Subaru Legacy III (2000-2003 year). Manual - part 573

AT-26

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

INSPECTION MODE

8. Inspection Mode

A: OPERATION

Raise the vehicle using a garage jack and place on
safety stands or drive the vehicle onto free rollers.

WARNING:
• Before raising the vehicle, ensure parking
brakes are applied.
• Do not use a pantograph jack in place of a
safety stand.
• Secure a rope or wire to the front and rear
towing or tie-down hooks to prevent the lateral
runout of front wheels.
• Do not abruptly depress/release clutch pedal
or accelerator pedal during works even when
engine is operating at low speeds since this
may cause vehicle to jump off free rollers.
• In order to prevent the vehicle from slipping
due to vibration, do not place any wooden
blocks or similar items between the safety
stands and the vehicle.
• Since the rear wheels will also rotate, do not
place anything near them. Also, make sure that
nobody goes in front of the vehicle.

(A) Safety stand

(B) Free rollers

AT-00343

( A )

( B )

AT-27

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

CLEAR MEMORY MODE

9. Clear Memory Mode

A: OPERATION

1. WITHOUT SUBARU SELECT MONITOR

Current trouble codes shown on the display are
cleared by turning the ignition switch OFF after
conducting on-board diagnostics operation. Previ-
ous trouble codes, however, cannot be cleared
since they are stored in the TCM memory which is
operating on the back-up power supply. These
trouble codes can be cleared by removing the
specified. Remove TCM connector at least 2 min-
utes.

CLEAR MEMORY:

Remove TCM connector (B56).

• TCM connector is located in the line to the mem-
ory back-up power supply of the TCM. Removal of
this connector clears the previous trouble codes
stored in the TCM memory.
• Be sure to remove TCM connector for at least the
specified length of time. Otherwise, trouble codes
may not be cleared.

2. WITH SUBARU SELECT MONITOR

Refer to Subaru Select Monitor for information
about how to clear trouble codes.
<Ref. to AT-23, CLEAR MEMORY MODE, OPER-
ATION, Subaru Select Monitor.>

AT-28

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

POWER INDICATOR LIGHT DISPLAY

10.POWER Indicator Light Display

A: INSPECTION

When any on-board diagnostics item is malfunctioning, the display on the POWER indicator light blinks from
the time the malfunction is detected after starting the engine until the ignition switch is turned OFF. The mal-
functioning part or unit can be determined by a DTC during on-board diagnostics operation. Problems which
occurred previously can also be identified through the memory function. If the POWER indicator does not
show a problem (although a problem is occurring), the problem can be determined by checking the perfor-
mance characteristics of each sensor using the select monitor. Indicator signal is as shown in the figure.

AT-00344

2 secs

2 secs

2 secs

• Ignition switch (engine OFF)

ON

ON

ON

ON

OFF

OFF

OFF

OFF

• Normal

• Abnormal (Trouble occurs.)

• Normal (power switch ON)

0.25 secs

Blink

Power indicator light ON

AT-29

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)

11.List of Diagnostic Trouble Code (DTC)

A: LIST

DTC No.

Item

Content of diagnosis

Index

11

Engine speed signal

Detects open or shorted 
input signal circuit.

<Ref. to AT-42, DTC 11 ENGINE SPEED SIGNAL, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

23

Mass air flow signal 
(TURBO model)

Detects open or shorted 
output signal circuit.

<Ref. to AT-46, DTC 23 MASS AIR FLOW SIGNAL 
(TURBO MODEL), Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

27

ATF temperature sensor

Detects open or shorted 
input signal circuit.

<Ref. to AT-48, DTC 27 ATF TEMPERATURE SENSOR, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

31

Throttle position sensor

Detects open or shorted 
input signal circuit.

<Ref. to AT-52, DTC 31 THROTTLE POSITION SEN-
SOR, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

33

Front vehicle speed sensor

Detects open or shorted 
input signal circuit.

<Ref. to AT-58, DTC 33 FRONT VEHICLE SPEED SEN-
SOR, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

36

Torque converter turbine 
speed sensor

Detects open or shorted 
input signal circuit.

<Ref. to AT-64, DTC 36 TORQUE CONVERTER TUR-
BINE SPEED SENSOR, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

38

Torque control signal

Detects open or shorted 
input signal circuit.

<Ref. to AT-68, DTC 38 TORQUE CONTROL SIGNAL, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

45

Intake manifold pressure 
signal (Non-TURBO model)

Detects open or shorted 
input signal circuit.

<Ref. to AT-70, DTC 45 INTAKE MANIFOLD PRES-
SURE SIGNAL (NON-TURBO MODEL), Diagnostic Pro-
cedure with Diagnostic Trouble Code (DTC).>

71

Shift solenoid 1

Detects open or shorted 
output signal circuit.

<Ref. to AT-72, DTC 71 SHIFT SOLENOID 1, Diagnostic 
Procedure with Diagnostic Trouble Code (DTC).>

72

Shift solenoid 2

Detects open or shorted 
output signal circuit.

<Ref. to AT-76, DTC 72 SHIFT SOLENOID 2, Diagnostic 
Procedure with Diagnostic Trouble Code (DTC).>

73

Low clutch timing solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-80, DTC 73 LOW CLUTCH TIMING SOLE-
NOID, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

74

2-4 brake timing solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-84, DTC 74 2-4 BRAKE TIMING SOLENOID, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

75

Line pressure duty solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-88, DTC 75 LINE PRESSURE DUTY SOLE-
NOID, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

76

2-4 brake duty solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-92, DTC 76 2-4 BRAKE DUTY SOLENOID, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

77

Lock-up duty solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-96, DTC 77 LOCK-UP DUTY SOLENOID, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

78

SPORT shift solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-102, DTC 78 SPORT SHIFT SOLENOID, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

79

Transfer duty solenoid

Detects open or shorted 
output signal circuit.

<Ref. to AT-106, DTC 79 TRANSFER DUTY SOLENOID, 
Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

86

VDC communication signal

Detects open or shorted 
input signal circuit.

<Ref. to AT-112, DTC 86 VDC COMMUNICATION SIG-
NAL, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

93

Rear vehicle speed sensor

Detects open or shorted 
input signal circuit.

<Ref. to AT-116, DTC 93 REAR VEHICLE SPEED SEN-
SOR, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>