Subaru Legacy III (2000-2003 year). Service manual — part 702
ABS-26
ABS (DIAGNOSTICS)
LIST OF DIAGNOSTICS TROUBLE CODE (DTC)
33
Front left inlet valve
malfunction
Front left inlet valve
malfunction
34
Front left outlet valve
malfunction
Front left outlet valve
malfunction
35
Rear right inlet valve
malfunction
Rear right inlet valve
malfunction
36
Rear right outlet valve
malfunction
Rear right outlet valve
malfunction
37
Rear left inlet valve mal-
function
Rear left inlet valve
malfunction
38
Rear left outlet valve
malfunction
Rear left outlet valve
malfunction
41
ABS control module
malfunction
ABS control module
and hydraulic control
unit malfunction
42
Power supply voltage
too low
Power supply voltage
too low
42
Power supply voltage
too high
Power supply voltage
too high
44
ABS-AT control (Non
Controlled)
ABS-AT control (Non
Controlled)
44
ABS-AT control (Con-
trolled)
ABS-AT control (Con-
trolled)
51
Valve relay malfunction
Valve relay malfunction
<Ref. to ABS-122, DTC 51 VALVE RELAY MALFUNCTION,
Diagnostics Chart with Subaru Select Monitor.>
51
Valve relay ON failure
Valve relay ON failure
<Ref. to ABS-124, DTC 51 VALVE RELAY ON FAILURE, Diag-
nostics Chart with Subaru Select Monitor.>
52
Open circuit in motor
relay circuit
Open circuit in motor
relay circuit
52
Motor relay ON failure
Motor relay ON failure
<Ref. to ABS-128, DTC 52 MOTOR RELAY ON FAILURE,
Diagnostics Chart with Subaru Select Monitor.>
52
Motor malfunction
Motor malfunction
<Ref. to ABS-130, DTC 52 MOTOR MALFUNCTION, Diagnos-
tics Chart with Subaru Select Monitor.>
54
Stop light switch signal
circuit malfunction
Stop light switch signal
circuit malfunction
56
Open or short circuit in
G sensor circuit
Open or short circuit in
G sensor circuit
56
Battery short in G sen-
sor circuit
Battery short in G sen-
sor circuit
56
Abnormal G sensor
high
µ
output
Abnormal G sensor
high
µ
output
56
Detection of G sensor
stick
Detection of G sensor
stick
<Ref. to ABS-146, DTC 56 DETECTION OF G SENSOR
STICK, Diagnostics Chart with Subaru Select Monitor.>
DTC No.
Display screen
Contents of diagnosis
Index No.
ABS-27
ABS (DIAGNOSTICS)
LIST OF DIAGNOSTICS TROUBLE CODE (DTC)
MEMO:
ABS-28
ABS (DIAGNOSTICS)
DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
12.Diagnostics Chart with Diagnosis Connector
A: ABS WARNING LIGHT DOES NOT COME ON.
DIAGNOSIS:
• ABS warning light circuit is open or shorted.
TROUBLE SYMPTOM:
• When ignition switch is turned ON (engine OFF), ABS warning light does not come on
WIRING DIAGRAM:
ABS00308
24
1
23
5
4
18
20
22
4
ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT
F49
B82
B81
8
DIAGNOSIS
TERMINAL
DIAGNOSIS
CONNECTOR
B36
B4 B5 B6
A4 A5 A6
C5 C6
F6
D4 D5 D6
F1
H1
C4
G6
G1
C2
K1
M1 M2
K6
L1
D1 D2
A1 A2
B1 B2
I6
J6
L2
I1
J1
H6
M4 M5 M6
L4 L5 L6
N5 N6
O4 O5 O6
N4
P4 P5
N2
O1 O2
P1 P2
N3
O3
P3
P6
A3
B3
C3
E4 E5 E6
E1 E2
i10
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 27 28 29 30
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22
27 28 29 30 31
23
24
25
26
F49
B82
1 2
4 5 6 7
3
8
i12
1 2 3
4 5 6
7 8 9 10 11 12 13 14
NO
. 8 30A
NO
. 18 15A
BATTERY
SBF-1 100A
SBF-3 50A
SBF-4 50A
IGNITION
SWITCH
COMBINATION
METER
ABS
WARNING
LIGHT
B:
i11
C:
i12
A:
i10
G1
i1
B36
GENERATOR
B5
IGNITION
RELAY
NO
. 5 15A
F45
1 2 3
4 5 6 7
8 9 10 11
12 13 14 15 16
TB
1
*
2
*
3
*
4
*
RHD
LHD
1
*
2
*
3
*
:TURBO A8
NA C3
: LHD
RHD
: TURBO B2
NA C11
: TURBO
ENGINE
MODEL
4
*
: LHD
RHD
TB
F2
F45
B100
B62
1 2 3
8 9 10
4
11 12 13 14 15 16
5 6 7
B:
i11
F2
3 4
1 2
8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
5 6
7
ABS-29
ABS (DIAGNOSTICS)
DIAGNOSTICS CHART WITH DIAGNOSIS CONNECTOR
Step
Value
Yes
No
1
CHECK IF OTHER WARNING LIGHTS TURN
ON.
Turn ignition switch to ON (engine OFF).
Do other warning lights turn on?
Other warning light turns on.
Repair combina-
tion meter. -<Ref.
to IDI-14, Combi-
nation Meter
Assembly.>
2
CHECK ABS WARNING LIGHT BULB.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove ABS warning light bulb from com-
bination meter.
Is ABS warning light bulb OK?
OK.
Replace ABS
warning light bulb.
<Ref. to IDI-14,
Combination
Meter Assembly.>
3
CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Disconnect connector (B62) or (B100) from
connector (F45) or (F2).
2) Measure voltage between connector (B62)
and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
(
−−−−
):
RHD: (B100) No. 18 (+) — Chassis
ground (
−−−−
):
Is the measured value less than the speci-
fied value?
3 V
Repair warning
light harness.
4
CHECK BATTERY SHORT OF ABS WARN-
ING LIGHT HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between connector (B62)
or (B100) and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
(
−−−−
):
LHD: (B100) No. 18 (+) — Chassis
ground (
−−−−
):
Is the measured value less than the speci-
fied value?
3 V
Repair warning
light harness.
5
CHECK WIRING HARNESS.
1) Turn ignition switch to OFF.
2) Install ABS warning light bulb from combi-
nation meter.
3) Install combination meter.
4) Turn ignition switch to ON.
5) Measure voltage between connector (B62)
or (B100) and chassis ground.
Connector & terminal
LHD: (B62) No. 5 (+) — Chassis ground
(
−−−−
):
RHD: (B100) No. 18 (+) — Chassis
ground (
−−−−
):
Is the measured value within the specified
range?
10 - 15 V
Repair wiring har-
ness.
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