key TOYOTA PRIUS PLUG-IN 2012 Service Manual

500
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
FUSEAmpereCircuit
30 H-LP RH LO 15A Right-hand headlight (low beam)
31 PCU 10A Inverter and converter
32 IGCT NO.2 10A
Hybrid system, P position control
system, power management sys-
tem, multiport fuel injection sys-
tem/sequential multiport fuel
injection system
33 MIR HTR 10A Outside rear view mirror defoggers
34 RAD NO.1 15A Audio system, navigation system
35 DOME 10A
Door courtesy lights, luggage
compartment light, personal light,
interior light, foot lights, vanity
lights, inside rear view mirror,
garage door opener
36 ECU-B 7.5ASmart key system, personal lights,
gauges and meters
37 H-LP LH HI 10A Left-hand headlight (high beam)
38 H-LP RH HI 10A Right-hand headlight (high beam)
39 EFI NO.2 10A
Multiport fuel injection system/
sequential multiport fuel injection
system
40 IGCT NO.3 10A Cooling system
41 SPARE 30A Spare fuse
42 SPARE 10A Spare fuse

504
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
FUSEAmpereCircuit
25 RR WIP 20A Rear window wiper and washer
26 WIP 30A Windshield wipers
27 MET 7.5A Gauges and meters
28 IGN 10A
Brake system, driver support sys-
tem, multiport fuel injection sys-
tem/sequential multiport fuel
injection system, SRS airbag sys-
tem, front passenger occupant
classification system (ECU and
sensors), power management sys-
tem, smart key system, front pas-
senger’s seat belt reminder light
29 PANEL 10A
Air conditioning system, personal
light, transmission, P position
switch, navigation system, Remote
Air Conditioning System, headlight
cleaner, front passenger’s seat
belt reminder light, headlight level-
ing system, glove box light, clock,
audio system, MPH or km/h switch
30 TAIL 10A
Headlight leveling system, park-
ing lights, tail lights, license plate
lights, front fog lights, side marker
lights

5
When trouble arises
525
5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer before towing.
●The hybrid system is operating but the vehicle will not move.
●The vehicle makes an abnormal sound.
If there is a malfunction in the P position control system, the smart
key system or the immobilizer system, or if the 12-volt battery is dis-
charged, the vehicle cannot be towed with the front wheels on the
ground, as the front wheels may be locked. In this case, transport the
vehicle with both front wheels or all four wheels lifted.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commercial towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/pro-
vincial and local laws.

556
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem,
check that the warning message and light turn off.
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
Once⎯
(Comes on for 15 seconds.)
(Flashes)
The electronic
key is not
detected when
attempting to
start the hybrid
system.
Confirm
the loca-
tion of the
electronic
key.
Once 3 times
(Flashes)
An open door
other than the
driver’s door is
closed while the
electronic key is
outside the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode.
Confirm
the loca-
tion of the
electronic
key.

5
When trouble arises
557
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
Once 3 times
(Flashes)
An open door
other than the
driver’s door is
closed while the
electronic key is
outside the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode
with the shift
position in P.
Turn the
“POWER”
switch to
OFF or
confirm
the loca-
tion of the
electronic
key.
Contin-
uous⎯
(Flashes)
The driver’s
door has been
opened with the
shift position in
a position other
than P and with-
out first turning
the “POWER”
switch is OFF.
Shift the
shift posi-
tion to P.

558
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
OnceContin-
uous
(Displayed alternately)
(Flashes)
The electronic
key has been
taken outside
the vehicle and
the doors have
been locked
without first
turning the
“POWER”
switch to OFF.
(vehicles with
entry function)
Turn the
“POWER”
switch to
OFF and
lock the
doors
again.

5
When trouble arises
559
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
OnceContin-
uous
(Flashes)
An attempt to
lock the doors
has been made
using the smart
key system
while the elec-
tronic key is
inside the vehi-
cle. (vehicles
with entry func-
tion)
Ta k e t h e
electronic
key out-
side the
vehicle,
and lock
the doors
again.
With the key
inside the vehi-
cle, a front door
has been
opened, the
lock lever has
been pulled in
the lock direc-
tion, the door
has been
closed and an
attempt has
been made to
lock the door.

560
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
Contin-
uous
Contin-
uous
(Displayed alternately)
(Flashes)
An open door
other than the
driver’s door is
closed while the
electronic key is
outside the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode
with the shift
position not in P.
•Shift the
shift posi-
tion to P.
•Confirm
the loca-
tion of the
electronic
key.
Once⎯
(Comes on for 15 seconds.)
The electronic
key battery is
low.
Replace
the bat-
tery.
(→P. 4 9 3 )
Once⎯
(Flashes)
An open door
has been
closed and the
“POWER”
switch has been
turned twice to
the ACCES-
SORY mode
from OFF.
Press the
“POWER”
switch
while
applying
the
brakes.

5
When trouble arises
561
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
Interior
buzzer
Exterior
buzzerWarning messageDetailsCorrection
procedure
Once⎯
(Flashes)
The elec-
tronic key
does not
operate
properly.
→P. 5 9 1
⎯⎯
Power
was
turned off
due to
the auto-
matic
power off
function.
Next time when
starting the
hybrid system,
increase the
engine speed
slightly and
maintain that
level for approxi-
mately 5 min-
utes to charge
the battery.
NOTICE
■While the engine oil level warning is displayed
Continued engine operation with low engine oil will damage the engine.
■Engine oil maintenance message
The warning message is based on the projected driving range after engine
oil maintenance message is reset.
The system does not monitor the purity of the engine oil.

588
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the
situation. Check the following and perform the appropriate proce-
dure:
■The hybrid system will not start even though the correct
starting procedure is being followed (→P. 2 3 8 )
One of the following may be the cause of the problem:
●The charging cable may be attached to the vehicle. (→P. 9 1 )
●The electronic key may not be functioning properly.*
(→P. 5 9 1 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system.*
(→P. 1 7 9 )
●There may be a malfunction in the P position control system.*
(→P. 2 4 3 , 5 4 8 )
*: It may not be possible to shift the shift position from P to another
position.
■The interior lights and headlights are dim, or the horn does
not sound or sounds at a low volume
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (→P. 5 9 4 )
●The 12-volt battery terminal connections may be loose or cor-
roded.