Page 185 of 2870

AB-53
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK PASSENGERS AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the glove box.
3) Disconnect the passenger’s airbag connec-
tor (AB27) and (AB4).
4) Connect the connector (1P) in test harness
P to connector (AB4).
5) Connect the airbag resistor to connector
(2P), (3P) in test harness P.
6) Connect the battery ground cable and turn
the ignition switch to ON. Is the airbag warning light
turned on normally?Replace the pas-
senger airbag
module.
AB-15, Passen-
ger’s Airbag Mod-
ule.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag resistor from the
connector in test harness P.
3) Remove the instrument panel lower cover
and disconnect the connector (AB21) from
(AB26).
4) Disconnect the connector (AB3) from the
airbag control module, and connect the con-
nector (1R) in test harness R.
Airbag Control Module.>
5) Connect the battery ground cable and turn
the ignition switch to ON.
6) Measure the voltage between connector
(2R) in test harness R and the chassis ground.
Connector & terminal
(2R) No. 3 (+) — Chassis ground (
−):
(2R) No. 5 (+) — Chassis ground (
−): Is the voltage less 1 V? Replace the airbag
control module.
Airbag Control
Module.>Replace the airbag
main harness with
body harness.
Page 186 of 2870
AB-54
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
E: DTC 21
DIAGNOSIS:
Airbag control module is faulty.
CAUTION:
Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
After replacing the airbag module, seat belt pretensioner, roll connector, control module or sensor,
reconnect each part and confirm that the airbag warning light operates properly.
Step Check Yes No
1 CHECK IF DTC 21 IS INDICATED.
Read the DTC.
tic Trouble Code (DTC).>Is the airbag warning light DTC
21 indicated?Replace the airbag
control module.
Airbag Control
Module.>Perform the clear
memory mode.
Clear Memory
Mode.>
Page 187 of 2870
AB-55
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
F: DTC 22
1. LHD MODEL
WIRING DIAGRAM:
This code is indicated when the front airbag and the pretensioner are in operation.
Once this code is indicated, memory is not erasable; therefore replace the following parts.
Airbag control module.
Driver’s airbag module.
Passenger’s airbag module.
Front sub-sensor of both sides.
Front seat belt outer with pretensioner of both sides.
AB-00743
AB3AB4
1234
AB3AB8AB7
AB20
6
1
2
52
1
AB4AB193
41
21
2
14
137
811
10
AB21
AB26
AB222
1
1
AB20
AB19
AB21
AB2
12
12
AB7AB8 AIRBAG CONTROL MODULE
STEERING
ROLL
CONNECTOR
PRETENSIONER LHINFLATOR
(DRIVER SIDE)INFLATOR
(PASSENGER SIDE)
PRETENSIONER RH
1234567891011121314151617
1819202122232425262728
123456
789101112
123456
789101112
Page 188 of 2870
AB-56
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
2. RHD MODEL
WIRING DIAGRAM:
This code is indicated when the front airbag, pretensioner and lap pretensioner are in operation.
Once this code is indicated, memory is not erasable; therefore replace the following parts.
Airbag control module.
Driver’s airbag module.
Passenger’s airbag module.
Front sub-sensor of both sides.
Front seat belt outer with pretensioner of both sides.
AB-00744
AB3AB4
1234
AB3AB8AB7
AB20
6
1
2
52
1
AB4AB193
41
21
2
14
137
811
10
AB21
AB26
AB222
1
1
AB20
AB19
AB21
AB2
12
12
AB7AB8 AIRBAG CONTROL MODULE
STEERING
ROLL
CONNECTOR
PRETENSIONER LHINFLATOR
(DRIVER SIDE)INFLATOR
(PASSENGER SIDE)
PRETENSIONER RH
AB25
12
AB251
2
LAP SEAT BELT
PRETENSIONER
4 3
123456
789101112
123456
789101112
1234567891011121314151617
1819202122232425262728
Page 189 of 2870

AB-57
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
G: DTC 23
DIAGNOSIS:
(AB3), (AB7) and (AB8) are not connected properly to airbag control module.
CAUTION:
Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
Step Check Yes No
1 CHECK POOR CONTACT IN CONECTORS
(AB3), (AB7) AND (AB8).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connectors (AB3), (AB7)
and (AB8) from the airbag control module.
Check if rust or damage
appear on the harness con-
nector and the control module
connector.Replace the airbag
control module.
Airbag Control
Module.> Replace
the airbag main
harness with body
harness.Replace
the side airbag
harness with body
harness.Go to step 2.
2 CHECK POOR CONTACT IN CONECTORS
(AB3), (AB7) and (AB8).
1) Ensure that connectors are firmly recon-
nected.
2) Connect the battery ground cable and turn
the ignition switch to ON.Is the airbag warning light
turned on normally? Finish the diagno-
sis.Replace the airbag
control module.
Airbag Control
Module.>
Page 190 of 2870
AB-58
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
H: DTC 24
DIAGNOSIS:
Airbag control module is faulty.
Airbag main harness circuit is open.
Fuse No. 11 (in fuse and relay box) is blown.
Body harness circuit is open.
CAUTION:
Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
After replacing the airbag module, seat belt pretensioner, roll connector, control module or sensor,
reconnect each part and confirm that the airbag warning light operates properly.
When inspecting the airbag main harness, disconnect the driver’s airbag module and passenger’s
airbag module connectors for safety reasons.
1. LHD MODEL
WIRING DIAGRAM:
AB-00623
AB3
AIRBAG CONTROL MODULEAB3
B31
AB1
AB1
1
6
BATTERY
IG SW
NO.11
B31
12
34561
23 45 61234567891011121314151617
1819202122232425262728
Page 191 of 2870

AB-59
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from the
airbag control module.
Control Module.>
3) Connect the connector (1R) in test harness
R to connector (AB3).
4) Connect the battery ground cable and turn
the ignition switch to ON.
5) Measure the voltage between connector
(2R) in test harness R and chassis ground.
Connector & terminal
(2R) No. 1 (+) — Chassis ground (
−): Is the voltage more than 10 V? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag connector (AB1)
from the body harness (B31).
3) Connect the connector (2M) in test harness
M to connector (AB1).
4) Measure the resistance between connector
(5M) in test harness M and the connector (2R)
in test harness R.
Connector & terminal
(5M) No. 2 — (2R) No. 1: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness with
body harness.
3 CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the
above-mentioned condition maintained.
Connector & terminal
(5M) No. 2 — Chassis ground:
(2R) No. 1 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 4.Replace the airbag
main harness with
body harness.
4 CHECK FUSE No. 11 (IN JOINT BOX).
1) Confirm that the ignition switch is turned
OFF.
2) Remove the fuse No. 11 (in fuse and relay
box) and perform visual inspection.Is the fuse No. 11 blown out? Replace the fuse
No. 11. If fuse No.
11 blows out
again, repair the
body harness. Repair the body
harness.
Page 192 of 2870
AB-60
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
2. RHD MODEL
WIRING DIAGRAM:
AB-00745
AB3
AIRBAG CONTROL MODULEAB3
B31
AB1
AB1
6
6
BATTERY
NO.11
B31
12
34561
23 45 6
1234567891011121314151617
1819202122232425262728
IGNITION
SWITCH