Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xg ciha26
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05-1 181
DIAGNOSTICS - LIGHTING SYSTEM 05BVZ-02
ILLUMINATION CIRCUIT
CIRCUIT DESCRIPTION
The Multiplex network body ECU controls illumination lamp as shown in the chart below.
(1) Room lamp assy (Interior light, luggage component light) and courtesy lamp with DOOR position
(2) Map lamp assy (Personal light)
(3) Transponder key amplifier (Ignition key cylinder light)
WIRING DIAGRAM
Multiplex Network
D5
Driver Side Junction Block Body ECU
Front Door
27 13 3 Courtesy Lamp LH 12 13
R R R R R-W R-W
1C 1L IA1 IA1 B9 DCYL
1 2
16 6 D6
R J19 Front Door
1P 1R
51 J/C Courtesy Lamp RH 4
3 24
R R R R-G R-G
IM2 IM2 B7 PCYL
R 111 12 1 2
91 11 Driver Side
21 Ignition Key Cylinder Light J19 Junction Block
(Transponder Key Cylinder) J/C
2 2 1 6 30
R L L
I13 I14 I13 I14 1H ILE
28 48 21
(*1) (*2) (*1) (*2)
R
I16 Interior Dome
Lamp Switch Assy
L
1 FCTY
R-B R-B 5 38
ID2 9
8 RLMP G G
RCTY B7 RCUT
10 6 39 17
R-G R-G
ID2 FLMP W-B
10 E
7 LG
RLY
9
Driver Side Junction Block
1 16
W-B W-B
1R 1L
*1: w/o Engine Immobiliser System
1 2 3 4 5 6 7 *2: w/ Engine Immobiliser System 8 9 10 11
I45857
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1364
05-1 182
DIAGNOSTICS - LIGHTING SYSTEM
P11
1 2 3 4 5 6 7 Map Lamp LH 8 9 10 11
W-B ON
R R
R-G 1
DOOR 2
I19
Interior Light LH No.1 ON
DOOR R
ON 3
R-B
OFF R
R-W 1
2 I21
R-B 3 DOOR Interior Light RH No.1
ON R
R-B R-B
1 R
R-W 2
I20 3 DOOR
R-B R-W Interior Light LH No.2
R
ON
R-B R-B
1 R
R-W 2 I22
3 DOOR Interior Light RH No.2
R-W
ON
R-B R-B
1 R
R-W 2 J19
3 DOOR J/C
3
R-W R-W
ID2
120
S27 Rear Door
6 J/C 14 Courtesy Lamp RH 13 J/C 5
R R R-W R-W
J31 J32 J32 J31
1 2 100
J37 S26 Rear Door J37
J/C Courtesy Lamp LH J/C 21 J/C 5
6
R R R-W R-W R-W R-W
BE1 J12 J11
27 28 1 2 25 24 110
L4 Room Lamp D3 119
Assy No.2 Dome Cut Relay
R R-W R LG LG
29 1 2 26 2 1
R W-B R-W
3 5
Engine Room Junction Block
3 DOME Short Pin 1 J16
R W J/C A
2C 2D
2 1 W-B
Fusible Link Block A
FL MAIN 1 1 A
W
F6 F8 W-B W-B
Battery IG IE
I45858
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1365
05-1 183
DIAGNOSTICS - LIGHTING SYSTEM
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 in the case of using the hand-held tester, and start from step 2 in the case
of not using the hand-held tester.
1 PERFORM ACTIVE TEST USING HAND-HELD TESTER
(a) Connect the hand-held tester to DLC3.
(b) Turn the ignition switch ON and push the hand-held tester main switch ON.
(c) Select the item below in the ACTIVE TEST and then check that the relay operates.
BODY NO.1:
Item Test Details Diagnostic Note
(Test Details)
Turn Interior light and Key illumination ON/OFF
ILLUMI OUTPUT (Vehicle Condition) -
Interior light SW is in Door position and all doors
are closed
NG PROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
OK
2 INSPECT LIGHT CONTROL RELAY
(a) Check that there is continuity between the terminals at
each switch position as shown in the chart.
Standard:
Switch operation Tester connection Specified condition
8-7
OFF 9-7 No continuity
10 - 7
5 -10
DOOR 6-9 Continuity
I35771 7-8
ON 7 - 8 - 9 - 10 Continuity
NG REPLACE LIGHT CONTROL RELAY
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1366
05-1 184
DIAGNOSTICS - LIGHTING SYSTEM
3 INSPECT INTERIOR DOME LAMP SWITCH ASSY
(a) Inspect interior dome lamp relay continuity.
Standard:
Condition Tester connection Specified condition
Always 1-2 Continuity
Always 3-5 No continuity
Apply B+ between
3-5 Continuity
the terminal 1 and 2
NG REPLACE INTERIOR DOME LAMP SWITCH
B16200 ASSY
OK
4 INSPECT INTERIOR LIGHT
(a) Inspect the each of interior light (See page 65-4 ).
NG REPLACE INTERIOR LIGHT
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1367
05-1 185
DIAGNOSTICS - LIGHTING SYSTEM
5 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSY
(a) Measure voltage between each of the terminals as shown in the chart below.
Standard:
Tester connection Condition Specified voltage
1H-30 - Body ground All doors are closed any door is open 10 to 14 V Below 1 V
B7-9 - Body ground All doors are closed open 10 to 14 V Below 1 V
B9-13 - Body ground Front driver's door is closed open 10 to 14 V Below 1 V
B7-24 - Body ground Front passenger's door is closed open 10 to 14 V Below 1 V
B7 B9
1H
E67349
OK REPAIR OR REPLACE HARNESS OR
CONNECTOR
NG
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05-1 131)
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1368
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