Subaru Legacy 2002 Service Manual page 1874

DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
15. Diagnostic Procedure for No-diagnostic Trouble Code (DTC)
A: CHECK GEAR POSITION.
No.
1 CHECK GEAR POSITION.
1) Lift-up the vehicle and place safety stand.
NOTE:
On AWD models, raise all wheels off ground.
2) Start the engine.
3) Move select lever to "D", and drive vehicle.
4) Read data of gear position using Subaru
Select Monitor.
¼ Gear position is indicated.
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but
this indicates no malfunction. When AT control
diagnosis is finished, perform the ABS
memory clearance procedure of on-board
diagnostics system. <Ref. to ABS-21, Clear
Memory Mode.>
2 CHECK VEHICLE.
S004794F15
Step
Does the transmission gear
correspond to the gear
which is shown on display?
Is the target model without
VDC system?
AT-105
Automatic Transmission (Diagnostics)
Check Yes
Go to step 2.
Go to step
CHECK FWD
SWITCH. <Ref. to
AT-106, CHECK
FWD SWITCH,
Diagnostic Proce-
dure for No-diag-
nostic Trouble
Code (DTC).>
S004794
No
Check shift sole-
noid 1 and shift
solenoid 2 signal
circuit. <Ref. to
AT-66, DTC 71
SHIFT SOLE-
NOID 1, Diagnos-
tic Procedure with
Diagnostic
Trouble Code
(DTC).> and
<Ref. to AT-70,
DTC 72 SHIFT
SOLENOID 2,
Diagnostic Proce-
dure with Diag-
nostic Trouble
Code (DTC).>
Go to step
CHECK BRAKE
SWITCH. <Ref. to
AT-109, CHECK
BRAKE SWITCH,
Diagnostic Proce-
dure for No-diag-
nostic Trouble
Code (DTC).>