Subaru Legacy III (2000-2003 year). Manual — part 795
VDC-216
VDC (DIAGNOSTICS)
DIAGNOSTICS CHART WITH SELECT MONITOR
7
CHECK BATTERY SHORT IN HARNESS BE-
TWEEN RELAY BOX AND VDCCM.
Measure voltage between VDCCM connector
and chassis ground.
Connector & terminal
(F87) No. 10 (+) — Chassis ground (
−−−−
):
Is the measured value less than the specified
value?
1 V
Repair harness
between VDCCM
and relay box.
8
CHECK BATTERY SHORT IN HARNESS BE-
TWEEN RELAY BOX AND VDCCM.
1) Turn ignition switch to ON.
2) Measure voltage between VDCCM connec-
tor and chassis ground.
Connector & terminal
(F87) No. 10 (+) — Chassis ground (
−−−−
):
Is the measured value less than the speci-
fied value?
1 V
Repair harness
between VDCCM
and relay box.
9
CHECK POOR CONTACT IN CONNECTORS.
Turn ignition switch to OFF.
Is there poor contact in connector between
VDCH/U, relay box and VDCCM?
There is poor contact.
Repair connector.
10
CHECK VDCCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the diagnostic trouble code.
Is the same diagnostic trouble code as in
the current diagnosis still being output?
Same DTC indicated.
Replace VDCCM.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
11
CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
Are other diagnostic trouble codes being out-
put?
Other DTC indicated.
Proceed with the
diagnosis corre-
sponding to the
diagnostic trouble
code.
A temporary poor
contact.
Step
Value
Yes
No
VDC-217
VDC (DIAGNOSTICS)
DIAGNOSTICS CHART WITH SELECT MONITOR
MEMO:
VDC-218
VDC (DIAGNOSTICS)
DIAGNOSTICS CHART WITH SELECT MONITOR
AN:DTC 52 MOTOR AND MOTOR RELAY ON FAILURE
DIAGNOSIS:
• Faulty motor relay
• Faulty harness connector
TROUBLE SYMPTOM:
• ABS does not operate.
• VDC does not operate.
WIRING DIAGRAM:
VDC00155
VDC HYDRAULIC UNIT
87
87a
VDC2
VDC1
4
6
86
1
85
30
30
86
85
87
5
VDC4
F90
F87
56 57
59 60
62 63
65
82 83
80
27
28
25
26
23
24
21
22
19
20
17
18
15
16
13
14
11
12
9
10
7
8
5
6
3
4
1
2
54
55
52
53
50
51
81
48
49
46
47
44
45
78
79
76
77
75
42
43
40
41
74
72
73
70
71
39
37
38
35
36
69
67
68
66
33
34
61
64
31
32
29
30
58
SBF HOLDER 50A
VDC7
VDC6
MOTOR RELAY
VALVE RELAY
VDC CONTROL MODULE
22
10
27
47
F87
1
VDC3
F89
2
SBF-1 100A
RELAY BOX
F89
VDC1
1 2
F90
VDC6
1
3
4 5 6
2
85
86
87
30
85 87a 86
87
30
VDC7
BATTERY
VDC-219
VDC (DIAGNOSTICS)
DIAGNOSTICS CHART WITH SELECT MONITOR
Step
Value
Yes
No
1
CHECK RESISTANCE OF MOTOR RELAY.
1) Turn ignition switch to OFF.
2) Remove motor relay from relay box.
3) Measure resistance between motor relay
terminals.
Terminals
No. 85 — No. 86:
Is the measured value within the specified
range?
70 — 90
Ω
Replace motor
relay.
2
CHECK CONTACT POINT OF MOTOR RE-
LAY.
1) Connect battery to motor relay terminals
No. 85 and No. 86.
2) Measure resistance between motor relay
terminals.
Terminals
No. 30 — No. 87:
Is the measured value less than the speci-
fied value?
0.5
Ω
Replace motor
relay.
3
CHECK SHORT OF MOTOR RELAY.
Measure resistance between motor relay ter-
minals.
Terminals
No. 85 — No. 30:
No. 85 — No. 87:
Does the measured value exceed the specified
value?
1 M
Ω
Replace motor
relay.
4
CHECK INPUT VOLTAGE OF RELAY BOX.
1) Disconnect connector (F89) from relay box.
2) Disconnect connector from VDCCM.
3) Turn ignition switch to ON.
4) Measure voltage between relay box con-
nector and chassis ground.
Connector & terminal
(F89) No. 2 (+) — Chassis ground (
−−−−
):
Is the measured value within the specified
range?
10 — 15 V
Repair harness/
connector
between battery
and relay box, and
check fuse SBF
holder.
5
CHECK INPUT VOLTAGE OF MOTOR RE-
LAY.
1) Turn ignition switch to OFF.
2) Connect connector (F89) to relay box.
3) Turn ignition switch to ON.
4) Measure voltage between relay box and
chassis ground.
Connector & terminal
(VDC7) No. 87 (+) — Chassis ground (
−−−−
):
Is the measured value within the specified
range?
10 — 15 V
Replace relay box.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст