Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di rs cib01184
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DI-307
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
DI1NJ-14
DTC B0118/46 Short in Side Squib (LH) Circuit (to B+)
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 the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-2 .
DTC B0118/46 is recorded when a B+ short is detected in the side squib (LH) circuit.
DTC No. DTC Detecting Condition Trouble Area
S Short circuit in side squib (LH) wire harness (to B+) S Side airbag assembly (LH)
B0118/46 S Side squib (LH) malfunction S Airbag sensor assembly
S Airbag sensor assembly malfunction S Wire harness
WIRING DIAGRAM
See page DI-297 .
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-390 ).
2 Check side squib (LH) circuit.
ON CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the side airbag assembly side) be-
Airbag tween the side airbag assembly (LH) and the airbag sen-
Squib (LH) Sensor
Assembly sor assembly, measure the voltage between SFL+ and
body ground.
OK:
Voltage: 0 V
SFL+
(-) (+)
AB0119
H01016 NG Repair or replace harness or connector be-
H02119 H08265 tween side airbag assembly (LH) and airbag
sensor assembly.
OK
2002 ECHO (RM884U)
Author : Date : 477
DI-308
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
Squib (LH) PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
Airbag (b) Using a service wire, connect SFL+ and SFL- of the con-
Sensor
nector (on the side airbag assembly side) between the
Assembly
side airbag assembly (LH) and the airbag sensor assem-
bly.
(c) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
ON
CHECK:
SFL- SFL+
(a) Turn the ignition switch to ON and wait at least for 20 se-
conds.
(b) Clear the DTC stored in memory (See step 5 on page
DI-239 ).
DLC3 DTC B0118/46
(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 se-
CG Tc conds.
H01017
(e) Check the DTC (See page DI-239 ).
W03860 AB0119
H10600 H01072 H12858 OK:
DTC B0118/46 is not output.
HINT:
Codes other than code B0118/46 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 : 478
DI-309
DIAGNOSTICS - SUPPLEMENTAL RESTRAINT SYSTEM
4 Check side squib (LH).
PREPARATION:
Squib (LH) (a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag
tery, and wait at least for 90 seconds.
Sensor
Assembly (c) Connect the side airbag assembly (LH) connector.
(d) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
CHECK:
ON
(a) Turn the ignition switch to ON and wait at least for 20 se-
conds.
(b) Clear the DTC stored in memory (See step 5 on page
DI-239 ).
DLC3 DTC B0118/46 (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 se-
conds.
CG Tc (e) Check the DTC (See page DI-239 ).
H01018 OK:
AB0119
H10600 H01072 H12859 DTC B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag assembly (LH).
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 : 479
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