Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 20v15 terecu40
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05-361
DIAGNOSTICS - TIRE PRESSURE WARNING SYSTEM
05BWB-01
TERMINALS OF ECU
w/o VSC:
S3
F45159
Symbols (Terminals No.) Wiring Color Condition Specified Condition
W-B -
GND1 (1) - Body ground Always Below 1
Body ground
Ignition switch ON and terminals TC - CG connected Below 1.0 V
TC (8) - GND1 (1) P-B W B
P B - W-B
Ignition switch ON and terminals TC - CG not connected 10 to 14 V
Brake pedal depressed 10 to 14 V
STP (16) - GND1 (1) G-W W B
G W - W-B
Brake pedal released Below 1.5 V
Ignition switch ON and tire pressure warning lamp ON 10 to 14 V
WTIR (21) - GND 1 (1) GR-L W B
GR L - W-B
Ignition switch ON and tire pressure warning lamp OFF Below 1.5 V
Ignition switch ON and tire pressure warning switch ON Below 3 V
INIT (22) - GND 1 (1) L-O W B
L O - W-B
Ignition switch ON and tire pressure warning switch OFF 10 to 14 V
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 544
05-362
DIAGNOSTICS - TIRE PRESSURE WARNING SYSTEM
w/ VSC:
S3
F45156
Symbols (Terminals No.) Wiring Color Condition Specified Condition
Pulse generation 1 ref-
ENG+ (9) - GND1 (32) P - W-B Ignition switch ON and vehicle speed 30 km/h (19 mph) or more
erence
Pulse generation 2 ref-
ENG- (23) - GND1 (32) V - W-B Ignition switch ON and engine idle speed
erence
Ignition switch ON and tire pressure warning lamp ON 10 to 14 V
WTIR (26) - GND1 (32) GR-L W B
GR L - W-B
Ignition switch ON and tire pressure warning lamp OFF Below 1.5 V
Brake pedal depressed 10 to 14 V
STP1 (27) - GND1 (32) G-W W B
G W - W-B
Brake pedal released Below 1.5 V
W-B -
GND1 (32) - Body ground Always Below 1
Body ground
Ignition switch ON and tire pressure warning switch ON Below 3 V
INIT (41) - GND1 (32) L-O W B
L O - W-B
Ignition switch ON and tire pressure warning switch OFF 10 to 14 V
Pulse generation 1:
Reference
Item Condition
Terminal ENG+ - GND1
Tool setting 1 V / DIV, 0.5 ms / DIV
Vehicle condition Engine idle speed
GND
F45157
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 545
05-363
DIAGNOSTICS - TIRE PRESSURE WARNING SYSTEM
Pulse generation 2:
Reference
Item Condition
Terminal ENG- - GND1
Tool setting 1 V / DIV, 0.5 ms / DIV
Vehicle condition Engine idle speed
GND
F45158
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 546
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