
headlights and taillights. To stop the alarm of the theft deterrent system that was triggered through this operation, push
the transmitter's ªunlockº switch or ªpanicº switch again.
Operation Verification Light Function
When the doors are locked by the transmitter switch
operation, the parking light and taillight flashes
once to confirm that the operation has been
completed.
Similarly, the parking light and taillight flashes
twice when the doors are unlocked.
Light Flash Patterns
Transmitter Recognition code Registration Function
As in the '96 Avalon, the recognition code for each transmitter is registered in an EEPROM contained in the wieless
door lock ECU. Up to 2 different recognition codes can be resistered in teh EEPROM. The procedure for registering
a registration code is the same as that used in the '96 Avalon.
For details of the rrecogition code registration procedure, refer to the 1997 Camry Repair Manual (Pub. No.
RM503U).

116BODY ELECTRICALÐACCESSORIES
 CRUISE CONTROL SYSTEM
1. General
Once the system is set to a desired vehicle speed, the engine throttle position is adjusted automatically to maintain
the vehicle speed at that speed without depressing the accelerator pedal.
The basic sonstruction and operation of this system are the same as the previous model. However, on the new model,
the control method for the manual and auto cancel functions have been changed. Also, a new motor type actuator
that is both lightweight and simple in construction has been adopted.
2. Construction and Operation
Actuator
The new Camry has adopted a new motor type actuator. The new motor type actuator consists of a motor, control link
and limit swit h, etc. as shown belwo.
The potentiometer hat measured the opening angle of the control link and transmitted the signals to the cruise control
ECU has been discontinued in the new actuator. The new actuator is equipped it with a compact motor. As a result,
the new actuator is made both lightweight and simple in construction.
Without the potentiometer, the new actuator contnuously regulates the opening angle of the control link.
This is made possible by the ECU, which compares the curent vehiclespeed input with the desired vehicle speed that
is stored in memory, and the result of that comparison is transmitted to the actuator.
Cruise Control ECU
1) Manual Cancel Fucntion
The manual cancel function has been changed as follows:
New
Previous
Transaxle shifted to positions other than ªDº.Transaxle shifted to ªNº position.
ÐPull up the parking brake lever.

117 BODY ELECTRICALÐACCESSORIES
2) Auto Cancel Function
When the vehicle is being driven under cruise control, if any of th econditions listed below is present, the vehicle speed
stored in membor is deleted, the control is lifetd, the current to the actuator is disrupted, and th power indicator ligh
is made to flash. The methods to reactivate the cruise control at that time, in accordance with that particular condition
(malfunction category A or B), are classified in the chart below.
Other auto cancel functions are basically the same as those of the previous model.
Condition
Malfunction CategoryHow to reactivate
Continuous current applied to the motor's accel-
eration output.
The motor did not move.
A
Turn off the ignition switch, and
turn it back on. Then turn on the
main switch.
Excessive current flowed to the motor or
magnetic clutch drive transistor.
Open circuit in magnetic clutch.
The vehicle speed signal is not sent for a
predetermined period of time (approx. 140 msec.)
The vehicle speed is equal to the set speed minus
approximately 16 km/h (10 mph) or below.
Short circuit in the control switch.
An open circuit malfunction of the ªdecreaseº
side of the motor (including open circuit in the
motor).
Abnormal vehicle speed signal.
BTurn the main switch back on.
3) Diagnosis Function
a. Wawrning Indication
The cruise control ECU immediately blinks the power indicator light in the combination meter on and off repeatedly
to alert the driver of a system malfunction.
When the power indicator light is flashing, and the cruise control is released by pressing on the main switch, the power
indicator light will be turned off. When the main switch is turned back on, the power indicator light blinking pattern
as shown on the next page outputs according to the malfunction categories A or B. When a category A malfunction
is occuring, the power indicator ligh will flash again. This indicates that the system cannot operate. But if it is a
category B malfunction, the indicator light will remain on indicating that the system is operating.

POST±WELDING REFINISH-
ING
1. Always check the welded
spots to insure they are
secure.
2. When smoothing out the
weld spots with a disc
grinder, be careful not to
grind off too much as this
would weaken the weld,
INSTALLATION
WELDING PRECAUTIONS
1. The number of welding spots
should be as follows.
Spot weld: 1.3 x No. of
manufacturer's spots.
Plug weld: More than No.
of manufacturer's plugs. PRE±WELDING MEASUREMENTS
Always take measurements
before installing underbody or
engine components to insure
correct assembly. After installation,
confirm proper fit.
WRONG
OKAYWRONG
2. Plug welding should be done
with a MIG (Metal Inert Gas)
welder. Do not gas weld or
braze panels at areas other
than specified.
Safety Glass
Body
Measurement
Diagrams
SPOT WELDING PRECAUTIONS
SPOT WELD LOCATIONS
Try to avoid welding over
previous spots.
Old
Spot
LocationsNew Spot
Locations
1. The shape of the welding
tip point has an effect on
the strength of the weld.
2. Always insure that the
seams and welding tip are
free of paint.
Tip Cutter
INTRODUCTIONIN-12

ABS Antilock Brake System
A/C Air Conditioner
assy assembly
ECT Electronic Controlled Transmission
ECU Electronic Control Unit
e.g. Exempli Gratia (for Example)
Ex. Except
FWD Front Wheel Drive Vehicles
4WD Four Wheel Drive Vehicles
in. inch
LH Left±hand
LHD Left±hand Drive
MIG Metal Inert Gas
M/Y Model Year
PPS Progressive Power Steering
RH Right±hand
RHD Right±hand Drive
SRS Supplemental Restraint System
w/ with
w/o without
ABBREVIATIONS USED IN THIS MANUAL
For convenience, the following abbreviations are used in this
manual.
INTRODUCTIONIN-20

GENERAL INFORMATION
1. BASIC DIMENSIONS
(a) There are two types of dimensions in the diagram.
(Three±dimensional distance)

Straight±line distance between the centers of two
measuring points.
(Two±dimensional distance)

Horizontal distance in forward/rearward between
the centers of two measuring points.

The height from an imaginary standard line.
(b) In cases in which only one dimension is given, left
and right are symmetrical.
(c) The dimensions in the following drawing indicate
actual distance. Therefore, please use the dimen-
sions as a reference.
2. MEASURING
(a) Basically, all measurements are to be done with a
tracking gauge. For portions where it is not possible
to use a tracking gauge, a tape measure should be
used.
(b) Use only a tracking gauge that has no looseness in
the body, measuring plate, or pointers.
HINT:
1. The height of the left and right pointers must be equal.
2. Always calibrate the tracking gauge before measuring or
after adjusting the pointer height.
3. Take care not to drop the tracking gauge or otherwise
shock it.
4. Confirm that the pointers are securely in the holes.
(c) When using a tape measure, avoid twists and
bends in the tape.
(d) When tracking a diagonal measurement from the
front spring support inner hole to the suspension
member upper rear installation hole, measure
along the front spring support panel surface.
Center±to±center
straight±line
distance Three±dimensional
distance
Front Spring Support Inner Hole
Tape Measure
Along Body
Surface
Front Suspension Member Rear Side
Upper Installation HoleMaster Gauge PointerPointer LoosenessBody LoosenessPlate Looseness Two±dimensional
distanceCenter±to±center
Horizontal distance in
forward/rearward
Vertical distance
in lower surface Vertical distance
in center
Imaginary Standard Line
WrongCorrect
Pointer
BODY DIMENSIONSDI-2

CAMRY ± NEW FEATURES
BATT
BATTERY
PS
IMLD
EGR
EVP1
TPC
W
ELS
STP
PTNK
TRC
TXCT
KSW
TC
SIL
EFI MAIN RELAY
+B
EFI ELS2 POWER STEERING OIL
PRESSURE SWITCH
TAILLIGHT & REAR WINDOW
DEFOGGER
STOP LIGHT SWITCH
VAPOR PRESSURE SENSOR
ABS & TRAC ECU*
1
TRANSPONDER KEY
AMPLIFIER*2
UNLOCK WARNING SWITCH*2
DATALINK CONNECTOR 1
DATALINK CONNECTOR 3EGR CONTROL
VSV
EVAP CONTROL
VSV
VAPOR PRESSURE CONTROL
VSV
THEFT DETERRENT INDICATOR
LIGHT*2
MALFUNCTION INDICATOR
LAMP
HTSOXYGEN SENSOR HEATER
CONTROL
HEATED OXYGEN SENSOR
HEATER (Bank 1, Sensor 2)
RXCK
CODE
12
*1: Applicable only to vehicles equipped with the TRAC System.
*
2: Applicable only to vehicles equipped with the Engine Immobiliser System.