2001 TOYOTA PRIUS door lock

BODY ELECTRICAL ± ACCESSORIES
Non-Alert State
Alert State
Alert Preparation State
Alarm State
Condition (3) Condition (1)
Condition (5) Condition (2)
Condition (6)
Condition (4)
Condition (5) 186

List of Input / Output Signals 
Terminal
NameOutlineTerminal
NameOutline
DKLDriver's door key lock signalLCTYRear left door courtesy switch status
signal
DKULDriver's door key unlock signalHCTYHood courtesy switch status signal
LSWDDriver's door lock position switch
signalLUGLuggage compartment door courtesy
switch status signal
IGIgnition key switch status signalPKLFront passenger door key lock signal
LSWPFront passenger door lock position
switch signalPKULFront passenger door key unlock
signal
LSRRear left door lock position switch
signalHRLYOutput signal to headlight relay
KSWIgnition key cylinder's key
presence / absence signalTRLYOutput signal to taillight relay
DCTYDriver's door courtesy switch status
signalHROutput signal to vehicle horn relay
PCTYFront passenger door courtesy switch
status signalMPXMultiplex Communication (BEAN)
RCTYRear right door courtesy switch
status signalINDOutput signal to security indicator
2. Operation
Non-Alert State: When the security function is inactive
Without having the ignition key in the ignition key cylinder, if any one of the conditions listed below exists,
the system transfers to the alert preparation state.
Condition (1)
When the doors, engine hood, and luggage compartment door are all closed, the ignition key is used to
lock all doors.
When the doors, engine hood, and luggage compartment door are all closed, the wireless door lock re-
mote control system is used to lock all doors.
When all doors are locked, if any door, engine hood, or luggage compartment door is changed from ªcloseº
to ªopenº, and ªcloseº again, all doors, engine hood, and luggage compartment door will be locked.
Alert Preparation State: a delay time until the alert state
The system transfers to the alert state if the condition (2) listed below is met, and to the non-alert state if one
of the conditions (3) is met.

BODY ELECTRICAL ± ACCESSORIES187
Condition (2)
When the doors, engine hood, and luggage compartment door are all closed and locked, and 30 seconds
have elapsed.
Condition (3)
When one of the doors, engine hood, or luggage compartment door is changed from ªcloseº to ªopenº.
When one of the doors, engine hood, or luggage compartment door is changed from ªlockº to ªunlockº.
When the ignition key is inserted in the ignition key cylinder.
When a terminal is disconnected from the battery and re-connected.
Alert State: a state in which attempted theft can be detected
The system transfers to the alarm state if any one of the conditions (4) listed below is met, or to the non-alert
state if any one of the conditions (5) is met.
Condition (4)
Any door, engine hood, or luggage compartment door is opened.
The ignition key or the wireless door lock remote control system other than the transmitter is used for
unlocking.
The luggage compartment door is opened with something other than the ignition key.
The engine hood is opened.
A terminal is disconnected from the battery and re-connected.
The wiring harness is directly connected as if to turn the ignition switch ON.
Condition (5)
The ignition key is used to unlock the doors or the luggage compartment door.
The transmitter of the wireless door lock remote control system is used to unlock the doors.
The ignition key is inserted in the ignition key cylinder and turned until the ignition switch is ON.
Alarm State: a state in which attempted theft can be detected
When an attempted theft is detected, the system sounds the vehicle's horn and the security horn, flashes
the headlights, taillights, and hazard lights, and illuminates the interior light to alert the people in the area.
If any one of the doors is unlocked, and the ignition key is not inserted in the ignition key cylinder, the
system forcefully locks the doors once.
The system transfers to the alert state if the condition (6) described below is met, or, when the system is
in the alarm state, it transfers to the non-alert state if any one of the conditions (5) described above is met.
At this time, the taillights are illuminated for 2 seconds to inform the driver that an attempted theft has been
detected.
Condition (6)
After approximately 60 seconds of the alarm time have elapsed.

IN05Y±22
± INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN±29
29 Author: Date:
2001 PRIUS (RM778U)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are used in the PRIUS. In general, the ECU controlled system
is considered to be a very intricate system requiring a high level of technical knowledge and expert skill to
troubleshoot. However, the fact is that if you proceed to inspect the circuits one by one, troubleshooting of
these systems is not complex. If you have adequate understanding of the system and a basic knowledge
of electricity, accurate diagnosis and necessary repair can be performed to locate and fix the problem. This
manual is designed through emphasis of the above standpoint to help service technicians perform accurate
and effective troubleshooting, and is compiled for the following major ECU controlled systems:
The troubleshooting procedure and how to make use of it are described on the following pages.
SystemPage
6. EngineDI±1
7. Hybrid Vehicle Control SystemDI±174
8. HV Battery Control SystemDI±312
9. Anti±Lock Brake System With EBD & RBSDI±351
10.Electric Motor Power SteeringDI±452
11. Supplemental Restraint SystemDI±495
12.Cruise Control SystemDI±640
13.Combination Meter SystemDI±662
14.Body Control SystemDI±678
15.Driver Door Control SystemDI±730
16.Multiplex Communication SystemDI±750
17.Navigation SystemDI±789
18.Air Conditioning SystemDI±864
FOR USING OBD II SCAN TOOL OR TOYOTA HAND±HELD TESTER

Before using the scan tool or tester, the scan tool's instruction book or tester's operator manual should
be read thoroughly.

If the scan tool or tester cannot communicate with ECU controlled systems when you have connected
the cable of the scan tool or tester to DLC3, turned the ignition switch ON and operated the scan tool,
there is a problem on the vehicle side or tool side.
(1) If communication is normal when the tool is connected to another vehicle, inspect the diagnosis
data link line (Bus
line) or ECU power circuit of the vehicle.
(2) If communication is still not possible when the tool is connected to another vehicle, the problem
is probably in the tool itself, so perform the Self Test procedures outline in the Tester Operator's
Manual.

MA02E±02
± MAINTENANCEOUTSIDE VEHICLE
MA±1
54 Author: Date:
2001 PRIUS (RM778U)
OUTSIDE VEHICLE
GENERAL MAINTENANCE
These are maintenance and inspection items which are considered to be the owner's responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. TIRES
(a) Check the pressure with a gauge. If necessary, adjust.
(b) Check for cuts, damage or excessive wear.
3. WHEEL NUTS
When checking the tires, check the nuts for looseness or for missing nuts. If necessary, tighten them.
4. TIRE ROTATION
Check the owner's manual supplement in which the maintenance schedule is shown.
5. WINDSHIELD WIPER BLADES
Check for wear or cracks whenever they do not wipe clean. If necessary, replace.
6. FLUID LEAKS
Check underneath for leaking fuel, oil, water or other fluid.
7. DOORS AND ENGINE HOOD
(a) Check that all doors including the trunk lid operate smoothly, and that all latches lock securely.
(b) Check that the engine hood secondary latch secures the hood from opening when the primary latch
is released.

P21235
MA049±01
F12933
F12919
MA±8
± MAINTENANCEBODY
61 Author: Date:
2001 PRIUS (RM778U)
BODY
INSPECTION
1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY
Tighten these parts:

Front seat mount bolts
Torque: 37 N´m (375 kgf´cm, 27 ft´lbf)

Front suspension member±to±body mounting bolts
Torque:
Bolt A: 113 N´m (1,150 kgf´cm, 83 ft´lbf)
Bolt B: 157 N´m (1,600 kgf´cm, 116 ft´lbf)

Rear suspension member±to±body mounting nuts
Torque: 90 N´m (918 kgf´cm, 66 ft´lbf)
2. FINAL INSPECTION
(a) Check the operation of the body parts:

Hood:
Auxiliary catch operate properly
Hood locks securely when closed

Front and rear doors:
Door lock operates properly
Doors close properly

Luggage compartment door:
Door lock operates properly

Seats:
Seat adjusts easily and locks securely in any posi-
tion
Front seat back locks securely in any position
Folding±down rear seat backs lock securely
(b) Road test:

Check the engine and chassis for abnormal noises.

Check that the vehicle does not wander or pull to
one side.

Check that the brake work properly and do not drag.
(c) Be sure to deliver a clean car. especially check:

Steering wheel

Shift lever knob

All switch knobs

Door handles

Seats

PP26E±02
PP±50
± PREPARATIONBODY ELECTRICAL
2001 PRIUS (RM778U)
EQUIPMENT
Voltmeter
Ammeter
Ohmmeter
Test lead
SyphonBrake fluid level warning switch
Bulb (3.4W)Fuel sender gauge, Fuel level warning switch
Dry cell batteryWireless door lock transmitter
Torque wrench
Masking tapeRear window defogger wire
Tin foilRear window defogger wire

SS02V±05
± SERVICE SPECIFICATIONSBODY ELECTRICAL
SS±33
155 Author: Date:
2001 PRIUS (RM778U)
BODY ELECTRICAL
SERVICE DATA
DAYTIME RUNNING RELAY (MAIN) (Wire harness side)
12 ± Ground (Ignition switch OFF)No voltage
12 ± Ground (Ignition switch ON)Battery voltage
9 ± Ground (Engine Running)Battery voltage
3 ± Ground (Constant)Battery voltage
6 ± Ground (Constant)Battery voltage
SPEEDOMETER (ON±VEHICLE)
Standard indication (mph)Allowable range (mph)
2018 ± 22
4038 ± 42
6059 ± 63
8079 ± 83
10099 ± 104
120119 ± 125
Standard indication (km/h)Allowable range (km/h)
2018 ± 22
4038 ± 42
6058 ± 62
8078 ± 82
10097 ± 103
120117 ± 123
140137 ± 143
160157 ± 163
FUEL SENDER GAUGE
Float position mm (in.)Resistance (W)
F: Approx. 25.2 (0.99)Approx. 430
1/2: Approx. 92.6 (3.65)Approx. 1000 ± 2000
E: Approx. 169 (6.65)Approx. 5000
DEFOGER SWITCH (Wire harness side)
1 ± Ground (Ignition switch LOCK or ACC)No voltage
1 ± Ground (Ignition switch ON)Battery voltage
8 ± Ground (Constant)Battery voltage
WIRELESSS DOOR LOCK CONTROL RECEIVER (Wire harness side)
5 ± Ground (Constant)Battery voltage
POWER MIRROR SWITCH (Wire harness side)
8 ± Ground (Ignition switch LOCK)No voltage
8 ± Ground (Ignition switch ACC or ON)Battery voltage
RADIO RECEIVER (Wire harness side)
3 ± Ground (Ignition switch LOCK)No voltage
3 ± Ground (Ignition switch ACC or ON)Battery voltage
4 ± Ground (Constant)Battery voltage
CENTER CLUSTER SWITCH (Wire harness side)
1 ± Ground (Ignition switch ACC or ON)Battery voltage

SS1HM±01
± SERVICE SPECIFICATIONSBODY
SS±35
157 Author: Date:
2001 PRIUS (RM778U)
BODY
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
FRONT BUMPER±±±
Side marker x Bumper1.71715 in.´lbf
HOOD±±±
Hood x Hinge131309
Hood lock x Body8.38574 in.´lbf
FRONT DOOR±±±
Outside view mirror x Door7.88069 in.´lbf
Window regulator arm x Door4.95043 in.´lbf
Window regulator body x Door8.38574 in.´lbf
Door lock x Door Bolt:4.95043 in.´lbf
Door lock x Door Screw:4.95043 in.´lbf
Outside handle x Door5.45548 in.´lbf
Hinge x Body4344032 in.´lbf
Hinge x Door4344032 in.´lbf
Door lock striker x Body2323017 in.´lbf
REAR DOOR±±±
Window regulator x Door5.45548 in.´lbf
Door lock x Door4.95043 in.´lbf
Outside handle x Body5.45548 in.´lbf
Hinge x Body2526019
Hinge x Door3031022
Door lock striker x Body2323017
LUGGAGE COMPARTMENT DOOR AND HINGE±±±
Door lock x Door5.45548 in.´lbf
Hinge x Door8.38574 in.´lbf
Door lock striker x Body5.45548 in.´lbf
FRONT WIPER AND WASHER±±±
Wiper arm x Wiper link2627020
Wiper motor x Wiper link Bolt:5.45548 in.´lbf
Wiper motor x Wiper link Nut:1717513
Wiper link x Outer front cowl top panel7.47565 in.´lbf
Outer front cowl top panel x Body5.45548 in.´lbf
ROOF HEADLINING±±±
Inner rear view mirror x Body2.93026 in.´lbf
INSTRUMENT PANEL±±±
Front passenger airbag assembly x Reinforcement2020415
FRONT SEAT±±±
Seat cushion frame x Body3738027
Seatback assembly x Seat cushion frame4344032
REAR SEAT±±±
Seatback assembly x Body7.98170 in.´lbf