2005 SCION tC (EWD572U)
159
Current is always applied from the ECU–B fuse to TERMINAL 3 of the combination meter. When the ignition SW is turned to
ON position, the current from the MET IG2 fuse flows to TERMINAL 4 of the combination meter.
Seat Belt Warning System
When the ignition SW turned on, a signal is input to the combination meter. To determine whether the driver has fastened the
seat belt, a signal is input from the front seat inner belt (Driver’s side) to TERMINAL 5 of the combination meter. When the
seat belt is not fastened, the seat belt warning light in the combination meter blinks, and emits a warning sound.
In addition, the front passenger is recognized by a sensor (Occupant detection sensor) is installed in the front passenger
seat, and determines whether the seat belt is fastened. When not fastened, the signals from the front seat inner belt (Front
passenger’s side) is input to TERMINAL 22 of the combination meter, and the passenger’s seat belt warning lamp blinks.
F7 Front Seat Inner Belt (Driver’s Side)
2–1 : Open with the driver’s seat belt in use
F8 Front Seat Inner Belt (Front Passenger’s Side)
3–1 : Continuity with the passenger sit on the front passenger seat and front passenger’s seat belt not use
C6 Combination Meter
3–Ground : Always approx. 12 volts
4–Ground : Approx. 12 volts with the ignition SW at ON position
1–Ground : Always continuity
: Parts Location
Code See Page Code See Page Code See Page
A7 34 J1 35 J9 35
C6 34 J4 A 35 J10 36
F7 36 J5 B 35
F8 36 J7 35
:
Relay Blocks
Code See Page Relay Blocks (Relay Block Location)
2 22 Engine Room R/B (Engine Compartment Left)
:
Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1B 24 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
1M
1P
25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
1S
:
Connector Joining Wire Harness and Wire Harness
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC2 40 Floor Wire and Instrument Panel Wire (Left Kick Panel)
IH1 42 Engine Wire and Instrument Panel Wire (Cowl Side Panel RH)
IJ1 42 Floor No.2 Wire and Instrument Panel Wire (Right Kick Panel)
:
Ground Points
Code See Page Ground Points Location
ED 38 Front Left Side of the Cylinder Head
IH 40 Cowl Brace RH
BI 44 Quarter Panel LH
System Outline
Service Hints
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