1996 TOYOTA TERCEL steering wheel

R05899
AB0119
R14288
H00015
Airbag Sensor
Assembly
P Squib
D SquibSpiral
Cable
D+
(+) (-)ON
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-167
1996 TERCEL (RM440U)
7 Check spiral cable.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect connector between airbag sensor assembly
and spiral cable.
(c) Turn ignition switch ON.
CHECK:
Measure voltage at D+ on spiral cable side of connector be-
tween spiral cable and steering wheel pad and body ground.
OK:
Voltage: 0 V
NG Repair or replace spiral cable.
OK
Repair or replace harness or connector between airbag sensor assembly and spiral cable.

H00231
Airbag Sensor
Assembly
Spiral
Cable P Squib
D Squib
D+ D-
D+ D-
DI-168
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
DTC 14 Open in D Squib Circuit
CIRCUIT DESCRIPTION
The D squib circuit consists of the 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 components, see FUNCTION OF COMPONENTS on page RS-2.
DTC 14 is recorded when an open is detected in the D squib circuit.
DTC No.DTC Detection ConditionTrouble Area
14

Short circuit in D+ wire harness or D- wire harness of
squib

D squib malfunction

Spiral cable malfunction

Airbag sensor assembly malfunction
Steering wheel pad (D squib)

Spiral cable

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
Refer to page DI-155 for the WIRING DIAGRAM.
INSPECTION PROCEDURE
1 Preparation (See step 1 on page DI-177)
2 Check D squib circuit.
PREPARATION:
Using a service wire, connect D+, and D- on airbag sensor as-
sembly connector.
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and steering wheel pad, measure the resistance between
D
+ and D-.
OK:
Resistance: Below 1 W
NG Go to step 5.
OK
DI4ME-02

R05895
AB0118
R13006AB0069
AB0119
W02044H00017
Airbag Sensor
Assembly
Spiral
Cable
D SquibP Squib
D+
D-ACCON
or
DLC1
E1 TcCode 14
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-169
1996 TERCEL (RM440U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using a service wire, connect D
+ and D- on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored on memory (See page
DI-148).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

R05896
AB0118
R13006AB0119
W02044H00018
Airbag Sensor
Assembly
Spiral
Cable P Squib
D Squib
ACCON
or
DLC1
E1
TcCode 14
DI-170
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI-148).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
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.

R05899
R14286H00019
P Squib
D+
D-Airbag Sensor
Assembly
Spiral
Cable
D Squib
R14286R12688H00232
D- D+ P SquibAirbag Sensor
Assembly
Spiral
Cable
D SquibD+ D-
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-171
1996 TERCEL (RM440U)
5 Check spiral cable.
PREPARATION:
Disconnect connector between airbag sensor assembly and
spiral cable.
CHECK:
For the connector (on the spiral cable side) between the spiral
cable and steering wheel pad, measure the resistance between
D
+ and D-.
OK:
OK:
Resistance: Below 1 W
NG Repair or replace spiral cable.
OK
6 Check harness between airbag sensor assembly and spiral cable.
PREPARATION:
Using a service wire, connect D+ and D- on airbag sensor as-
sembly connector.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the airbag sensor assembly and spiral cable, measure
the resistance between D
+ and D-.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween airbag sensor assembly and spiral cable.
OK
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.

R05894 AB0117
H00001
Airbag Sensor
Assembly LOCK
Spiral
Cable D SquibP Squib
R14285 AB0119H00021
ON
Airbag Sensor Assembly
ACC
IG2
(+) (-)
DI-178
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Preparation.
PREPARATION:
(a) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(b) Remove steering wheel pad (See page SR-13).
(c) Disconnect connector of front passenger airbag assem-
bly (See page RS-21).
(d) Disconnect connector of airbag sensor assembly
(See page RS-33).
CAUTION:
Store the steering wheel pad with the front surface facing
upward.
2 Check source voltage.
PREPARATION:
(a) Connect negative (-) terminal cable to battery.
(b) Turn ignition switch ON.
CHECK:
Measure voltage at IG2 or ACC on sensor and operate electric
system. (defogger, wiper, headlight, heater blower, etc.)
OK:
Voltage: 10 - 14 V
NG Check the harness between battery and airbag
sensor assembly, check the battery and charg-
ing system.
OK

H00003
ON
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-179
1996 TERCEL (RM440U)
3 Does SRS warning light turn off?
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Connect steering wheel pad connector.
(c) Connect front passenger airbag assembly connector.
(d) Connect airbag sensor assembly connector.
(e) Turn ignition switch ON.
CHECK:
Operate electric system checked in defogger, wiper, headlight,
heater blower, etc. and check that SRS warning light goes off.
NO Check for DTCs. If a DTC is output, perform trou-
bleshooting for the DTC. If a normal code is out-
put, replace airbag sensor assembly.
YES
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.

H00234
D squibP squibAirbag Sensor
Assembly
Spiral
Cable LOCK
AB0117
N12639
H00026
Airbag Sensor Assembly LOCK
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-181
1996 TERCEL (RM440U)
INSPECTION PROCEDURE
1 Preparation.
PREPARATION:
(a) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(b) Remove steering wheel pad (See page SR-13).
(c) Disconnect connector of front passenger airbag assem-
bly (See page RS-21).
CAUTION:
Store the steering wheel pad with the front surface facing
upward.
2 Does SRS warning light turn off?
PREPARATION:
(a) Disconnect airbag sensor assembly connector.
(b) Connect negative (-) terminal cable to battery.
CHECK:
Check operation of SRS warning light.
NO Check SRS warning light circuit or terminal AB
circuit of DLC1.
YES
Replace airbag sensor assembly.