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![SUBARU LEGACY 1997 Service Repair Manual 2. AIRBAG CONNECTOR VIBRATION INSPECTION
Conduct vibration inspection on airbag connectors (AB2)
through (AB8). <Ref. to 5-5b [T100].>
: Do the connectors (AB2) through (AB8) mal-
function again when SUBARU LEGACY 1997 Service Repair Manual 2. AIRBAG CONNECTOR VIBRATION INSPECTION
Conduct vibration inspection on airbag connectors (AB2)
through (AB8). <Ref. to 5-5b [T100].>
: Do the connectors (AB2) through (AB8) mal-
function again when](/manual-img/17/57434/w960_57434-3144.png)
2. AIRBAG CONNECTOR VIBRATION INSPECTION
Conduct vibration inspection on airbag connectors (AB2)
through (AB8).
: Do the connectors (AB2) through (AB8) mal-
function again when shaking?
: Replace faulty airbag component parts.
: Go to step3.
NOTE:
Gently shake each airbag connector.
G5M0461
3. SHOWERING INSPECTION TO BODY
Spray water on vehicle body.
CAUTION:
Do not directly spray water on airbag components.
: Does water leak into the passenger com-
partment when showering vehicle?
: Replace faulty airbag component parts.
: Go to step4.
NOTE:
If leaks are noted, also check wiring harnesses as water
may leak along them and wet airbag connectors.
4. FUSE No. 16, AIRBAG MAIN HARNESS, AIRBAG
CONTROL MODULE, BODY HARNESS APPEARANCE
INSPECTION
Conduct appearance inspection on fuse No. 16
5-5b [T5H3].>, airbag main harness
[W4A0].>, airbag control module
and body harness.
: Is there anything unusual about the appear-
ance of fuse No. 16, airbag main harness,
airbag control module or body harness?
: Replace faulty airbag component parts.
: Go to step5.
NOTE:
Also check connectors, terminals, wiring harness and case
for damage.
42
5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code
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5. FUSE No. 16, AIRBAG MAIN HARNESS, BODY
HARNESS VIBRATION INSPECTION
Conduct vibration inspection on fuse No. 16, airbag main
harness and body harness.
CAUTION:
Do not shake or vibrate airbag control module.
: Do fuse No. 16, airbag main harness or body
harness malfunction again when shaking?
: Replace faulty airbag component parts.
: Go to step6.
NOTE:
Gently shake each part.
G5M0461
6. SHOWERING INSPECTION TO BODY
Spray water on vehicle body.
CAUTION:
Do not directly spray water on each part.
: Does water leak into the passenger com-
partment when showering vehicle?
: Replace faulty airbag component parts.
: Go to step7.
NOTE:
If leaks are noted, check wiring harnesses as water may
leak along them and get parts wet.
7. WARNING LIGHT ILLUMINATION CHECK
Turn ignition switch“ON”(engine off) and observe airbag
warning light.
: Does the airbag warning light comes on for
about 7 seconds, then go out and stay out?
: Clear memory.
:Goto“DIAGNOSTICS PROCEDURE”.
43
5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
5. Diagnostics Chart with Trouble Code
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1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the cruise
control command switch.
CAUTION:
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuits.
Be careful not to damage Airbag system wiring har-
ness when servicing the cruise control command
switch.
B6M0171A
B6M0241A
2. Pre-inspection
1. CRUISE CONTROL CABLE
1) Cable installation
(1) Ensure that cruise control cable is attached to the left
of accelerator cable (on accelerator pedal side).
(2) Ensure that accelerator cable throttle cam does not
move when cruise control throttle cam is moved by hand.
(3) Ensure that throttle cam moves smoothly.
2) Cable free play
(1) Ensure that throttle cam-to-lever clearance is within
specifications.
Standard value: 1
0
1mm (0.040
0.04in)
NOTE:
If clearance is not within specifications, adjust cable at its
outer end.
(2) Ensure that cap is positioned in groove.
2
6-2BODY ELECTRICAL SYSTEM
1. Supplemental Restraint System“Airbag”- 2. Pre-inspection
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1. Supplemental Restraint System
“Airbag”
Airbag system wiring harness is routed near the cruise
control command switch.
CAUTION:
All Airbag system wiring harness and connectors
are colored yellow. Do not use electrical test equip-
ment on these circuits.
Be careful not to damage Airbag system wiring har-
ness when servicing the cruise control command
switch.
B6M0171A
B6M0241A
2. Pre-inspection
1. CRUISE CONTROL CABLE
1) Cable installation
(1) Ensure that cruise control cable is attached to the left
of accelerator cable (on accelerator pedal side).
(2) Ensure that accelerator cable throttle cam does not
move when cruise control throttle cam is moved by hand.
(3) Ensure that throttle cam moves smoothly.
2) Cable free play
(1) Ensure that throttle cam-to-lever clearance is within
specifications.
Standard value: 1
0
1mm (0.040
0.04in)
NOTE:
If clearance is not within specifications, adjust cable at its
outer end.
(2) Ensure that cap is positioned in groove.
2
6-2BODY ELECTRICAL SYSTEM
1. Supplemental Restraint System“Airbag”- 2. Pre-inspection
Page 3149 of 3342
B6M0269A
2. VACUUM HOSE AND PIPE
Check vacuum hose and pipe (which connects actuator
and vacuum pump) for disconnection or cracks.
B6M0270A
3. ACTUATOR
1) Disconnect vacuum hose from actuator.
B6M0174
2) Connect vacuum pump as shown in figure.
3) Make sure that cruise control cable moves smoothly
and quickly when a vacuum pressure of 40.0 kPa (300
mmHg, 11.81 inHg) is applied to actuator.
Stroke: 35 mm (1.38 in)
4) When vacuum pressure is released from condition 3)
above, make sure the cable returns to its original position
smoothly and quickly.
5) After inspection, disconnect vacuum pump and connect
vacuum hose.
4. POWER SUPPLY
1) Measure battery voltage and specific gravity of electro-
lyte.
Standard voltage: 12 V
Specific gravity: Above 1.260
2) Check the condition of the main and other fuses, and
harnesses and connectors. Also check for proper ground-
ing.
3
6-2BODY ELECTRICAL SYSTEM
2. Pre-inspection
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B6M0271
5. VACUUM PUMP AND VALVE
1) Measure resistance of vacuum pump and valve.
(1) Disconnect connector from vacuum pump and valve.
(2) Measure resistance between each terminal of
vacuum pump and valve.
Terminals / Specified resistance:
No. 2—No. 3 / 100Ωor less (Vacuum pump
motor)
No. 2—No. 1 / 69Ω(Air valve)
No. 2—No. 4 / 69Ω(Release valve)
B6M0272
2) Check for leakage and sticking of vacuum valve.
(1) Disconnect connector from vacuum pump and valve.
(2) Make sure that cruise control cable moves smoothly
when connecting + (positive) battery cable to terminal
No. 2 and (negative) battery cable to terminals No. 1,
3 and 4 of vacuum pump and valve connector.
Stroke: 35 mm (1.38 in)
Movement time: Within 3 seconds
(3) When the battery cable is disconnected from condi-
tion (2) above, make sure the cable returns to its origi-
nal position smoothly.
Movement time: Within 1.5 seconds
(4) Connect battery to each terminal and check cable
movement.
Terminal No. Battery
Cruise control
cable operation
1234
———————
Pull
Hold
Release
4
6-2BODY ELECTRICAL SYSTEM
2. Pre-inspection
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3. Electrical Components Location
B6M0273A
1Actuator
2Vacuum pump and valve
3Inhibitor switch (AT)
4Cruise control main switch
5Cruise control command switch
6Cruise control module
7Stop and brake switch
8Clutch switch (MT)
5
6-2BODY ELECTRICAL SYSTEM
3. Electrical Components Location
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4. Schematic
B6M0274
6
6-2BODY ELECTRICAL SYSTEM
4. Schematic