Toyota MR2 2000 - B7 Buckle Sw and Tension Reducer Lh; B8 Buckle Sw Rh and Seat Belt Warning Occupant Detection Sensor

2000 MR2 (EWD408U)
97
Current is always applied from the ECU–B fuse to comb. meter TERMINAL (B) 1.
SEAT BELT WARNING SYSTEM
When the ignition SW is turned on, the current flows from the GAUGE Fuse to comb. meter TERMINAL (B) 10. At this time,
to determine whether the driver is wearing the seat belt or not, a signal is input from the buckle SW (Driver side) to comb.
meter TERMINAL (A) 12. If the driver is not wearing the seat belt, the seat belt warning light in the comb. meter flashes and
buzzer to inform the driver. Also, a sensor installed in the front passenger seat determines whether there is a passenger
seated, and whether the seat belt is worn or not. If the seat belt is not worn, the signal from the buckle SW (Passenger side)
and the sensor is input to the comb. meter TERMINAL (B) 15, and the current flows from comb. meter TERMINAL (A) 20 to
passenger seat belt warning light TERMINAL 9 to TERMINAL 4 to GROUND, and the light flashes to inform.
B7 BUCKLE SW AND TENSION REDUCER LH
1–2 : Open with driver’s seat belt in use
B8 BUCKLE SW RH AND SEAT BELT WARNING OCCUPANT DETECTION SENSOR
1–2 : Open with passenger’s seat belt in use
C10 (A), C11 (B) COMBINATION METER
(A)12, (B) 8–GROUND : Always continuity
(B)15–GROUND : Continuity with the passenger’s door open
(B) 1–GROUND : Always approx. 12 volts
(B)10–GROUND : Approx. 12 volts with the ignition SW at ON position
T4 TENSION REDUCER SOLENOID LH
1–GROUND : Approx. 12 volts with the ignition SW at ON position
: PARTS LOCATION
Code See Page Code See Page Code See Page
A4 32 C10 A 32 T4 35
B7 32 C11 B 32
B8 32 J6 35
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
3 24 R/B No.3 (Left Side of Instrument Panel)
,,,
,,
,
,,,
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
6B
26
Instrument Panel Wire and J/B No 6 (Instrument Panel Brace LH)
6E
26 Instrument Panel Wire and J/B No.6 (Instrument Panel Brace LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IJ1
40
Floor Wire and Instrument Panel Wire (Right Kick Panel)
IJ2
40 Floor Wire and Instrument Panel Wire (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
IE 38 Left Kick Panel
IF 38 Instrument Panel Brace LH
IH 38 Right Kick Panel
BK 42 Under the Center Pillar RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I5 40 Instrument Panel Wire B6 42 Floor Wire
SYSTEM OUTLINE
SERVICE HINTS