AB(diag)-84
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
AE:DTC 72 PASSENGER’S AIRBAG FAILURE
DTC DETECTING CONDITION:
• Airbag main harness circuit is open, shorted or shorted to ground.
• Airbag module harness (Passenger’s side) circuit is open, shorted or shorted to ground.
• Passenger’s airbag module is faulty.
• 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 the battery, and wait 20 seconds or more before starting to work.
• When replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, reconnect each part and check that the warning light operates properly.
• When inspecting the airbag main harness, disconnect the airbag module connectors of the driver’s
and passenger’s seats for safety.
• When inspecting the airbag rear harness, disconnect the side airbag module connector, curtain
airbag module connector and seat belt pretensioner connector for safety reasons.
NOTE:
Prior to starting work, prepare two airbag resistors (98299PA040).
WIRING DIAGRAM:
Step
Check
Yes
No
1
CHECK POOR CONTACT IN CONNECTORS.
Check for poor contact of the connectors
between the airbag control module and the pas-
senger’s airbag module.
Is there poor contact?
Replace the airbag
main harness
along with body
harness.
Go to step 2.
2
CHECK PASSENGER’S AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 20 sec-
onds or more.
2) Remove the instrument panel side cover on
the passenger’s side and disconnect the con-
nector (AB10) from (AB9).
3) Connect the connector (1P) in the test har-
ness P to connector (AB9).
4) Connect the airbag resistor to the connec-
tors (2P) and (3P) of test harness P.
5) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Replace the pas-
senger’s airbag
module. <Ref. to
AB-15, Passen-
ger’s Airbag Mod-
ule.>
Go to step 3.
AB6
AB9
AB10
3
4
3
4
2
1
1
2
AB6
AB9
1 2 3 4
AB-01762
18 19 20
21 22 23 24 25 26 27 28
1 2 3
5 6 7 8
10
9
4
11 12 13 14
16 17
15
29 30
AIRBAG CONTROL MODULE
PASSENGER'S
AIRBAG MODULE