Toyota 1994 CAMRY Repair Manual page 178

SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
SYSTEM OUTLINE
THE SRS (SUPPLEMENTAL RESTRAINT SYSTEM) IS A DRIVER AND PASSENGER PROTECTION DEVICE WHICH HAS A
SUPPLEMENTAL ROLE TO THE SEAT BELTS.
WHEN THE IGNITION SW IS TURNED TO ACC OR ON, CURRENT FROM THE CIG/RADIO FUSE FLOWS TO TERMINAL 14 OF THE
CENTER AIRBAG SENSOR ASSEMBLY. ONLY WHEN THE IGNITION SW IS ON DOES THE CURRENT FROM THE IGN FUSE FLOW TO
TERMINAL 13.
IF AN ACCIDENT OCCURS WHILE DRIVING, DECELERATION CAUSED BY A FRONTAL IMPACT IS DETECTED BY EACH SENSOR AND
SWITCH, AND WHEN THE FRONTAL IMPACT EXCEEDS A SET LEVEL (WHEN THE SAFING SENSOR BUILT INTO THE CENTER AIRBAG
SENSOR ASSEMBLY IS ON AND THE CENTER AIRBAG SENSOR IS ON, FRONT AIRBAG SENSORS ARE OFF), CURRENT FROM THE
CIG/RADIO OR IGN FUSE FLOWS TO TERMINALS 2, 3 OF THE CENTER AIRBAG SENSOR ASSEMBLY
SQUIB SQUIB TERMINAL 2
GROUND GROUND.
WHEN THE SAFING SENSOR BUILT INTO THE CENTER AIRBAG SENSOR ASSEMBLY IS ON AND THE FRONT AIRBAG SENSOR LH OR
RH IS ON, CENTER AIRBAG SENSOR IS OFF CURRENT FROM THE CIG/RADIO OR IGN FUSE FLOWS TO TERMINALS 2, 3 OF THE
CENTER AIRBAG SENSOR ASSEMBLY
CENTER AIRBAG SENSOR ASSEMBLY
TERMINAL 9 OR 10 OF CENTER AIRBAG SENSOR ASSEMBLY
WHEN THE SAFING SENSOR BUILT INTO THE CENTER AIRBAG SENSOR ASSEMBLY IS ON, AND THE FRONT AIRBAG SENSOR LH OR
RH IS ON AND CENTER AIRBAG SENSOR IS ON ONE OF THE ABOVE–MENTIONED CIRCUITS IS ACTIVATED SO THAT CURRENT
FLOWS TO THE AIRBAG SQUIB AND CAUSES IT TO OPERATE. THE BAG STORED INSIDE THE STEERING WHEEL PAD IS
INSTANTANEOUSLY EXPANDED TO SOFTEN THE SHOCK TO THE DRIVER.
: PARTS LOCATION
CODE SEE PAGE
A15 32
C 3 32
C10 32
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODE SEE PAGE
1F
20 20
1M
3D 24
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODE SEE PAGE
IP1
44 44
IP3
: GROUND POINTS
CODE SEE PAGE
IE 42
IG 42
178
TERMINALS 1, 4 OF CENTER AIRBAG SENSOR ASSEMBLY
TERMINAL 1 OF THE AIRBAG SQUIB
TERMINAL 8 OR 11
CODE
D 1
D 3
F 1
JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
COWL WIRE AND J/B NO. 1 (INSTRUMENT PANEL LEFT) COWL WIRE AND J/B NO 1 (INSTRUMENT PANEL LEFT)
COWL WIRE AND J/B NO. 3 (BEHIND COMBINATION METER)
JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
ENGINE WIRE AND COWL WIRE ENGINE WIRE AND COWL WIRE
GROUND POINTS LOCATION
LEFT KICK PANEL
INSTRUMENT PANEL BRACE LH
SQUIB
TERMINAL 1 OF FRONT AIRBAG SENSOR
TERMINAL 6, TERMINAL 5 OR BODY GROUND
SEE PAGE
28 (1MZ–FE), 30 (5S–FE)
32
28 (1MZ–FE), 30 (5S–FE)
TERMINAL 1 OF THE AIRBAG
TERMINAL 6, TERMINAL 5 OR BODY
TERMINAL 2 TERMINALS 1, 4 OF
TERMINAL 2
GROUND.
CODE SEE PAGE
F 2 28 (1MZ–FE), 30 (5S–FE)
J 4 33