TOYOTA PRIUS 2001 Service Repair Manual

Door
Indicator
Alarming output
System condition
Armed state Alarm
sounding Entry delay time Close
Open
ON
OFF
ON
OFF BE±72
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
2001 PRIUS (RM778U)
HINT:
In armed state either closed door is opened, entry delay occurs.
(15 secs.)
During this time, the mode transfers to disarmed state when the
condition described above * is met.
When the condition is not met, the system judges theft occurs,
the mode transfers to alarm sounding.

± BODY ELECTRICALTHEFT DETERRENT SYSTEM
BE±73
2001 PRIUS (RM778U)
Indicator light output:
ConditionIndicator light
Disarmed stateOFF
Arming preparationON
Armed state
(Entry delay time)OFF
(ON)
Alarm soundingON
HINT:
Even in disarmed state, the indicator light flash. (Due to the sig-
nal output form immobilizer system). The indicator always
flashes receiving the signal from the immobilizer system at any
time in the arming condition.
Flashing frequency:
0.2 seconds (ON)
1.8 seconds (OFF)
(a) Transfer to active mode:
In each passive mode, when ºdisarmed state of active
mode " arming preparation transfer conditionº is met, the
active mode transfers to each condition. In this case, ac-
tive mode continues till disarmed state.
Passive mode when transfer condition is
met.Active mode transfer condition
Disarmed stateArming preparation condition
Arming preparation conditionArming preparation condition
Armed state
(During entry delay time)Arming condition
(After alarming time has elapsed, arming
condition)
Alarm soundingAfter alarming time has elapsed, arming
condition
(b) Answer back:
The hazard lights flush as answer back under the follow-
ing conditions.
(1) When the system is set.
When arming preparation is set from disarmed state
using the wireless door lock, the hazard lights flush
once.
(2) When the system is released.
When disarmed state is set from either arming prep-
aration, armed state or alarm sounding using the
wireless door lock, the hazard lights flush twice.

 No key in ignition key cylinder.
 All doors and luggage compartment closed
 All doors unlocked
 Engine hood open
Lock and unlock by or remote control 3
times.
Lock and unlock the driver's door knob 3
times.
Open the driver's door.
After 2 sec., forced lock functions once.
Unlock the driver's door knob.
Close and open the driver's door 2 times.
Lock and unlock the driver's door knob once.
Afer 2 sec., forced lock functions once.
System without passive mode is set.System with passive mode is set.
Within
30 secs.
Within
20 secs.
HINT:

Initially (when shipping), system without passive mode is set..

Any input or output other than the above shall be regarded as invalid.(Start again from the beginning).
Input to the vehicle
Output from the vehicle
Close and open the driver's door 3, 4 or 5
times.
Lock and unlock the driver's door knob once.
After 2 sec., forced lock functions once.
Within
2 secs.
Within
2 secs. BE±74
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
2001 PRIUS (RM778U)
4. CHANGING METHOD OF PASSIVE MODE
(ON or OFF)

N09348
ECUTOYOTA hand±held tester
TOYOTA Break±out±box
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
BE±75
2001 PRIUS (RM778U)
5. ECU TERMINAL VALUES MEASUREMENT BY USING
TOYOTA BREAK±OUT±BOX AND TOYOTA HAND±
HELD TESTER
(a) Hook up the TOYOTA break±out±box and TOYOTA
hand±held tester to the vehicle.
(b) Read the ECU input/output values by following the
prompts on the tester screen.
(c) Please refer to the TOYOTA hand±held tester has a
ºSnapshotº function. This records the measured data and
is effective in the diagnosis of intermittent problems.

BE0IM±13
Make the vehicle in the initialized condition:
The initialized condition is the condition when the following conditions are satisfied.
(1) Key plate has not been inserted in the ignition key cylinder.
(2) All the doors are closed. (Door warning light is off.)
(3) All the doors are locked.
Under the standard operation, when repeating the operation of UNLOCK and LOCK switch
3 times or more alternately, check the UNLOCK±LOCK operation from 3rd time onward.

Following procedures are standard operation.
(1) Keep about 1 M away to the right direction from the outside handle of a driver's seat.
(2) Face the transmitter toward the vehicle and press one of transmitter switches for about 1 sec.
Normal
<Reference>

Operative distance may differ according to
an operator, the way of holding the transmitter
or position.

Because weak electric wave is used, when
there is strong wave or noise in the used
frequency ,operation distance might be
shortened.
NoYe s
Only wireless function (Remote control) will not operate.
(If a new transmitter or a transmitter of the same type that works properly with the vehicle is not available.)
Basic function check: BE±78
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
2001 PRIUS (RM778U)
PRE±CHECK

Replace the transmitter battery with a new or normal
one and check UNLOCK±LOCK function works under
the standard operation.
<Reference>

The battery should be replaced by only the shops with
sufficient skill as new normal battery is necessary.

Battery quality can be judged by checking the rem-
nant volume of the battery.
Ye s
Battery faulty.
No
Make the vehicle be in the initialized condition.
Enter into the self diagnostic mode.
If operating door control receiver in the order of 1 through 2, the mode turns to diagnostic mode.
(1) Insert the key plate in the ignition key cylinder and pull out, then insert it again and turn ignition switch
OFF " ON " OFF once within 5 seconds after pulling out.
(2) After completing the procedure within 30 seconds, turn the ignition switch OFF " ON " OFF 9 times.
HINT:
In the case that either of (1) and (2) conditions is not satisfied, transfer to normal mode.
<Reference>
When completing self diagnostic mode, turn the ignition switch ON.
LOCK and UNLOCK operation is not performed under the self diagnostic mode.
1st time9th times ON
OFF
Transmitter battery check:
Inspection start by using self diagnostic mode:
within.
30 secs.within.
5 secs.
12 910
Key plate
not inserted Key plate
inserted
Ignition
switch
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±79
2001 PRIUS (RM778U)

Diagnostic mode operation confirmation:
Check the taillight lights up soon after the input opera-
tion of self diagnostic mode.
Ignition Switch OFF
0.2 sec. 0.5 sec.
OFF ON Taillight
<Reference>

Taillight light up should be maximum despite the con-
troller.Is the method to input the diagnostic mode
correct?
Is the function of operation confirmation
taillight normal?
Taillight faulty.
No
No
Ye s
Confirmation of diagnostic mode:
Check taillight light up when pressing on each switch of
transmitter.
(1) Received normal wave of LOCK switch.
NoYe s Ye s
No response
(2) Received normal wave of UNLOCK switch.
(3) Received normal wave of PANIC switch.
(4) Compatibility of the recognition code or out from
synchronization of rolling code.*.
OFF ON
OFF ON
OFF ON
OFF ON
0.2 sec. 0.5 sec.
0.2 sec.
0.2 sec.0.5 sec.
0.5 sec. 0.5 sec.
Transmitter faulty or wireless door lock re-
ceiver faulty.
<Reference>

Use another (normal) transmitter and
check with the diagnostic mode and in the
case that the check result shows the trans-
mitter faulty, it can be judged that wireless
door lock receiver is normal.
While receiving
In case of taillight
outputs of (4) In case of taillight
outputs from (1) ± (3)
Not enter in
diagnostic
mode
BE±80
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
2001 PRIUS (RM778U)

Transmitter faulty or wireless door lock receiver
faulty.
<Reference>
Check the wave reaching range with another
transmitter (normal). When the range is normal,
transmitter defection is detected, the range is
not normal, wireless door lock receiver defection
is defected.
The wave reaching range check:
Is the wave reaching range normal?
(1 M area around vehicle)
(While the transmitting switch is pressed,
(approx. 20 secs.) the taillight continuously.
After 20 secs., repress the switch again.)
NoOther body control system faulty.
(Transmitter and receiver are normal.)
Ye s
No
Wireless door control receiver check:
Ye sWire harness faulty (short circuit).
Ye s
RDA terminal open circuit.
No
Check RDA terminal circuit.
Check that the voltage of RDA is about 6 ± 7 V
(when the transmitter is ON).
No
When pressing each switch of
the new or normal transmitter
used in the same type vehicle,
check that all taillights chirps
in the same way.
Transmitter faulty.
Ye s
Check that continuity exists between the receiver
terminal 3 (PRG) and body ECU terminal B9
(PRG).
Check that continuity exists between the receiver
terminal 2 (RDA) and body ECU terminal B10
(RDA).
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±81
2001 PRIUS (RM778U)

BE±82
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
2001 PRIUS (RM778U)
DOME fuse or wire harness faulty.
Ye s
+B power source check:
Check that there is constantly 10 to 14 V voltage at the
connector terminal 5 (+B) of wireless door control
receiver.
No
Wire harness faulty.
Body ground open and contact error.
Ye s
Body ground check:
Check that continuity exists between the connector
terminal 1 (GND) of the wireless door control receiver
and body ground.
No
Wireless door control receiver faulty.

BE0OJ±12
I12019
Dry cell battery (1.5 V x 2)
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±83
2001 PRIUS (RM778U)
INSPECTION
1. INSPECT WIRELESS DOOR LOCK TRANSMITTER
OPERATION
HINT:
Refer to ºWireless door lock control receiver and transmitter re-
placementº on page BE±87.
(a) Using a screwdriver, remove and cover.
(b) Remove the battery (lithium battery).
(c) Install a new or normal battery (lithium battery).
HINT:
When a new or normal battery can not be obtained, connect 2
new 1.5 V batteries in series, connect the battery (+) to the bat-
tery receptacle side terminal and battery (±) to the bottom termi-
nal, then apply 3 V voltage to the transmitter.
(d) In the location where is approx. 1 M away from driver's
outside handle in the right direction, and check the trans-
mitter operation when pressing transmission switch on
the surface of the transmitter body.
Standard:
Remote control of vehicle door lock can be operated.
HINT:

The minimum operation distance differs according to op-
erator, the way of holding, and location.

As weak wave is used, operation distance might be short-
ened when noise is detected in strong wave or used fre-
quency.
(e) Install the battery (lithium battery).
(f) Install a cover so that rubber cover is not distorted or
slipped off.