1999 SUBARU FORESTER sensor

5. Diagnostics Chart with Trouble Code
A: TROUBLE CODES
1. LIST OF TROUBLE CODES
Trouble code/
Contents of troublesMemory function Contents of diagnosis Index No.
11 Provided.IAirbag main harness circuit is open, shorted or
shorted to ground.
IAirbag module harness (driver) circuit is open,
shorted or shorted to ground.
IRoll connector circuit is open, shorted or shorted
to ground.
IAirbag control module is faulty.
12 Provided.IAirbag main harness circuit is open, shorted or
shorted to ground.
IAirbag module harness (passenger) circuit is
open, shorted or shorted to ground.
IAirbag control module is faulty.
15 Provided.IAirbag main harness circuit (driver) is shorted to
power supply.
IAirbag module harness (driver) is shorted to
power supply.
IRoll connector is shorted to power supply.
IAirbag control module is faulty.
16 Provided.IAirbag main harness circuit (passenger) is
shorted to power supply.
IAirbag module harness (passenger) is shorted to
power supply.
IAirbag control module is faulty.
21 Provided. Airbag control module is faulty.
22 Provided. Front airbag module is inflated.
23 Not provided.(AB6), (AB17) and (AB18) are not connected prop-
erly to airbag control module.
24 Not provided.IAirbag control module is faulty.
IAirbag main harness circuit is open.
IFuse No. 11 (in joint box) is blown.
IBody harness circuit is open.
25 Provided.IAirbag control module is faulty.
IAirbag main harness circuit is open.
IFuse No. 6 (in joint box) is blown.
IBody harness circuit is open.
31 Provided.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.
32 Provided.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.
41 Provided.ISide airbag harness (RH) is faulty.
ISide airbag module (RH) is faulty.
IAirbag control module is faulty.
42 Provided.ISide airbag harness (LH) is faulty.
ISide airbag module (LH) is faulty.
IAirbag control module is faulty.
45 Provided.ISide airbag harness (RH) is faulty.
IAirbag control module is faulty.
15
[T5A1]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

Trouble code/
Contents of troublesMemory function Contents of diagnosis Index No.
46 Provided.ISide airbag harness (LH) is faulty.
IAirbag control module is faulty.
51 Provided.ISide airbag sensor (RH) is faulty.
ISide airbag harness (RH) is faulty.
IAirbag control module is faulty.
52 Provided.ISide airbag sensor (LH) is faulty.
ISide airbag harness (LH) is faulty.
IAirbag control module is faulty.
53 Provided. Side airbag sensor (RH) is faulty.
54 Provided. Side airbag sensor (LH) is faulty.
55 Provided. Side airbag module is inflated.
Airbag warning light remains
on.Not provided.IAirbag warning light is faulty.
IAirbag control module to airbag warning light
harness circuit is shorted or open.
IGrounding circuit is faulty.
IAirbag control module is faulty.
I(AB1) and (B31) are not connected properly.
I(AB6) is not connected properly to airbag control
module.
Airbag warning light remains
off.Not provided.IFuse No. 5 (in main fuse box) is blown.
IBody harness circuit is open.
IAirbag warning light is faulty.
IAirbag main harness is faulty.
IAirbag control module is faulty.
Warning light indicates
trouble code, then normal
code. (Flashing trouble
code.)Provided. Airbag system component parts are faulty.
Warning light indicates
trouble code, then normal
code. (Flashing normal
code.)Not provided.IAirbag connector is faulty.
IFuse No. 11 (in joint box) is blown.
IAirbag main harness is faulty.
IAirbag control module is faulty.
IBody harness is faulty.
2. HOW TO READ TROUBLE CODES
The AIRBAG warning light flashes a code corresponding to the faulty parts.
The long segment (1.2 sec on) indicates a ªtenº, and the short segment (0.3 sec on) indicates a ªoneº.
B5M0117A
16
5-5[T5A2]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

G: TROUBLE CODE 22
DIAGNOSIS:
Front airbag module is inflated.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground terminal, and then wait at least
20 seconds.
5G1 : CHECK IF TROUBLE CODE 22 IS
INDICATED.
Confirm flashing trouble code according to ªBASIC
DIAGNOSTICS PROCEDUREº. [T4A0].>
:Is airbag warning light trouble code
22 indicated?
: Replace airbag control module 5-5 [W6A0].>, front sub sensor 5-5 [W9A0].> and front airbag module of
both sides.
: Perform clear memory. [T4C0].>
H: TROUBLE CODE 23
DIAGNOSIS:
(AB6), (AB17) and (AB18) are not connected prop-
erly to airbag control module.
CAUTION:
Before performing diagnostics on airbag
system, turn ignition switch ªOFFº, disconnect
battery ground cable and then wait at least 20
seconds.
5H1 : CHECK POOR CONTACT IN CON-
NECTORS (AB6), (AB17) AND (AB18).
Check connectors (AB6), (AB17) and (AB18) con-
nected to airbag control module. [W6A0].>
:Is there poor contact in connectors
(AB6), (AB17) and (AB18)?
: Repair poor contact in connectors
(AB6), (AB17) and (AB18).
: Replace airbag control module. 5-5 [W6A0].>
23
[T5H1]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

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 , and connect it to
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. 5-5 [W6A0].>
: Go to step5K4.
28
5-5[T5K0]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

5K4 : FRONT SUB SENSOR (RH) INSPEC-
TION
1) Connect test harness H connector (2H) and
front sub sensor (RH).
2) Measure resistance between test harness H
connector (3H) terminal.
Connector & terminal
(3H) No. 3 Ð No. 4:
B5M0566A
:Is the resistance between 750Wand
1k
W?
: Go to step5K5.
: Replace front sub sensor (RH). 5-5 [W9A0].>
5K5 : FRONT SUB SENSOR (RH) INSPEC-
TION
Measure resistance across test harness H connec-
tor (3H) terminal and chassis ground.
Connector & terminal
(3H) No. 3 (+) Ð Chassis ground (þ):
B5M0567A
:Is the resistance less than 10 kW?
: Go to step5K6.
: Replace front sub sensor (RH). 5-5 [W9A0].>5K6 : FRONT SUB SENSOR (RH) INSPEC-
TION
Measure resistance across test harness H connec-
tor (3H) terminal and chassis ground.
Connector & terminal
(3H) No. 4 (+) Ð Chassis ground (þ):
B5M0568A
:Is the resistance less than 10 kW?
: Go to step5K7.
: Replace front sub sensor (RH). 5-5 [W9A0].>
29
[T5K6]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

5K7 : FRONT SUB SENSOR HARNESS
(RH) INSPECTION
1) Connect test harness I or I2 connector (1I) and
connector (AB6).
2) Disconnect connector (AB16) from front sub
sensor (RH) and then test
harness H connector (1H) and connector (AB16).
3) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness H con-
nector (3H) terminal.
Connector & terminal
(3I) No. 2 Ð (3H) No. 5:
S5M0352A
:Is the resistance less than 10W?
: Go to step5K8.
: Replace front sub sensor harness (RH)
and airbag main
harness. 5K8 : FRONT SUB SENSOR HARNESS
(RH) INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness H connec-
tor (3H) terminal.
Connector & terminal
(3I) No. 4 Ð (3H) No. 6:
S5M0353A
:Is the resistance less than 10W?
: Go to step5K9.
: Replace front sub sensor harness (RH)
and airbag main
harness.
30
5-5[T5K7]DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

5K9 : FRONT SUB SENSOR HARNESS
(RH) INSPECTION
1) Connect test harness I or I2 connector (1I) and
connector (AB6).
2) Disconnect connector (AB16) from front sub
sensor (RH) and then test
harness H connector (1H) and connector (AB16).
3) Measure resistance between test harness I or
I2 connector (3I) terminal and test harness H con-
nector (3H) terminal.
Connector & terminal
(3I) No. 2 Ð (3H) No. 6:
S5M0419A
:Is the resistance more than 1 MW?
: Go to step5K10.
: Replace front sub sensor harness (RH)
and airbag main
harness. 5K10 : FRONT SUB SENSOR HARNESS
(RH) INSPECTION
Measure resistance between test harness I or I2
connector (3I) terminal and test harness H connec-
tor (3H) terminal.
Connector & terminal
(3I) No. 4 Ð (3H) No. 5:
S5M0420A
:Is the resistance more than 1 MW?
: Go to step5K11.
: Replace front sub sensor harness (RH)
and airbag main
harness.
5K11 : 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):
S5M0354A
:Is the resistance more than 10 kW?
: Go to step5K12.
: Replace front sub sensor harness (RH)
and airbag main
harness.
31
[T5K11]5-5DIAGNOSTICS
5. Diagnostics Chart with Trouble Code

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)
and airbag main
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)
and airbag main
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 , and connect it to
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