Page 1745 of 2543
Check D squib circuit.
For the connector for the center airbag sensor as-
sembly side) between center airbag sensor assem-
bly and front passenger airbag assembly, measure
the voltage between P
+ and body ground.
Voltage: 0 V
Check P squib circuit.
Disconnect center airbag sensor assembly connec-
tor.
For the connector (on the spiral cable side) between
the spiral cable and steering wheel pad, measure
the voltage between D
+ and body ground.
Voltage: 0 V
Repair or replace harness or connector between
the center airbag sensor assembly and front pas-
senger airbag sensor assembly.
RS±62± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTING
Page 1746 of 2543

Check center airbag sensor assembly.
(1) Turn ignition switch to LOCK.
(2) Disconnect negative (±) terminal cable from the
battery.
(3) Connect connector to center airbag sensor as±
sembly.
(4) Using a service wire, connect P+ and P± on
center airbag sensor assembly side of connec±
tor between center airbag sensor assembly and
from passenger airbag assembly.
(5) Using a service wire, connect P+ and P± on
center airbag sensor assembly side of connec±
tor between center airbag sensor assembly and
front passenger airbag assembly.
(6) Connect negative (±) terminal cable to battery,
and wait at least 2 seconds.
(1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory.
(See page RS±47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(5) Using SST, connect terminals Tc and E
1 of
DLC1 or DLC2.
SST 09843±18020
(6) Check diagnostic trouble code.
Diagnostic trouble code 12 is not output.
Codes other than code 12 may be output at this
time, but they are not relevant to this check.
Replace center airbag sensor assembly.
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTINGRS±63
Page 1747 of 2543

Check D squib.
(1) Turn ignition switch to LOCK.
(2) Disconnect negative (±) terminal cable from the
battery, and wait at least 90 seconds.
(3) Connect steering wheel pad connector.
(4) Connect negative (±) terminal cable to battery,
and wait at least 2 seconds.
(1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory.
(See page RS±47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(5) Using SST, connect terminals Tc and E
1 of
DLC1 or DLC2.
SST 09843±18020
(6) Check diagnostic trouble code.
Diagnostic trouble code 12 is not output.
Codes other than code 12 may be output at this
time, but they are not relevant to this check.
Check D squib.
(1) Turn ignition switch to LOCK.
(2) Disconnect negative (±) terminal cable from the
battery, and wait at least 90 seconds.
(3) Connect front passenger airbag assembly con±
nectar.
(4) Connect negative (±) terminal cable to battery,
and wait at least 2 seconds.
(1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory.
(See page RS±47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(5) Using SST, connect terminals Tc and E
1 of
DLC1 or DLC2.
SST 09843±18020
(6) Check diagnostic trouble code.
Diagnostic trouble code 12 is not output.
Codes other than code 12 may be output at this
time, but they are not relevant to this check.
Replace steering wheel pad.
Replace front passenger airbag assembly. RS±64
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTING
Page 1748 of 2543
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.
Check spiral cable.
Repair or replace spiral cable.
Repair or replace harness or connector between
center airbag sensor assembly and spiral cable.
(1) Turn ignition switch to LOCK.
(2) Disconnect connector between center airbag
sensor assembly and spiral cable.
(3) Turn ignition switch ON.
Measure voltage at D
+ on spiral cable side of connec-
tor between spiral cable and steering wheel pad.
Voltage: 0 V
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTINGRS±65
Page 1749 of 2543
DTC 13 Short in D Squib Circuit (Between D+
Wire Harness and D±
Wire Harness)
CIRCUIT DESCRIPTION
The D squib circuit consists of the center airbag sensor assembly, spiral cable and steering wheel pad.
It causes the airbag to deploy when the airbag deployment conditions are satisfied.
For details of the function of each component, see FUNCTION OF COMPONENTS on page RS±4.
Diagnostic trouble code 13 is recorded when a short is detected in the D
+ wire harness and D± wire harness
of the squib circuit.
DTC No.
Diagnosis
13
Short circuit between D+ wire harness and D± wire harness of squib.
D squib malfunction.
Spiral cable malfunction.
Center airbag sensor assembly malfunction.
RS±66± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTING
Page 1750 of 2543
INSPECTION PROCEDURES [P] Preparation [C] Check
Preparation.
(1) Disconnect negative (±) terminal cable from the
battery, and wait at least 90 seconds.
(2) Remove steering wheel pad (See page RS±10).
(3) Disconnect connector of front passenger airbag
assembly (See page RS±20).
Check D squib circuit.
For the connector (on the spiral cable side) be-
tween the spiral cable and steering wheel pad,
measure the resistance between D
+ and D±.
Resistance: 1 k or higher.
Store the steering wheel pad with the front surface
facing upward.
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTINGRS±67
Page 1751 of 2543

Check center airbag sensor assembly.
(1) Turn ignition switch to ACC or ON and wait at
least 20 seconds.
(2) Clear malfunction code stored in memory. (See
page RS±47)
(3) Turn ignition switch to LOCK, and wait at least
20 seconds.
(4) Remove the service wire which connects D
+ and
D± on spiral cable side of connector between
spiral cable and steering wheel pad.
(5) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(6) Using SST, connect terminals Tc and E
1 of DLC1
or DLC2.
SST 09843±18020
(7) Check diagnostic trouble code.
Diagnostic trouble code 13 is not output.
Codes other than code 13 may be output at this
time, but they are not relevant to this check.
Replace center airbag sensor assembly.
(1) Using a service wire, connect D+ and D± on spiral
cable side of connector between spiral cable and
steering wheel pad.
(2) Using a service wire, connect P+ and P± on cen±
ter airbag sensor assembly side of connector
between center airbag sensor assembly and
front passenger airbag assembly.
(3) Connect negative (±) terminal cable to battery, and
wait at least 2 seconds. RS±68
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTING
Page 1752 of 2543

(1) Turn ignition switch to LOCK, and wait at
least 20 seconds.
(2) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(3) Clear malfunction code stored in memory. (See
page RS±47)
(4) Turn ignition switch to LOCK, and wait at least
20 seconds.
(5) Turn ignition switch to ACC or ON, and wait at
least 20 seconds.
(6) Using SST, connect terminals Tc and E
1 of DLC1
or DLC2.
SST 09843±18020
(7) Check diagnostic trouble code.
Diagnostic trouble code 13 is not output.
Codes other than code 13 may be output at this
time, but they are not relevant to this check.
Replace steering wheel pad.
Check D squib.
(1) Turn ignition switch to LOCK.
(2) Disconnect negative (±) terminal cable
from the battery, and wait at least 90 sec±
onds.
(3) Connect steering wheel pad connector.
(4) Using a service wire, connect P
+ and P±.
(5) Connect negative (±) terminal cable to battery,
and wait at least 2 seconds.
From the results of the above inspection, the malfunctioning part can now be considered normal. To make
sure of this, use the simulation method to check.
± SUPPLEMENTAL RESTRAINT SYSTEMTROUBLESHOOTINGRS±69