Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20ahm cic12494
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05-496
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM 05CCB-03
DTC C1249/49 OPEN CIRCUIT IN STOP LIGHT SWITCH
CIRCUIT
CIRCUIT DESCRIPTION
DTC No. DTC Detecting Condition Trouble Area
S When IG1 terminal voltage is 9.5 to 17.2 V, open circuit of S Stop light switch
C1249 / 49
the stop light switch continues for 0.3 sec. or more. S Stop light switch circuit
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 679
05-497
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
WIRING DIAGRAM
Skid Control ECU
S12 with Actuator
J2
Stop Light SW
J/C J/C
W (*2) G-W G-W (*1) 19 5 G-W (*1) 27
J6 J5 S3 STP1
W (*1) 2 1 A A
A
G-W G-W (*2)
R/B No.6 G-W
(*1) Drive Side J/B
(*2)
21 3
J15 BRK 6 G-W
4 1C 1P
J/C Relay
W (*1)
17
6 6 G-W
C C 5 3 G-Y (*1) 1L
C 16
W-R (*1)
6 6 S3 STPO
W (*1) 1 2
R21
Rear Combination Light RH J/C
11 3
W-B G-W G-W
J32 J31
J37 2 4
J/C Stop
G-W G-W
36 35 H15
34 Hight Mounted Stop Light
17
R19 G-W G-W W-B
BG1
Rear Combination Light LH 1 2
W-B
2 3
Stop W-B
Driver Side J/B
16 STOP 1 A
W (*2) W J38
1C 1A J/C
W (*1)
A
FL Block A
W-B
FL MAIN W 1 1 J41
F6 F7 J/C
ALT
BL BM BN
Battery
*1: w/ Dynamic Laser Cruise Control
*2: Except *1
F50613
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 680
05-498
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
INSPECTION PROCEDURE
1 INSPECT STOP LAMP SWITCH ASSY
(a) Check that the stop light comes on when the brake pedal is depressed and goes off when the brake
pedal is released.
NG Go to step 4
OK
2 INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(STP TERMINAL)
(a) Disconnect the brake actuator connector.
(b) Measure the voltage between terminal STP of the skid
control ECU and body ground when brake pedal is de-
pressed.
OK:
Voltage: 8 to 14 V
(c) Measure the voltage between terminal STP of the skid
control ECU and body ground when brake pedal is re-
STP
F45081 leased.
OK:
Voltage: 1 V or less
OK REPLACE ABS & TRACTION ACTUATOR ASSY
(See page 32-46 )
NG
3 CHECK HARNESS AND CONNECTOR(STOP LIGHT SWITCH - SKID CONTROL
ECU)
(a) Check for an open or short circuit in harness and connector between the stop light switch and skid
control ECU (See page 01-37 ).
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
4 CHECK HARNESS AND CONNECTOR(STOP LIGHT CIRCUIT)
OK REPLACE STOP LAMP SWITCH ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 681
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