Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 783
LAN(diag)-41
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
5
CHECK CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the body integrated unit connec-
tor (B280).
Is there poor contact of connec-
tor?
Repair or replace
the poor contact of
connector.
A temporary
change of voltage
occurred.
Step
Check
Yes
No
LAN(diag)-42
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
E: DTC B1104 ACC POWER FAILURE
DTC DETECTING CONDITION:
• Open or short in ACC power supply circuit
• Voltage malfunction caused by poor contact
TROUBLE SYMPTOM:
Does not exist.
NOTE:
B1104 may output when the ignition switch turns to ACC with the weak battery condition.
WIRING DIAGRAM:
Headlight System <Ref. to WI-90, WIRING DIAGRAM, Headlight System.>
Step
Check
Yes
No
1
Is B1104 current malfunction? Go to step
2
CHECK DTC.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from body inte-
grated unit and reconnect.
3) Turn the ignition switch to ACC.
4) Wait approx. 2 minutes.
5) Turn the ignition switch to ON.
6) Read the DTC of body integrated unit using
Subaru Select Monitor.
Is B1104 current malfunction? Go to step
3
CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Check the fuse.
Is the fuse OK?
Replace the defec-
tive fuse.
4
CHECK HARNESS.
1) Disconnect the body integrated unit connec-
tor (B280).
2) Turn the ignition switch to ACC.
3) Measure the voltage between body inte-
grated unit connector and chassis ground using
tester.
Connector & terminal
(B280) No. 7 (+) — Chassis ground (–):
Is the voltage 8.5 — 16.5 V?
Replace the body
integrated unit.
<Ref. to SL-48,
REMOVAL, Body
Integrated Unit.>
Repair or replace
the open or
shorted circuit
between body inte-
grated unit and
fuse.
i97
2 3 4 5
1
6 7 8
*
1
*
1
*
1
i97
i84
A:
B1
A: i84
1 2
3 4
5 6
7 8
9 10 11 12
14 15 16 17 18 19 20 21 22 23
24 25
26 27 28 29
30 31 32 33
34 35
13
A2
8
B7
B280
B:
6
4 5
3
1 2
9
7 8
17
6
1
5
1
4
1
3
1
2
1
1
1
0
1
20
9
1
8
1
24
3
2
2
2
1
2
26
5
2
D27
B17
C20
5
7
6
4
8
2
1
9
3
0
1
3
2
2
2
1
1
2
1
3
1
4
1
5
1
7
2
6
2
5
2
4
2
6
1
7
1
8
1
9
2
8
2
9
1
0
2
21
30
B279
D:
7
5 6
8
2
1
9
4
3
0
1
4
2
5
2
3
2
2
2
1
1
2
1
3
1
4
1
5
1
8
2
7
2
6
2
6
1
7
1
8
1
9
1
1
2
0
2
B281
C:
D: B279
B: B280 C: B281
LAN00605
TO POWER SUPPLY CIRCUIT
BODY INTEGRATED UNIT
FB-38
F/B FUSE NO. 12
(IG)
FB-29
F/B FUSE NO. 31
(ACC)
JOINT GROUND CONNECTOR
: TERMINAL No. OPTIONAL ARRANGEMENT
LAN(diag)-43
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
5
CHECK CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the body integrated unit connec-
tor (B280).
Is there poor contact of connec-
tor?
Repair or replace
the poor contact of
connector.
A temporary
change of voltage
occurred.
Step
Check
Yes
No
LAN(diag)-44
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
F: DTC U1201 CAN-HS COUNTER ABNORMAL
DTC DETECTING CONDITION:
Communication is unstable because of high speed CAN communication error.
TROUBLE SYMPTOM:
Malfunction indicator light illuminates.
WIRING DIAGRAM:
CAN communication system <Ref. to WI-171, WIRING DIAGRAM, CAN Communication System.>
Step
Check
Yes
No
1
Are there U1202 or DTCs other
than for the body integrated
unit?
Perform the diag-
nosis according to
DTC.
2
CHECK DTC.
Check DTC indicated by body integrated unit.
Is U1201 a current malfunc-
tion?
2
1
B231
1
8
2
B380
B3
B9
B280
B:
6
14
B40
B380
1 2 3 4
17 18 19 20
5 6 7 8
21 22 23 24
9 10 11 12
25 26 27 28
13 14 15 16
29 30 31 32
4 5 6 7 8 9
6
2
7
2
8
2
9
2
0
3
2 3
1
1
3
2
3
3
3
4
3
5
3
6
3
0
1
1
1
4
1
5
1
6
1
7
1
8
1
9
1
7
3
8
3
9
3
0
4
2
1
3
1
1
4
2
4
3
4
4
4
5
4
6
4
0
2
1
2
3
2
4
2
2
2
5
2
B310
B231
1 2 3 4
B230
1
2
3
4
C: B136
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
B280
B:
1 2 3
4 5 6
7 8 9 10 11 12 13 14 15 16 17
18 19 20
21 22 23 24
25 26
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
B40
C17
C28
C: B136
B230
3
2
B310
10
35
LAN00907
SI
SI
SI
VDC CM
ECM
DCCD CM
YAW RATE &
G SENSOR
: WITH SI-DRIVE
DATA LINK
CONNECTOR
BODY
INTEGRATED
UNIT
STEERING
ANGLE
SENSOR
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст