Toyota Corolla (2004+). Manual - part 50
05-662
DIAGNOSTICS
- COMBINATION METER
2
INSPECT FRONT SEAT INNER BELT ASSY LH
(a) Disconnect the front seat inner belt assy.
(b) Check continuity front seat inner belt assy.
Belt condition
Terminal
Specified condition
Belt unfastend
1 - 2
Continuity
Belt fastend
1 - 2
No continuity
I30985
NG REPLACE FRONT SEAT INNER BELT ASSY LH
OK
REPAIR OR REPLACE HARNESS OR CONNECTOR
05-663
DIAGNOSTICS
- COMBINATION METER
057KM-04
SEAT BELT WARNING LAMP FOR FRONT PASSENGER’S SEAT
DOES NOT FLASH
WIRING DIAGRAM
F7
Front Passenger Seat
Combination Meter
RH J/B
Belt Warning Light
22
11
6
1
3
to GAUGE Fuse
3B
3B
B
LAPL
C9
P-BELT OUT
R-W
R-W
L
Buckle SW RH
Airbag Sensor Assy
Occupant Detection Sensor
8
3
11
2
3
RBE+
A14
BMR
ODS
IG1
C9
P-BELT SW
B
B
L-W
L-W
4
WS+
B
1
E
W-B
RH J/B
J7
J/C
4
14
11
A
IG1
3A
3A
W-B
W-B
IG
I32383
05-664
DIAGNOSTICS
- COMBINATION METER
INSPECTION PROCEDURE
1
INSPECT COMBINATION METER ASSY
(a) Ground terminal C9-11 on the combination meter side.
(b) Check that the warning lightlights up.
OK: Warning light lights up.
OK Go to step 3
P BELT SW
I30040
NG
2
INSPECT PASSENGER SEAT BELT WARNING LAMP ASSY
(a) Ground terminal C9-6 on the combination meter side.
(b) Check that the warning lightlights up.
OK: Warning light lights up.
P-BELT OUT
I30040
NG CHECK AND REPLACE PASSENGER SEAT
BELT WARNING LAMP ASSY
OK
CHECK AND REPLACE COMBINATION METER ASSY
3
INSPECT FRONT SEAT INNER BELT ASSY RH
(a) Check continuity.
(1)
Disconnect the front seat inner belt assy.
(2)
Check the continuity in between terminals 1 and 2
of front seat inner belt assy RH.
OK:
Condition
Continuity
Seat belt is fastened
Continuity
Seat belt is unfastened
No continuity
I32727
NG CHECK AND REPLACE FRONT SEAT INNER
BELT ASSY RH
OK
05-665
DIAGNOSTICS
- COMBINATION METER
4
INSPECT SEPARATE SEAT TYPE FRONT SEAT CUSHION PAD
(a) Disconnect the separate type front seat cushion pad.
Connector
(b) Check continuity separate type front seat cushion pad.
Press
Sear condition
Terminal
Specified condition
Released
1 - 2
No continuity
Pressed
1 - 2
Continuity
Released
I30048
NG CHECK AND REPLACE SEPARATE SEAT TYPE
FRONT SEAT CUSHION PAD
OK
REPAIR OR REPLACE HARNESS AND CONNECTOR
05-647
DIAGNOSTICS
- COMBINATION METER
057KE-02
PROBLEM SYMPTOMS TABLE
Symptom
Suspect Area
See page
3.
Fuse
Entire combination meter does not operate.
4.
Wire-harness and connector
05-648
5.
Combination meter assembly
1.
Brake system
Malfunction in speed meter.
2.
Wire-harness and connector
05-650
3.
Combination meter assembly
1.
ECM
Malfunction in tacho meter.
2.
Wire-harness and connector
05-653
3.
Combination meter assembly
1.
Fuel sender gauge
Malfunction in fuel receiver gauge.
2.
Wire-harness and connector
05-655
3.
Combination meter assembly
1.
ECM
Malfunction in water temperature gauge.
2.
Wire-harness and connector
05-657
3.
Combination meter assembly
1.
Front door courtesy switch
”Key unlock warning bozzer” or ”Light auto turn off warning buzz-
2.
Key unlock warning switch
05-659
er” does not operate.
3.
Wire-harness and connector
4.
Combination meter assembly
1.
Driver seat belt buckle switch
Driver seat belt warning buzzer does not sound.
2.
Wire-harness and connector
05-663
3.
Combination meter assembly
1.
Front seat inner belt assembly
2.
Separate type front seat cushion pad
Seat belt warning lamp for front passenger seat does not flash.
05-663
3.
Combination meter assembly
4.
Passenger seat belt warning light assembly
1.
Fuse
Malfunction in clock.
2.
Wire-harness and connector
05-666
3.
Clock assembly
1.
Fuse
The ambient temperature does not display.
2.
Wire-harness and connector
05-668
3.
Ambient temperature sensor
05-645
DIAGNOSTICS
- COMBINATION METER
057KD-04
TERMINALS OF ECU
C9
20 19 18 17 16 15 14 13
12 11 10
9
8
7
6
5
4
3
2
1
40
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
I32850
Terminals No. (Symbols)
Wiring Color
Condition
STD Voltage (V)
1 Body ground
(SIGNAL EARTH Body
BR
Constant
Continuity
ground)
2 Body ground
(POWER EARTH Body
W-B
Constant
Continuity
ground)
3 Body ground
LG
O/D off indicator light ON OFF
Below 1V 10 - 14 V
(O/D Body ground)
4 Body ground
R-W
Ignition switch OFF or ACC ON
Below 1V 10 - 14 V
(IG1+ Body ground)
5 Body ground
L-W
Constant
10 - 14 V
(+B Body ground)
6 Body ground
L
Passenger seat belt warning ON OFF
Below 1V 10 - 14 V
(P-BELT OUT Body ground)
7 Body ground
Y
Fuel level is full empty
Below 1V 4 - 7 V
(FUEL Body ground)
8 Body ground
Y-R
Ignition switch ON
Pulse generation
(TEMP Body ground)
9 Body ground
W-G
Ignition switch ON and slowly turn drive wheel
Below 1 V 10 - 14 V
(SP IN Body ground)
10 Body ground
V-W
Ignition switch ON and slowly turn drive wheel
Below 1 V 10 - 14 V
(4P OUT Body ground)
Ignition switch ON and passenger seat belt buckle switch ON
Below 1 V
(Belt unfastened)
11 Body ground
L-W
(P BELT SW Body ground)
Ignition switch ON and passenger seat belt buckle switch OFF
10 - 14 V
(Belt fastened)
Ignition switch ON and driver seat belt buckle switch ON (Belt
Below 1 V
unfastened)
12 Body ground
G-Y
(D BELT SW Body ground)
Ignition switch ON and driver seat belt buckle switch OFF (Belt
10 - 14 V
fastened)
13 Body ground
W-B
Hi beam indicator light ON OFF
Below 1V 10 - 14 V
(BEAM- Body ground)
14 Body ground
R
Constant
10 - 14 V
(BEAM+ Body ground)
05-646
DIAGNOSTICS
- COMBINATION METER
Ignition key inserted
Below 1 V
16 Body ground
L-B
(KEY SW Body ground)
No ignition key inserted
10 - 14 V
17 Body ground
R-W
Driver door opened closed
Below 1V 10 - 14 V
(D DOOR Body ground)
18 Body ground
G
Tail light switch OFF ON
Below 1V 10 - 14 V
(ILL+ Body ground)
19 Body ground
B
Engine running
Pulse generation
(TACHO Body ground)
20 Body ground
(EXCEPT D DOOR Body
R
Passenger door opened closed
Below 1V 10 - 14 V
ground)
21 Body ground
W
Oil pressure warning light ON OFF
Below 1V 10 - 14 V
(OIL P Body ground)
22 Body ground
BR
Constant
Continuity
(FUEL EARTH Body ground)
23 Body ground
G-R
Ignition switch ON and cruise indicator light ON OFF
Below 1V 10 - 14 V
(CRUISE Body ground)
24 Body ground
G-B
Left turn indicator light OFF ON
Below 1V 10 - 14 V
(TURN L Body ground)
25 Body ground
G-Y
Right turn indicator light OFF ON
Below 1V 10 - 14 V
(TURN R Body ground)
26 30
(OUT SIDE TEMP+ OUT
B - B-L
Outside temperature at +25FC (77FF)
1.6 - 1.8KW
SIDE TEMP-)
28 Body ground
W-R
Ignition switch On and light control rheostat volume minimum
No voltage
(ILL- Body ground)
31 Body ground
Y
Discharge indicator light OFF ON
Below 1V 10 - 14 V
(CHG- Body ground)
32 Body ground
B-O
Ignition switch OFF ON
Below 1V 10 - 14 V
(IG2 Body ground)
33 Body ground
R-Y
Malfunction indicator light ON OFF
Below 1V 10 - 14 V
(CHK ENG Body ground)
34 Body ground
(WASHER LEVEL Body
* L-W
Washer level indicator light ON OFF
Below 1V 10 - 14 V
ground)
35 Body ground
(BRAKE LEVEL SW Body
R-W
Ignition switch ON and brake fluid level warning light ON OFF
Below 1V 10 - 14 V
ground)
36 Body ground
R
Brake warning light ON OFF
4 - 8 V Below 1V
(EBD Body ground)
37 Body ground
W-R
ABS warning light ON OFF
4 - 8 V Below 1V
(ABS Body ground)
39 Body ground
B-Y
A/B warning light ON OFF
Below 1V 6 - 11 V
(A/B Body ground)
*: Canada
05-638
DIAGNOSTICS
- COMBINATION METER
COMBINATION METER
057KA-02
HOW TO PROCEED WITH TROUBLESHOOTING
1
Vehicle Brought to Workshop
2
Customer Problem Analysis (See page
05-639)
3
Problem Symptom Confirmation (See page
05-647)
4
Circuit Inspection (See page
05-648 - 05-668)
5
Repair or Replace
6
Confirmation Test
7
End
05-659
DIAGNOSTICS
- COMBINATION METER
057T3-02
WARNING BUZZER DOES NOT SOUND (KEY REMINDER
WARNING, LIGHT REMINDER WARNING)
WIRING DIAGRAM
Combination Meter
RH J/B
15
14
U1
4A
4A
Unlock Warning SW
L-B(*1)
L-B(*1)
16
C9
KEY SW
W-B
1
2
L-B(*2)
Instrument Panel J/B
Integration Relay
3
17
DCTY
IL
C9
D-DOOR
5
R-W
1
ID
R-W
A
J6
J/C
1
D4
Door Courtesy SW
IE
(Driver’s Side)
*1: w/ Door Lock Control
*2: w/o Door Lock Control
I32381
INSPECTION PROCEDERE
1
CHECK BUZZER
(a) Check that all of the warning buzzers sound.
A
B
Some buzzers sound
No buzzer sounds
B
CHECK AND REPLACE COMBINATION METER
ASSY
A
05-660
DIAGNOSTICS
- COMBINATION METER
2
INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY(See Page 65-7)
NG REPLACE FRONT DOOR COURTESY LAMP
SWITCH ASSY
OK
3
INSPECT UN-LOCK WARNING SWITCH ASSY(See Page 05-682)
NG REPLACE UN-LOCK WARNING SWITCH ASSY
OK
4
CHECK HARNESS AND CONNECTOR(BETWEEN UN-LOCK WARNING SWITCH
AND COMBINATION METER ASSY)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
5
CHECK HARNESS AND CONNECTOR(BETWEEN COURTESY LAMP SWITCH AND
COMBINATION METER ASSY)
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE COMBINATION METER ASSY
05-677
DIAGNOSTICS
-
POWER DOOR LOCK CONTROL SYSTEM
057TI-01
ALL DOOR LOCK AND UNLOCK DO NOT OPERATE BY THE
MASTER SWITCH OR THE DRIVER’S DOOR KEY
CIRCUIT DESCRIPTION
The integration relay receives a switch signal from the master switch, door lock control switch or the driver’s
door key and then drives the door lock motor.
05-678
DIAGNOSTICS
-
POWER DOOR LOCK CONTROL SYSTEM
WIRING DIAGRAM
D10*2, D11*1
I11
Power Window Regulator
Integration Relay
Master Switch Assy
*2
*1
Center J/B
(Door Look Control Switch)
6
5
5
20
22
9
L-W
L-W
L-W
3
3
D10
D11
IC1
4A
4A
I11
L1
W-B
D10
D11
5
8
4
17
19
8
L
L
L
*2
*1
D10
D11
IC1
4A
4A
I11
UL1
D12
*2
*1
Door Lock Control Switch Assy
7
21
(Passenger’s Side)
6
L-W
L-W
IJ2
4A
W-B 3
12
18
5
L
L
IJ2
4A
D8
Front Door Lock Assy LH
11
9
G
G
IC1
W-B
7
10
6
10
L-Y
L-Y
IC1
I11
UL3
3
19
8
W
W
IC1
I11
LSWD
8
1
1
R
R
IC1
I11
ACTD
9
4
L
IC1
D9
2
4A
Front Door Lock Assy RH
11
1
3
7
6
G
G
G
IJ2
4A
4A
I11
L2
8
W-B
10
5
W-B
5
L-B
L-B
Center J/B
IJ2
I11
UL2
3
18
7
W-R
W-R
IJ2
I11
LSWP
8
L
W-B
4A
Instrument Panel J/B
8
4
6
5
1
R
R
R
3
IJ2
4A
4A
IK
ACT-
9
9
10
2
4
L
L
L
2
IJ2
4A
4A
IK
ACT+
D14
Rear Door Lock Assy RH
8
5
1
R
R
6
IC1
1
IJ2
BB1
4A
3
7
4
L
L
BB1
4A
W-B
W-B
D13
A
A
Center J/B
J6
J7
Rear Door Lock Assy LH
8
20
J/C
J/C
1
R
R
BA1
ID
3
9
4
L
L
BA1
ID
IE
IG
*
1: w/ Power Window
*
2: w/o Power Window
B59529
05-679
DIAGNOSTICS
- POWER DOOR LOCK CONTROL SYSTEM
INSPECTION PROCEDURE
1
CHECK DOOR LOCK
(a) When the door does not operate manually, proceed to ”A”.
(b) When the door does not operate via the key, proceed to ”B”.
B
Go to step 4
A
2
INSPECT DOOR LOCK CONTROL SWITCH
(a) w/ Power window:
w/ Power Window
Remove the power window regulator master switch assy.
LOCK
UNLOCK
(1)
Inspect the master switch (door lock control switch)
continuity, as shown in the illustration and table.
Standard:
Switch position
Terminal No.
Specified condition
Lock
1 3 5
Continuity
OFF
-
-
Door Lock
Unlock
1 3 8
Continuity
Control Switch
(b) w/o Power window:
Remove the door lock control switch.
(1)
Inspect the door lock control switch continuity, as
w/o Power Window
shown in the illustration and table.
LOCK
No pin (1 and 2)
Standard:
Switch position
Terminal No.
Specified condition
Lock
3 6
Continuity
UNLOCK
OFF
-
-
Unlock
3 5
Continuity
NG REPLACE POWER WINDOW REGULATOR
MASTER SWITCH ASSY (W/ POWER WINDOW)
No pin (4)
B59539
NG REPLACE DOOR LOCK CONTROL SWITCH
B59538
B59540
(W/O POWER WINDOW)
OK
05-680
DIAGNOSTICS
- POWER DOOR LOCK CONTROL SYSTEM
3
CHECK WIRE HARNESS (SWITCH INTEGRATION RELAY)
(a)
w/ Power window:
Integration Relay (Instrument Panel J/B)
Disconnect the power window regulator master switch
(Wire Harness Side)
assy and integration relay connectors.
I11
w/o Power window:
Disconnect the door lock control switch and integration
relay connectors.
(b)
Check the continuity between the terminals of the power
window regulator master switch assy or door lock control
switch and integration relay connectors, as shown in the
illustration and tables.
[w/ Power Window]
w/ Power Window
Standard (Check for open):
Master Switch (Wire Harness Side)
Symbols (Terminal No.)
D11
Specified condition
(Master switch Integration relay)
L (D11-5) L1 (I11-9)
UL (D11-8) UL1 (I11-8)
Continuity
1
2
3 4 5
6
7 8
9
E (D11-1) Body ground
1011
12131415161718
E (D11-3) Body ground
[w/o Power Window]
w/o Power Window
Standard (Check for open):
Door Lock Control Switch
Symbols (Terminal No.)
Specified condition
(Wire Harness Side)
(Door lock control switch Integration relay)
D10
L (D10-6) L1 (I11-9)
UL (D10-5) UL1 (I11-8)
Continuity
E (D10-3) Body ground
B59533
OK REPLACE INTEGRATION RELAY
NG REPAIR OR REPLACE WIRE HARNESS AND
CONNECTOR
05-681
DIAGNOSTICS
- POWER DOOR LOCK CONTROL SYSTEM
4
INSPECT DRIVER’S DOOR LOCK (See page 73-3)
(a) Inspect the driver’s door lock key switch.
(b) Inspect the driver’s door lock position switch.
NG REPLACE DRIVER’S DOOR LOCK
OK
5
CHECK WIRE HARNESS (DRIVER’S DOOR LOCK INTEGRATION RELAY)
(a) Disconnect the driver’s door lock and integration relay
Driver’s Door Lock
connectors.
(Wire Harness Side)
(b) Check the continuity between the terminals of the driver’s
D8
door lock and integration relay connectors, as shown in
the illustration and table.
Standard (Check for open):
1
2
3
4
Symbols (Terminal No.)
Specified condition
5
6 7
8 910
(Driver’s door lock Integration relay)
(D8-9) L2 (I11-7)
(D8-10) UL3 (I11-6)
Continuity
Integration Relay (Instrument Panel J/B)
(D8-8) LSWD (I11-19)
(Wire Harness Side)
(D8-7) Body ground
I11
NG REPAIR OR REPLACE WIRE HARNESS AND
B59534
CONNECTOR
OK
REPLACE INTEGRATION RELAY