1997 SUBARU LEGACY ECO mode

6. Diagnostics Chart for On-board
Diagnosis System
A: BASIC DIAGNOSTICS PROCEDURE
TROUBLE OCCURS.
Is Select Monitor available?
No
Ye s
10. Diagnostic Chart with Select
Monitor
Ask the customer when and how the
trouble occurred using interview
check list.
PRE-INSPECTION

CALLING UP A TROUBLE CODE.
No trouble code is readable.

Inspection using Diagnostic Chart for
Warning Light Failure.

Record all trouble codes.
Trouble codes
are issued.
Only the start code is issued.
Inspection using General Diagnostics
Chart

Perform diagnostics in accordance with trouble code.

Trouble code
designated.

Repair.
Clear memory.

INSPECTION MODE

CALLING UP A TROUBLE CODE.

Only the start code is issued.
CONFIRMATION TEST
END
NOTE:

To check harness for broken wires or short circuits,
shake it while holding it or the connector.

When ABS warning light illuminates, read and record
trouble code indicated by ABS warning light.












10
4-4cBRAKES [ABS 5.3 TYPE]
6. Diagnostics Chart for On-board Diagnosis System

2. FA MODE (ON/OFF DATA ARE DISPLAYED.)
Function code
Measuring items Contents to be monitored Scroll Ref. to
Code Abbreviation
FA 0B1 Stop light switchLED 1 comes on with the switch on (with the brake
pedal down).
Possible 4-4c [T9I0] VR Valve relay signal LED 2 comes on with the valve relay off.
MR Motor relay signal LED 3 comes on with the motor on.
AT AT ABS signal LED 4 comes on when ABS control is on.
AW ABS warning light LED 6 comes on when the warning light is on.
VM Valve relay monitor LED 1 comes on with the valve relay off.
MM Motor relay monitor LED 8 comes on when the motor relay is on.
CM CCM signal LED 9 comes on when ABS control is on.
3. FB MODE (TROUBLE CODES ARE DISPLAYED.)
Function code
Measuring items Contents to be monitored Scroll Ref. to
Code Abbreviation
FB1D⋅ALL
History of trouble
codes is displayed.A maximum of 3 trouble codes are displayed in order
of occurrence.
Possible 4-4c [T10B0] D⋅NEWThe most recent trouble code appears on the select
monitor display.
D⋅MIDThe second most recent trouble code appears on the
select monitor display.
D⋅OLDThe third most recent trouble code appears on the
select monitor display.
B4M0919
NOTE:

If a particular trouble code is not properly stored in
memory (due to a drop in ABSCM power supply, etc.) when
a problem occurs, the trouble code, followed by a question
mark“?”, appears on the select monitor display. This shows
it may be an unreliable reading.

*a* refers to the troubles in order of occurrence (NEW.
MID and OLD).
11 2
4-4cBRAKES [ABS 5.3 TYPE]
9. Select Monitor Function Mode

B4M0930
J: MODE FC0
—HISTORY OF TROUBLE CODES IS
ERASED (D⋅CLR)—

Deletes the recorded trouble codes in ABS control mod-
ule.
B4M0931
1) Use function keys to put inFCOENT.
B4M0930
2) System indicates as shown.
B4M0933
3) Key in 0, to clear memories. The indication of * is added
to screen.
B4M0934
4) Key in ENT. System indicates as shown.
5) Turn the key OFF.
11 8
4-4cBRAKES [ABS 5.3 TYPE]
9. Select Monitor Function Mode

10. Diagnostics Chart with Select
Monitor
A: BASIC DIAGNOSTIC CHART
TROUBLE OCCURS.
Is Select Monitor available?
Ye s
No
Diagnostics Chart for On-board
Diagnosis System

Ask the customer when and how
the trouble occurred using
interview check list.

PRE-INSPECTION

Use select monitor, retrieve
trouble code in function mode
FB1 and record the code.
Perform diagnostics in accordance with trouble code.
No corresponding trouble
code

Inspection using General
Diagnostics Chart

Trouble code
is designated
or ABS warning
light constantly
remains on.

Repair.
Clear memory.

INSPECTION MODE

Use select monitor, retrieve trouble code in function
mode FB1 and record the code.
No trouble code is designated and
ABS warning light goes out after turning on.
CONFIRMATION TEST
END
NOTE:
To check harness for broken wires or short circuits, shake
it while holding it or the connector.











122
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor

ContentsTerminal No.
(+)—()Input/Output signal
Measured value and measuring conditions
ABS
sensor*2
(Wheel
speed
sensor)Front left wheel 9—10
0.12 — 1 V
(When it is 20 Hz.) Front right wheel 11—12
Rear left wheel 7—8
Rear right wheel 14—15
Valve relay power supply 24—23 10 — 15 V when ignition switch is ON.
Motor relay power supply 25—23 10 — 15 V when ignition switch is ON.
G sensor*2
(AWD
model only)power supply 30—28 4.75 — 5.25 V
ground 28 —
output 6—28 2.3±0.2 V when vehicle is in horizontal position.
Stop light switch*1 2—23Less than 1.5 V when the stop light is OFF and, 10 — 15 V
when the stop light is ON.
ABS warning light*2 21—23Less than 1.5 V during 1.5 seconds when ignition switch is
ON, and 10 — 15 V after 1.5 seconds.
AT ABS signal*2
(AT model only)31—23Less than 1.5 V when the ABS control does not operate still
and more than 5.5 V when ABS operates.
ABS operation signal monitor*2 3—23Less than 1.5 V when the ABS control does not operate still
and more than 5.5 V when ABS operates.
Select
monitor*2Data is received. 20—23 Less than 1.5 V when no data is received.
Data is sent. 5—23 4.75 — 5.25 V when no data is sent.
ABS
diagnosis
connector*2Terminal No. 3 29—23 10 — 15 V when ignition switch is ON.
Terminal No. 6 4—23 10 — 15 V when ignition switch is ON.
Power supply*1 1—23 10 — 15 V when ignition switch is ON.
Grounding line 23 —
Grounding line 26 —
*1: Measure the I/O signal voltage after removing the connector from the ABSCM&H/U terminal.
*2: Measure the I/O signal voltage at connector (F2) or (F1).
8
4-4dBRAKES [ABS 5.3i TYPE]
5. Control Module I/O Signal

2. FA MODE (ON/OFF DATA ARE DISPLAYED.)
Function code
Measuring items Contents to be monitored Scroll Ref. to
Code Abbreviation
FA 0B1 Stop light switchLED 1 comes on with the switch on (with the brake
pedal down).
Possible 4-4d [T9I0] VR Valve relay signal LED 2 comes on with the valve relay off.
MR Motor relay signal LED 3 comes on with the motor on.
AT AT ABS signal LED 4 comes on when ABS control is on.
AW ABS warning light LED 6 comes on when the warning light is on.
VM Valve relay monitor LED 1 comes on with the valve relay off.
MM Motor relay monitor LED 8 comes on when the motor relay is on.
CM CCM signal LED 9 comes on when ABS control is on.
3. FB MODE (TROUBLE CODES ARE DISPLAYED.)
Function code
Measuring items Contents to be monitored Scroll Ref. to
Code Abbreviation
FB1D⋅ALL
History of trouble
codes is displayed.A maximum of 3 trouble codes are displayed in
order of occurrence.
Possible 4-4d [T10B0] D⋅NEWThe most recent trouble code appears on the select
monitor display.
D⋅MIDThe second most recent trouble code appears on
the select monitor display.
D⋅OLDThe third most recent trouble code appears on the
select monitor display.
D⋅REFA specified period of time proceeding trouble code
appears on the select monitor display.
B4M0919
NOTE:

If a particular trouble code is not properly stored in
memory (due to a drop in ABSCM&H/U power supply, etc.)
when a problem occurs, the trouble code, followed by a
question mark“?”, appears on the select monitor display.
This shows it may be an unreliable reading.

arefers to the troubles in order of occurrence (NEW.
MID, OLD and REF).
79
4-4dBRAKES [ABS 5.3i TYPE]
9. Select Monitor Function Mode

B4M0930
J: MODE FC0
—HISTORY OF TROUBLE CODES IS
ERASED (D⋅CLR)—

Deletes the recorded trouble codes in ABS control mod-
ule.
B4M0931
1) Press the function key [F] [C] [O] [ENT] in that order.
B4M0930
2) System indicates as shown.
B4M0933
3) Press the function key [0], to clear memories. The indi-
cation of
is added to screen.
B4M0934
4) Press the function key [ENT]. System indicates as
shown.
5) Turn ignition switch to OFF.
86
4-4dBRAKES [ABS 5.3i TYPE]
9. Select Monitor Function Mode