Ignition system SUBARU FORESTER 1999 Service User Guide
[x] Cancel search | Manufacturer: SUBARU, Model Year: 1999, Model line: FORESTER, Model: SUBARU FORESTER 1999Pages: 345, PDF Size: 5.6 MB
Page 23 of 345
I: TROUBLE CODE 24
DIAGNOSIS:
IAirbag control module is faulty.
IAirbag main harness circuit is open.
IFuse No. 11 (in joint box) is blown.
IBody harness circuit is open.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
After 20 seconds elapse, remove instrument
panel lower cover, and disconnect (AB3) and
(AB8), (AB9) and (AB10).
5I1 : AIRBAG CONTROL MODULE INSPEC-
TION
1) Disconnect connector (AB6) from airbag control
module
test harness I or I2 connector (1I).
2) Connect battery ground cable and turn ignition
switch ªONº (engine off).
3) Measure voltage across connector (2I) terminal
and chassis ground.
Connector & terminal
(2I) No. 3 (+) Ð Chassis ground (þ):
S5M0264B
:Is voltage more than 10 V?
: Replace airbag control module.
: Go to step5I2.5I2 : AIRBAG MAIN HARNESS INSPEC-
TION
1) Go to following procedure after performing
diagnostics on airbag system as per diagnosis pro-
cedure under ª5I1 AIRBAG CONTROL MODULE
INSPECTIONº
lined.
2) Turn ignition switch ªOFFº, disconnect battery
ground cable and then wait at least 20 seconds.
3) Disconnect connector (AB1) from body harness
connector (B31) located in front pillar lower (driver
side), and connect connector (AB1) to test harness
A connector (2A).
B5M0122B
4) Measure resistance between test harness A
connector (5A) and test harness I or I2 connector
(2I) terminals.
Connector & terminal
(5A) No. 9 Ð (2I) No. 3:
S5M0265B
:Is resistance less than 10W?
: Go to step5I3.
: Replace airbag main harness.
24
5-5[T5I0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 25 of 345
J: TROUBLE CODE 25
DIAGNOSIS:
IAirbag control module is faulty.
IAirbag main harness circuit is open.
IFuse No. 6 (in joint box) is blown.
IBody harness circuit is open.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
After 20 seconds elapse, remove instrument
panel lower cover, and disconnect (AB3) and
(AB8), (AB9) and (AB10).
5J1 : AIRBAG CONTROL MODULE
INSPECTION
1) Disconnect connector (AB6) from airbag control
module
harness I or I2 connector (1I).
2) Connect battery ground cable and turn ignition
switch ªONº. (engine off)
3) Measure voltage across connector (2I) terminal
and chassis ground.
Connector & terminal
(2I) No. 6 (+) Ð Chassis ground (þ):
S5M0253B
:Is voltage more than 10 V?
: Replace airbag control module.
: Go to step5J2.5J2 : AIRBAG MAIN HARNESS INSPEC-
TION
1) Go to following procedure after performing
diagnostics on airbag system as per diagnosis pro-
cedure under ª5J1 AIRBAG CONTROL MODULE
INSPECTIONº
outlined.
2) Turn ignition switch ªOFFº, disconnect battery
ground terminal and then wait at least 20 seconds.
3) Disconnect body harness connector (B31) from
connector (AB1) located in front pillar lower (driver
side), and connect connector (AB1) to test harness
A connector (2A).
B5M0122B
4) Measure resistance between test harness A
connector (5A) terminal and test harness I or I2
connector (2I) terminal.
Connector & terminal
(5A) No. 1 Ð (2I) No. 6:
S5M0254B
:Is resistance less than 10W?
: Go to step5J3.
: Replace airbag main harness.
26
5-5[T5J0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 27 of 345
K: TROUBLE CODE 31
DIAGNOSIS:
IFront sub sensor harness (RH) circuit is shorted.
IFront sub sensor harness (RH) circuit is open.
IFront sub sensor (RH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground terminal, and then wait at least
20 seconds.
5K1 : FRONT SUB SENSOR (RH) AND
FRONT SUB SENSOR HARNESS
(RH) INSPECTION
1) Disconnect connector (AB6) from airbag control
module
test harness I or I2 connector (1I).
2) Measure resistance between test harness I or
I2 connector (3I) terminal.
Connector & terminal
(3I) No. 2 Ð No. 4:
B5M0554B
:Is the resistance between 750Wand
1k
W?
: Go to step5K2.
: Go to step5K4.5K2 : FRONT SUB SENSOR (RH) AND
FRONT SUB SENSOR HARNESS
(RH) INSPECTION
Measure resistance across test harness I or I2
connector (3I) terminal and chassis ground.
Connector & terminal
(3I) No. 2 (+) Ð Chassis ground (þ):
B5M0555B
:Is the resistance more than 10 kW?
: Go to step5K3.
: Go to step5K4.
5K3 : FRONT SUB SENSOR (RH) AND
FRONT SUB SENSOR HARNESS
(RH) INSPECTION
Measure resistance across test harness I or I2
connector (3I) terminal and chassis ground.
Connector & terminal
(3I) No. 4 (+) Ð Chassis ground (þ):
B5M0556B
:Is the resistance more than 10 kW?
: Replace airbag control module.
: Go to step5K4.
28
5-5[T5K0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 31 of 345
5K12 : FRONT SUB SENSOR HARNESS
(RH) INSPECTION
Measure resistance across test harness I or I2
connector (3I) terminal and chassis ground.
Connector & terminal
(3I) No. 4 (+) Ð Chassis ground (þ):
S5M0355A
:Is the resistance more than 10 kW?
: Go to step5K13.
: Replace front sub sensor harness (RH)
harness.
5K13 : CHECK POOR CONTACT IN CON-
NECTORS (AB14) AND (AB15).
Check connectors (AB14) and (AB15).
:Is there poor contact in connectors
(AB14) and (AB15)?
: Repair poor contact in connectors
(AB14) and (AB15).
: Replace front sub sensor harness (RH)
harness.
L: TROUBLE CODE 32
DIAGNOSIS:
IFront sub sensor harness (LH) circuit is shorted.
IFront sub sensor harness (LH) circuit is open.
IFront sub sensor (LH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground terminal, and then wait at least
20 seconds.
5L1 : FRONT SUB SENSOR (LH) AND
FRONT SUB SENSOR HARNESS (LH)
INSPECTION
1) Disconnect connector (AB6) from airbag control
module
test harness I or I2 connector (1I).
2) Measure resistance between test harness I or
I2 connector (3I) terminal.
Connector & terminal
(3I) No. 1 Ð No. 3:
B5M0557B
:Is the resistance between 750Wand
1k
W?
: Go to step5L2.
: Go to step5L4.
32
5-5[T5K12]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 36 of 345
M: TROUBLE CODE 41
DIAGNOSIS:
ISide airbag harness (RH) is faulty.
ISide airbag module (RH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5M1 : SIDE AIRBAG MODULE INSPECTION
1) Disconnect connector (AB24) and (AB25), and
then connect connector (AB24) and test harness F
connector (1F).
2) Connect test harness F connector (3F) and air-
bag resistor
3) Connect battery ground cable and then turn
ignition switch ON.
:Does the airbag warning light go off
after about 7 seconds and remain off
for more than 30 seconds?
: Replace front seat with side airbag mod-
ule (RH).
: Go to step5M2.5M2 : SIDE AIRBAG HARNESS (RH)
INSPECTION
1) Turn ignition switch OFF, disconnect battery
ground cable and then wait at least 20 seconds.
2) Disconnect test harness F and airbag resistor.
3) Disconnect connector (AB18) from airbag con-
trol module
harness I or I2 connector (1I).
4) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness F con-
nector (3F) terminal.
Connector & terminal
(3I) No. 7 Ð (3F) No. 3:
S5M0341A
:Is the resistance less than 10W?
: Go to step5M3.
: Replace side airbag harness (RH).
37
[T5M2]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 39 of 345
N: TROUBLE CODE 42
DIAGNOSIS:
ISide airbag harness (LH) is faulty.
ISide airbag module (LH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5N1 : SIDE AIRBAG MODULE INSPECTION
1) Disconnect connector (AB19) and (AB20), and
then connect connector (AB19) and test harness F
connector (1F).
2) Connect test harness F connector (3F) and air-
bag resistor.
3) Connect battery ground cable and then turn
ignition switch ON.
:Does the airbag warning light go off
after about 7 seconds and remain off
for more than 30 seconds?
: Replace front seat with side airbag mod-
ule (LH).
: Go to step5N2.5N2 : SIDE AIRBAG HARNESS (LH)
INSPECTION
1) Turn ignition switch OFF, disconnect battery
ground cable and then wait at least 20 seconds.
2) Disconnect test harness F and airbag resistor.
3) Disconnect connector (AB17) from airbag con-
trol module
harness I or I2 connector (1I).
4) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness F con-
nector (3F) terminal.
Connector & terminal
(3I) No. 12 Ð (3F) No. 3:
S5M0343A
:Is the resistance less than 10W?
: Go to step5N3.
: Replace side airbag harness (LH).
40
5-5[T5N0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 42 of 345
O: TROUBLE CODE 45
DIAGNOSIS:
ISide airbag harness (RH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5O1 : SIDE AIRBAG MODULE INSPECTION
1) Disconnect connector (AB24) and (AB25), and
then connect connector (AB24) and test harness F
connector (1F).
2) Connect test harness F connector (3F) and air-
bag resistor
3) Connect battery ground cable and then turn
ignition switch ON.
:Does the airbag warning light go off
after about 7 seconds and remain off
for more than 30 seconds?
: Replace front seat with side airbag mod-
ule (RH).
: Go to step5O2.5O2 : SIDE AIRBAG HARNESS (RH)
INSPECTION
1) Turn ignition switch OFF, disconnect battery
ground cable and then wait at least 20 seconds.
2) Disconnect test harness F and airbag resistor.
3) Disconnect connector (AB18) from airbag con-
trol module and connect it to test harness I or I2
connector (1I).
4) Connect battery ground cable and turn ignition
switch ON. (engine off)
5) Measure voltage across connector (3I) terminal
and chassis ground.
Connector & terminal
(3I) No. 7 (+) Ð Chassis ground (±):
B5M0523B
:Is the voltage less than 1 V?
: Go to step5O3.
: Replace side airbag harness (RH).
43
[T5O2]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 43 of 345
5O3 : SIDE AIRBAG HARNESS (RH)
INSPECTION
Measure voltage across connector (3I) terminal
and chassis ground.
Connector & terminal
(3I) No. 9 (+) Ð Chassis ground (±):
B5M0777A
:Is the voltage less than 1 V?
: Replace airbag control module.
: Replace side airbag harness (RH).
P: TROUBLE CODE 46
DIAGNOSIS:
ISide airbag harness (LH) is faulty.
IAirbag control module is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5P1 : SIDE AIRBAG MODULE INSPECTION
1) Disconnect connector (AB19) and (AB20), and
then connect connector (AB19) and test harness F
connector (1F).
2) Connect test harness F connector (3F) and air-
bag resistor.
3) Connect battery ground cable and then turn
ignition switch ON.
:Does the airbag warning light go off
after about 7 seconds and remain off
for more than 30 seconds?
: Replace front seat with side airbag mod-
ule (LH).
: Go to step5P2.
44
5-5[T5O3]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 45 of 345
Q: TROUBLE CODE 51
DIAGNOSIS:
ISide airbag sensor (RH) is faulty.
ISide airbag harness (RH) is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5Q1 : SIDE AIRBAG HARNESS (RH)
INSPECTION
1) Disconnect connector (AB24) and (AB25) at
below front seat on RH side.
2) Disconnect connector (AB18) from airbag con-
trol module and connect it to test harness I or I2
connector (1I).
3) Disconnect connector (AB28) from side airbag
sensor (RH) and connect it to test harness G con-
nector (1G).
4) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness G con-
nector (3G) terminal.
Connector & terminal
(3I) No. 17 Ð (3G) No. 2:
B5M0527B
:Is the resistance less than 10W?
: Go to step5Q2.
: Replace side airbag harness (RH).
INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness G connec-
tor (3G) terminal.
Connector & terminal
(3I) No. 19 Ð (3G) No. 5:
B5M0528B
:Is the resistance less than 10W?
: Go to step5Q3.
: Replace side airbag harness (RH).
5Q3 : SIDE AIRBAG HARNESS (RH)
INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness G connec-
tor (3G) terminal.
Connector & terminal
(3I) No. 18 Ð (3G) No. 1:
S5M0345A
:Is the resistance less than 10W?
: Go to step5Q4.
: Replace side airbag harness (RH).
46
5-5[T5Q0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code
Page 49 of 345
R: TROUBLE CODE 52
DIAGNOSIS:
ISide airbag sensor (LH) is faulty.
ISide airbag harness (LH) is faulty.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5R1 : SIDE AIRBAG HARNESS (LH)
INSPECTION
1) Disconnect connector (AB19) and (AB20) at
below front seat on LH side.
2) Disconnect connector (AB17) from airbag con-
trol module and connect it to test harness I or I2
connector (1I).
3) Disconnect connector (AB23) from side airbag
sensor (LH) and connect it to test harness G con-
nector (1G).
4) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness G con-
nector (3G) terminal.
Connector & terminal
(3I) No. 14 Ð (3G) No. 5:
B5M0533B
:Is the resistance less than 10W?
: Go to step5R2.
: Replace side airbag harness (LH).
INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness G connec-
tor (3G) terminal.
Connector & terminal
(3I) No. 16 Ð (3G) No. 2:
B5M0534B
:Is the resistance less than 10W?
: Go to step5R3.
: Replace side airbag harness (LH).
5R3 : SIDE AIRBAG HARNESS (LH)
INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness G connec-
tor (3G) terminal.
Connector & terminal
(3I) No. 15 Ð (3G) No. 1:
S5M0347A
:Is the resistance less than 10W?
: Go to step5R4.
: Replace side airbag harness (LH).
50
5-5[T5R0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code