CIRCUIT DESCRIPTION The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad. It causes the SRS to deploy when the SRS deployment conditions are satisfied. For details of the function of each component, see OPERATION on page RS-2 . DTC B0103/12 is recorded when a B+ short is detected in the D squib circuit. DTC No.
B0103/12
DTC Detecting Condition
Trouble Area
Short circuit in D squib wire harness (to B+) D squib malfunction Spiral cable malfunction Airbag sensor assembly malfunction
Prepare for inspection (See step 1 on page DI-390 ).
2
Check D squib circuit.
D Squib Airbag Sensor Assembly
Spiral Cable
CHECK: (a) Turn the ignition switch to ON. (b) For the connector (on the spiral cable side) between the spiral cable and the steering wheel pad, measure the voltage between D+ and body ground. OK: Voltage: 0 V
ON D+
(-) H01001 AB0119 H02146
(+)
NG
Go to step 5.
H04689
OK
2002 ECHO (RM884U)
Author:
Date:
437
DI-268 DIAGNOSTICS
3
-
SUPPLEMENTAL RESTRAINT SYSTEM
Check airbag sensor assembly. →←
D Squib Spiral Cable
D-
D+
DLC3
CG
H01002 H02144 AB0119 H10600 W02043
Airbag Sensor Assembly
ON
DTC B0103/12
Tc H10608
PREPARATION: (a) Connect the connector to the airbag sensor assembly. (b) Using a service wire, connect D+ and D- of the connector (on the spiral cable side) between the spiral cable and the steering wheel pad. (c) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds. CHECK: (a) Turn the ignition switch to ON, and wait at least for 20 seconds. (b) Clear DTC stored in memory (See step 5 on page DI-239 ). (c) Turn the ignition switch to LOCK, and wait at least for 20 seconds. (d) Turn the ignition switch to ON, and wait at least for 20 seconds. (e) Check DTC (See page DI-239 ). OK: DTC B0103/12 is not output. HINT: Codes other than code B0103/12 may be output at this time, but they are not relevant to this check. NG
Replace airbag sensor assembly.
OK
2002 ECHO (RM884U)
Author:
Date:
438
DI-269 DIAGNOSTICS
4
SUPPLEMENTAL RESTRAINT SYSTEM
Check D squib.
→← Spiral Cable
Airbag Sensor Assembly
D Squib
ON
DLC3
CG
-
DTC B0103/12
Tc
H01003 AB0019 H10600 W02043
H10609
PREPARATION: (a) Turn the ignition switch to LOCK. (b) Disconnect negative (-) terminal cable from the battery, and wait at least for 90 seconds. (c) Connect the steering wheel pad connector. (d) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds. CHECK: (a) Turn the ignition switch to ON, and wait at least for 20 seconds. (b) Clear DTC stored in memory (See step 5 on page DI-239 ). (c) Turn the ignition switch to LOCK, and wait at least for 20 seconds. (d) Turn the ignition switch to ON, and wait at least for 20 seconds. (e) Check DTC (See page DI-239 ). OK: DTC B0103/12 is not output. HINT: Codes other than code B0103/12 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. If the malfunctioning part can not be detected by the simulation method, replace all SRS components including the wire harness.
2002 ECHO (RM884U)
Author:
Date:
439
DI-270 DIAGNOSTICS
5
-
SUPPLEMENTAL RESTRAINT SYSTEM
Check spiral cable.
Airbag Sensor Assembly
Spiral Cable D Squib
←→
ON D+
(-)
PREPARATION: (a) Turn ignition switch to LOCK. (b) Disconnect the connector between the airbag sensor assembly and the spiral cable. CHECK: (a) Turn the ignition switch to ON. (b) For the connector (on the spiral cable side) between the spiral cable and the steering wheel pad, measure the voltage between D+ and body ground. OK: Voltage: 0 V
(+)
H01000 AB0119 H02146
H02202
NG
Repair or replace spiral cable.
OK
6
Check harness between airbag sensor assembly and spiral cable. ON
Airbag Sensor Assembly
Spiral Cable D Squib
CHECK: (a) Turn the ignition switch to ON. (b) For the connector (on the spiral cable side) between the spiral cable and airbag sensor assembly, measure the voltage between D+ and body ground. OK: Voltage: 0 V
D+ (-) AB0119 H01004 H02146
(+) H10610
NG
Repair or replace harness between 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. If the malfunctioning part can not be detected by the simulation method, replace all SRS components including the wire harness. 2002 ECHO (RM884U)
Short in Side Squib (RH) Circuit (to B+). CIRCUIT DESCRIPTION. The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly ...
CIRCUIT DESCRIPTION. The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (LH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly (RH). It causes the SRS to deploy when ...
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B0101/14. Open in D Squib Circuit. CIRCUIT DESCRIPTION. The D squib circuit consists of the airbag sensor assembly, spiral cable and steering wheel pad.
CIRCUIT DESCRIPTION. The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (LH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly (RH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The P/T squib (LH) circuit consists of the airbag sensor assembly and seat belt pretensioner (LH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The P/T squib (RH) circuit consists of the airbag sensor assembly and seat belt pretensioner (RH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The P squib circuit consists of the airbag sensor assembly and front passenger airbag assembly. It causes the SRS to deploy when the ...
CIRCUIT DESCRIPTION. The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (LH). It causes the SRS to deploy when ...
CIRCUIT DESCRIPTION. The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly (RH). It causes the SRS to deploy when ...
The P/T squib circuit (RH) consists of the airbag sensor assembly and seat belt ... â¢Open circuit in PR+ wire harness or PR- wire harness of ... WIRING DIAGRAM.
CIRCUIT DESCRIPTION. The P/T squib (LH) circuit consists of the airbag sensor assembly and seat belt pretensioner (LH). It causes the SRS to deploy when ...
wait at least for 2 seconds. CHECK: (a) Turn the ignition switch to ON and wait at least for 20 se- conds. (b) Clear DTC stored in memory. (See page DI-239 ).
Risk of irreversible magnet demagnetization during short-circuit fault is analyzed in case of an axial-flux dual-rotor machine, using a three-dimensional ...
current flowing through the outputs can destroy the device. To avoid this risk can be useful to add a circuitry to protect the device : in this case, to have a total pro-.
