2001 TOYOTA PRIUS Service Repair Manual

I15483
10
9
16 4 7
5 1
2
6
5
4
3
2
16 2 6 2 6 5
8
9ACTD B9Body ECU
R
G
G R
GG
G G
GG RR
RR
RRG
R2I
2J J14
J14 J14
J15
J15
J15
J15 IG1
IC1
IQ1
BB1
BA1A
B
BAB C C
2L
2L D13
Door Lock Motor Front LH
D14
Door Lock Motor Front RH
D12
Door Lock Motor Rear RH
D11
Door Lock Motor Rear LH
Instrument Panel J/B IQ1
BB1
BA11ACT+
ACT±
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±717
2001 PRIUS (RM778U)
Door lock motor circuit
WIRING DIAGRAM
DI7NS±01

DI±718
± DIAGNOSTICSBODY CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check door lock motor (See page BE±62).
NG Replace the door lock motor.
OK
2 Check wireharness and connector between door lock motor and body ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±683).

I15490
PCTY 12 13
3 3
1A A
1
6
63Body ECU
B8
ID2
J12 J13
IB12K
2L
2K R±W
R±G
R R±W
R±W
R±W
R±WR±W F D J16
J/CInstrument
Panel J/B
D7
Door
Courtesy
SW
Front RHD6
Door
Courtesy
SW
Front LHD8
Door
Courtesy
SW
Rear LHD9
Door
Courtesy
SW
Rear RHDCTY
RCTY
1
1 1J/C
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±719
2001 PRIUS (RM778U)
Door Courtesy Switch Circuit
CIRCUIT DESCRIPTION
The door courtesy switch goes on when the door is opened and goes off when door is closed.
WIRING DIAGRAM
DI7NU±01

DI±720
± DIAGNOSTICSBODY CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check courtesy switch (See page BE±27).
NG Replace the courtesy switch.
OK
2 Check that there is a grounding malfunction caused by looseness of the tighten
screw.
NG Install screw.
OK
3 Check wireharness and connector between courtesy switch and body ECU (See
page IN±41).
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page
DI±683).

I15488
5
8
1
2
11
8
8 A
E DA
AA
AB9
DBKL
IJ1
J22
J23 IJ1J24 J24
2D 2K
IDJ11
J/CG±O
W±B
W±B W±BW±B
W±B W±BG±O
G±O B20
Buckle SW LH
Instrument Panel J/BJ29
J/CBody ECU
J/C
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±721
2001 PRIUS (RM778U)
Driver Buckle Switch Circuit
CIRCUIT DESCRIPTION
When the buckle switch of the driver's seat is ON with the ignition switch ON, the body ECU sends a signal
to make the seat belt warning light for the driver's seat light up and to sound a buzzer.
When the buckle switch of the passenger seat is ON and the passenger seat belt occupant detecting sensor
is ON with the ignition switch ON, the body ECU sends a signal to make the seat belt warning light for the
passenger seat light up.
WIRING DIAGRAM
DI6R2±04