Page 577 of 2453
OD(diag)-9
General Description
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
•TEST HARNESS Y
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
28299AG040 TEST HARNESS Y Used for diagnosing a failure of the seat belt
buckle switch.
ST98299AG040
2Y1Y
1Y
1Y
2Y
2Y
AB-01069
12
12
1212
Page 578 of 2453
OD(diag)-10
General Description
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
•TEST HARNESS AB
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
98299XA000 TEST HARNESS
AB
Used when measuring voltage and resistance of
occupant detection system.
OD-00029
1AB2AB
4
3
2
1
6
5
4
3
2
1
6
5
65
32
4
1
45
12
6
3
Page 579 of 2453
OD(diag)-11
General Description
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
•TEST HARNESS AE
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
98299XA030 TEST HARNESS
AE
TEST HARNESS Y ADAPTER HARNESS
Used for diagnosing a failure of the seat belt
buckle switch.
OD-00026
1AE2AE
2
1
12
2
1
12
Page 580 of 2453
OD(diag)-12
General Description
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
•TEST HARNESS AC
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
98299XA010 TEST HARNESS
AC
Used for diagnosing a failure of the seat belt ten-
sion sensor.
OD-00027
A
B
C
ACB
AC
Page 581 of 2453
OD(diag)-13
General Description
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
•TEST HARNESS AD
2. GENERAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
98299XA020 TEST HARNESS
AD
Used when measuring voltage and resistance of
seat belt tension sensor.
TOOL NAME REMARKS
Circuit tester Used for measuring resistance, voltage and current.
OD-00028
1AD2AD
3
2
1
3123
2
1
312
Page 582 of 2453
OD(diag)-14
Electrical Component Location
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
4. Electrical Component Location
A: LOCATION
(1) Occupant detection control mod-
ule
(3) Airbag ON/OFF indicator light
(Warning box)
(4) Buckle switch (Passenger's seat)
(5) Seat belt tension sensor
(2) Occupant detection sensor
(1)
(2)
(5)
(4)(3)
OD-00019
OD-00016
(1)
OD-00015
(2)
OD-00018
(3)
OD-00017
(4)
Page 583 of 2453
OD(diag)-15
Airbag Connector
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
5. Airbag Connector
A: PROCEDURE
1. BUCKLE SWITCH
1) How to disconnect:
(1) Move the slide lock (A) in the direction of ar-
row.
(2) While holding the slide lock (A) in moved po-
sition, disconnect the connector.
CAUTION:
When pulling the slide lock or disconnecting
connector, be sure to hold the connector, not
the harness.
2) How to connect:
Holding the connector (A), and push it in carefully
until a clicking sound is heard.
CAUTION:
Be sure to insert the connector in until it is
locked. Then pull it gently to make sure that it is
locked.
AB-00721
(A)
AB-00016
Page 584 of 2453

OD(diag)-16
Control Module I/O Signal
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
6. Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
CAUTION:
Never remove the occupant detection control module, occupant detection sensor or seat frame be-
cause they are integrated into one unit.
B: WIRING DIAGRAM
Refer to the electrical wiring diagrams.
Te r m i n a l N a m eTe r m i n a l
No.Input/Output value Remarks
IG – power supply 9 9 — 16 V When ignition switch ON
Airbag control module com-
munication(COM) 10 Open collector terminal Communication line
Airbag control module com-
munication(GND) 5 0 V Ground
Belt tension sensor
(Vcc) 5 0 — 5 V Belt tension sensor power supply
(Vout) 16 0.5 — 4.5 V Sensor output voltage
(GND) 14 0 V Sensor ground
Occupant detection sensor
(Vcc) 6 0 — 5 V Pressure sensor power supply
(Vout) 7 0.5 — 4.5 V Sensor output voltage
(GND) 15 0 V Sensor ground
Buckle switch 1 0 — IG voltage Ignition voltage when switch ON
Buckle switch (GND) 2 0 V Switch ground