change time TOYOTA PRIUS 2001 Service Owner's Guide

F12411
LOCKON
PLG PL
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM WITH EBD & RBS
DI±433
2001 PRIUS (RM778U)
4 Check for open circuit in harness and connector between pressure switch (PH)
and brake ECU (See page IN±41).
NG Repair or replace harness or connector.
OK
Replace hydraulic brake booster assembly.
5 Check pressure switch (PL) operation.
PREPARATION:
(a) Turn the motor switch OFF, and depress the brake pedal
40 times or more.
HINT:
When a pressure in power supply system is released, reaction
force becomes heavy and stroke becomes shorter.
(b) Install the LSPV gauge (SST) to the rear wheel cylinder
and bleed air.
SST 09709 ±29018
CHECK:
While checking the resistance between terminals PL and PLG
of hydraulic brake booster, depress the brake pedal with force
of more than 343 N (35 kgf, 77 lbf) and turn the ignition switch
ON, then check the rear wheel cylinder pressure when the re-
sistance changes from 5.7 kW to 1.0 kW.
OK:
9,022 ± 15,102 kpa (92 ± 154 kgf´cm2, 1,308 ± 2,190 psi)
CHECK:
While checking the resistance between terminals PL and PLG
of hydraulic brake booster, depress the brake pedal changing
the force in the range of 197 N (20 kgf, 44 lbf) to 343 N (35 kgf,
77 lbf) and check the rear wheel cylinder pressure when resis-
tance changes from 1.0 kW to 5.7 kW.
OK:
8,532 ± 13,337 kpa (87 ± 136 kgf´cm2, 1,237 ± 1,934 psi)
HINT:
After inspection, connect the connector, fill brake reservoir with
brake fluid and clear the DTC (See page DI±353).
NG Replace hydraulic brake booster assembly.
OK

I17096
Navigation Check
screen switch
Time data
Position data
Measurement Status Satellite
Information
DI±804
± DIAGNOSTICSNAVIGATION SYSTEM
2001 PRIUS (RM778U)
(b) GPS INFORMATION MODE SCREEN
(1) This screen displays GPS related data.
HINT:
Data are updated every 1 sec.
(2) Satellite Information
The angle of elevation of relevant satellite, azimuth signal level, and receiving condition of sig-
nals are displayed.
HINT:
The reception status shows receiving.
ºTº: means in operation but measurement is not being used for positioning.
ºPº: means measurement is being used for positioning.
º±º: means no data can be received.
Display area for up to 8 satellites is ensured.
Data shall be updated corresponding to change of information.
(3) Time data: The time data obtained from a GPS receiver is displayed in month, day, year, hour
and minute.
(4) The displayed time is Greenwich Mean Time.
(5) Position Data: The latitude and longitude of the current location are displayed in degree and min-
ute.
(6) Measurement Status is displayed in the following 5 items.
2D: 2 dimensions.
3D: 3 dimensions.
NG: GPS information cannot be used.
error: Receiving error occurs.
±: Other than the above.
(7) Navigation Check Screen Switch
Pressing this switch activates the Navigation Check screen.

I18151
Blower Switch
Max. Cool e
20.5 (66)
Step
No.Temp. setting
°C (°F)Blower Level Air Mix Damper
R/F
(102.0 %)ON Air Inlet
DamperAir Outlet
DamperCompressor
1
2
3
4
521.0 e 23.5
(67 e72)
24.0 e 26.0
(73 e77)
26.5 e 29.0
(78 e83)
29.5 (84)
eMax. Warm4
" "
17
31
"
"
50 %
(Cool/Warm)±10 %
(Cool)
100 %
(Warm)REC
(±1 %)
R/F
(82.0 %)
FRS
(110.0 %)
FRS
(110.0 %) DEF
(110 %)FOOT
(50 %)
F/D
(90 %) B/L
(15 %) FACE
(±10 %)
OFF
" "
"
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±873
2001 PRIUS (RM778U)
5. ACTUATOR CHECK
(a) Actuator check mode is started at the same time with DTC
check mode.
(b) Check visually on by hand that the air flow, amount of
damper operating and operation of the compressor
changes according to the set temperature of the A/C con-
trol panel, as shown in the chart.
HINT:
To cancel the check mode, turn blower switch from AUTO to ex-
cept AUTO.

I18165
SGTP
TPON
(+)(±)
± DIAGNOSTICSAIR CONDITIONING SYSTEM
DI±903
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check voltage between terminals TP and SGTP of A/C amplifier connector.
PREPARATION:
(a) Remove center cluster module control with connectors
still connected.
(b) Turn ignition switch ON.
CHECK:
Change the set temperature to activate the air mix damper, and
measure the voltage between terminals TP and SGTP of A/C
amplifier connector each time when the set temperature is
changed.
OK:
Set TemperatureVoltage
Max. COOL3.5 ± 4.5 V
Max. WARM0.5 ± 1.8 V
HINT:
As the set temperature increases, the voltage decreases grad-
ually without interruption.
NG Go to step 2.
OK
Proceed to next circuit inspection shown on problem symptoms table (See page DI±874).
However, if DTC 31 or 41 is displayed, check and replace A/C amplifier.

I18205
I18205
± BODY ELECTRICALCOMBINATION METER
BE±43
2001 PRIUS (RM778U) A22 ± Ground
(IG ± Body ground)
Ignition switch OFF or ONBelow 1V or 10 ± 14 V
B1 ± Ground
(ROUT ± Body ground)Ignition switch ON and shift lever position is ºRº
or except ºRºBelow 1V or 10 ± 14 V
B2 ± Ground
(MPX+ ± Body ground)Ignition switch ONPulse generation
B3 ± Ground
(MPX ± Body ground)Ignition switch ONPulse generation
B5 ± Ground
(ACC ± Body ground)Ignition switch ACC10 ± 14 V
2. INSPECT SPEEDOMETER ON±VEHICLE
Using a speedometer tester, inspect the speedometer for allow-
able indication error and check the operation of the odometer.
HINT:
Tire wear and tire over or under inflation will increase the indica-
tion error.
If error is excessive, replace the speedometer.
(mph)(km/h)
Standard indication Allowable rangeStandard indication Allowable range
20 18± 22 20 18 ± 22
40 38 ± 42 40 38 ± 42
60 59 ± 63 60 58 ± 62
80 79 ± 83 80 78 ± 82
100 99 ± 104 100 97 ± 103
120 119 ± 125 120 117 ± 123
140 137 ± 143
160 157 ± 163
3. INSPECT INPUT SPEED SIGNAL
While driving the vehicle at 10 km/h, measure the voltage be-
tween connector terminals A9 and A14 of the combination me-
ter.
Standard: Change between Hi and LO is repeated 7
time for 1 second.
HINT:
Check it the ignition switch ON and the connector connected.
4. INSPECT OUTPUT SPEED SIGNAL
While driving the vehicle at 10 km/h, measure the voltage be-
tween connector terminal A13 and A14 of the combination me-
ter.
Standard: Change between Hi and LO is repeated 7
time for 1 second.
HINT:
Check it the ignition switch ON and the connector connected.

BE±90
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
2001 PRIUS (RM778U)
Within
3 secs.
Turn the ignition switch from ON to LOCK at approx. 1 sec. interval 1 to 5 times to select the mode.
Pull out the key from the ignition key cylinder.
When add mode or rewrite mode
is selected.When confirmation
mode is selected.
ON
ONON
LOCK
LOCKLOCK
Approx.
1 sec.Approx.
1 sec. Approx. 1 sec.Approx.
1 sec.Approx.
1 sec.
Add mode
Rewrite modeConfirmation mode
ON ± LOCK change occurs 1 time
ON ± LOCK change occurs 2 timesON ± LOCK change occurs 3 times
Door control relay automatically performs
the LOCK±UNLOCK operation once
or twice at 1 sec. interval to inform the
operator that either the add mode or
rewrite mode has been selected.
LOCK±UNLOCK occurs once
LOCK±UNLOCK occurs twice
Indicates that add mode has been selected.
Indicates that rewrite mode has been
selected.
1 sec.
LOCK
1 sec.1 sec.
LOCK
UNLOCK
UNLOCK
LOCK
2 secs.2 secs.
UNLOCK Door control relay automatically performs
the LOCK±UNLOCK operation 1 to 4 times
at 2 sec. interval to inform the operator of
the number of the registered codes.
HINT:
When the number of the registered code
is 0, the operation is automatically
performed 5 times.
Example:
When the operation is performed twice, it
directs that 2 types of recognition code
have been registered.
1st time 2nd time
Registration of recognition code (Confirmation
mode and prohibition mode) is completed.
ON
LOCK
Approx.
1 sec.Approx.
1 sec.
Prohibition mode
ON ± LOCK change occurs 5 times
When prohibition
mode is selected.

BE1W9±01
BE±104
± BODY ELECTRICALHYBRID VEHICLE IMMOBILISER SYSTEM
1771 Author: Date:
2001 PRIUS (RM778U)
HYBRID VEHICLE IMMOBILISER SYSTEM
REGISTRATION PROCEDURE
1. THE COMMUNICATION BETWEEN THE HYBRID VEHICLE CONTROL ECU AND THE TRANS-
PONDER KEY ECU IS AS FOLLOWS
(a) When the ignition is turned ON, the transponder key ECU checks if the key is pre±registered or not
and sends the check result to the hybrid vehicle control ECU.
(b) When the hybrid vehicle control ECU confirms that the key is pre±registered, it transmits its own ID
(random numbers) to the transponder key ECU.
(c) Receiving the ID, the transponder key ECU calculates internally and sends the calculated result back
to the hybrid vehicle control ECU.
(d) The hybrid vehicle control ECU rechecks the calculation inside the ECU.
When the calculation result corresponds to its own ID, this enables the engine to start.
2. PREASE DO THE FOLLOWING PROCEDURES WHEN YOU EXCHANGE TRANSPONDER KEY
ECU
HINT:
When replacing the transponder key ECU or hybrid vehicle control ECU, start the engine after leaving it for
more than 30 minutes with the ignition switch ON position.
(a) (Case 1):
Replace the transponder key ECU. "Register the new transponder key codes. "Leave more than
30 minutes with the ignition switch ON. "Start the engine.
(b) (Case 2):
Replace the hybrid vehicle control ECU. "Leave more than 30 minutes with the ignition switch ON.
"Start the engine.
(c) (Case 3):
Replace the transponder key ECU and hybrid vehicle control ECU. "Register the new transponder
key codes. "Start the engine.
3. IF ALL KEYS ARE LOST, OBSERVE THE FOLLOWING
(a) Purchase a new transponder key ECU and a new key.
(b) Replace the transponder key ECU with new one.
(c) Insert a new key into the key cylinder, turn the ignition switch ON and leave it as it is for 30 min.
4. SETTING HYBRID VEHICLE IMMOBILISER SYSTEM
(a) Removing a key from the key cylinder sets hybrid vehicle immobiliser system.
(b) When 20 sec is elapsed after the key is turned from ignition switch ON to ACC or LOCK, the hybrid
vehicle immobiliser is set.
5. UNSETTING HYBRID VEHICLE IMMOBILISER SYSTEM
Insert a key into the key cylinder
(Under this condition, transponder key ECU starts communication with the transponder chip built in the key.
When the ID code in the chip coincides with that registered in ECU consecutively 2 times, the hybrid vehicle
immobiliser system is reset).