TOYOTA PRIUS 2001 Service Repair Manual

DI±746
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check the door key lock and unlock switch using DTC check
(See page DI±765).
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±683).
NG
2 Check the door key lock and unlock switch (See page BE±62).
NG Replace the door key lock and unlock switch.
NG
3 Check wireharness and connector between door key lock and unlock switch and
driver door ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±734).

I15514
DCTY
D7
Door Courtesy SW
Front RHIC17P9 Power Window
Master SW
R±Y
2
J16
J/C 3 D4 DIODE
(Door Courtesy)
R±W
AA
R±W16 R±Y
1
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±747
2001 PRIUS (RM778U)
Door courtesy light and 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
DI2BR±10

DI±748
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check operation of door courtesy light.
CHECK:
Check that door courtesy light comes on when door opened, and goes off when door is closed.
OK:
Must be operated normally.
OK Proceed to next circuit inspection shown on
problem symptom table (See page DI±734).
NG
2 Check courtesy light (See page BE±27).
NG Replace the courtesy light.
OK
3 Check courtesy switch (See page BE±27).
NG Replace the courtesy switch.
OK
4 Check wireharness and connector between courtesy light and driver door ECU,
courtesy switch and driver door ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±734).

I15516
P10
Power Window Motor
Y
G
PLS DU
DON
LMT SGND 8
20
11 O
P±L
GR 1
2
3 45P9 Power Window
Master SW
13
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±749
2001 PRIUS (RM778U)
Power window motor circuit
WIRING DIAGRAM
DI2BS±10

DI±750
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check power window motor (See page BE±56).
NG Replace the power window motor.
OK
2 Check wireharness and connector between power window motor and driver door
ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±734).

I15516
P10
Power Window Motor
Y
G
PLS DU
DON
LMT SGND 8
20
11 O
P±L
GR 1
2
3 45P9 Power Window
Master SW
13
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±751
2001 PRIUS (RM778U)
Jam protection limit switch circuit
CIRCUIT DESCRIPTION
Jam protection limit switch is built±in the power window motor. This switch functions to turn ºOFFº before the
top dead center, and ECU reads this ºOFFº signal resulting in closing the window fully.
WIRING DIAGRAM
DI2BT±09

DI±752
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check jam protection limit switch (See page BE±56).
NG Replace the power window motor.
OK
2 Check wireharness and connector between jam protection limit switch and driv-
er door ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±734).

I15516
P10
Power Window Motor
Y
G
PLS DU
DON
LMT SGND 8
20
11 O
P±L
GR 1
2
3 45P9 Power Window
Master SW
13
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±753
2001 PRIUS (RM778U)
Jam protection pulse switch circuit
CIRCUIT DESCRIPTION
Jam protection pulse switch is built±in the power window motor. Pulse switch outputs ON/OFF pulse when
the motor rotates.
WIRING DIAGRAM
DI2BU±09

DI±754
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
2001 PRIUS (RM778U)
INSPECTION PROCEDURE
1 Check jam protection pulse switch (See page BE±56).
NG Replace the power window motor.
OK
2 Check wireharness and connector between jam protection pulse switch and
driver door ECU.
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI±734).

DI1SF±03
I15526
ECM
Body ECUDLC3
Gateway ECU
Power Window Master Switch
(Driver Door Control ECU)A/C Amplifier
Combination Meter
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±757
2001 PRIUS (RM778U)
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) As shown in the following illustration, each ECU of this ve-
hicle is connected by communication bus and it transmits
each signal by communication. This communication bus
is self±diagnosed by Body ECU and it memorizes DTC
when it detects communication stop to ECU or commu-
nication bus +B short or GND short. There is a possibility
that Body ECU cannot self±diagnose accurately unless
it doesn't work normal. So, please note that the trouble-
shooting of Body Electrical System should be done after
confirming if Body ECU and Open door indicator works
normal by 2. ºBASIC INSPECTIONº described later.