Diagnostic Procedure For No-Diagnostic Trouble Code (Dtc) - Subaru 2003 LEGACY Service Manual

DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)

15.Diagnostic Procedure for No-diagnostic Trouble Code (DTC)
A: CHECK GEAR POSITION.
1 CHECK GEAR POSITION.
1) Lift-up the vehicle and place safety stand.
NOTE:
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.
•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 di-
agnosis is finished, perform the ABS memory
clearance procedure of on-board diagnostics
system. <Ref. to ABS-22, Clear Memory
Mode.> or <Ref. to VDC-25, Clear Memory
Mode.>
2 CHECK SPECIFICATIONS.
Is vehicle with VDC system or SPORT shift?
Step
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Value
Does the transmission gear
correspond to the gear which
is shown on display?
With VDC system or SPORT
shift
AT-121
Yes
Go to step 2. Check shift sole-
noid 1 and shift
solenoid 2 signal
circuit. <Ref. to
AT-72, DTC 71
SHIFT SOLE-
NOID 1, Diagnos-
tic Procedure with
Diagnostic Trou-
ble Code (DTC).>
and <Ref. to AT-
76, DTC 72 SHIFT
SOLENOID 2,
Diagnostic Proce-
dure with Diagnos-
tic Trouble Code
(DTC).>
Go to step CHECK Go to step CHECK
BRAKE SWITCH. FWD SWITCH.
<Ref. to AT-125, <Ref. to AT-122,
CHECK BRAKE CHECK FWD
SWITCH., Diag- SWITCH., Diag-
nostic Procedure nostic Procedure
for No-diagnostic for No-diagnostic
Trouble Code Trouble Code
(DTC).> (DTC).>
No