Subaru Legacy 2003 Service Manual page 2424

DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK VEHICLE.
Is the target model equipped with SPORT
shift?
2 CHECK SPORT SHIFT SWITCH.
Does LED light up when select lever is moved
to SPORT shift mode?
3 CHECK SPORT SHIFT SWITCH.
Does LED light up when select lever is moved
to shift up side?
4 CHECK SPORT SHIFT SWITCH.
Does LED light up when select lever is moved
to shift down side?
5 CHECK STEERING SHIFT SWITCH.
Does LED light up when steering shift switch +
side is pressed?
6 CHECK STEERING SHIFT SWITCH.
Does LED light up when steering shift switch –
side is pressed?
7 CHECK SPORT SHIFT SWITCH GROUND
LINE.
1) Turn ignition switch to OFF.
2) Disconnect connector from SPORT shift
switch.
3) Measure resistance of harness between
SPORT shift switch connector and chassis
ground.
Connector & terminal
(B237) No. 4 —- Chassis ground:
Is the measured value less than the speci-
fied value?
8 CHECK SPORT SHIFT SWITCH.
Measure resistance between SPORT shift
switch terminals.
Connector & terminal
(B237) No. 4 —- No. 5:
Does the measured value exceed the specified
value?
9 CHECK SPORT SHIFT SWITCH.
1) Move select lever to SPORT shift mode.
2) Measure resistance between SPORT shift
switch terminals.
Connector & terminal
(B237) No. 4 — No. 5:
Is the measured value less than the speci-
fied value?
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Value
Model with sport shift
Lights up.
Lights up.
Lights up.
Lights up.
Lights up.
1 Ω
1 MΩ
1 Ω
AT-149
Yes
Go to step 2. Go to step SYMP-
TOM RELATED
DIAGNOSTIC.
<Ref. to AT-160,
Symptom Related
Diagnostic.>
Go to step 3. Go to step 7.
Go to step 4. Go to step 14.
Go to step 5. Go to step 21.
Go to step 6. Go to step 28.
Go to "Inspection Go to step 32.
of SPORT shift
indicator" proce-
dures. <Ref. to
AT-156, CHECK
SPORT SHIFT
INDICATOR.,
Diagnostic Proce-
dure for No-diag-
nostic Trouble
Code (DTC).>
Go to step 8. Repair open circuit
in harness
between SPORT
shift switch and
chassis ground.
Go to step 9. Replace lever
plate assembly.
Go to step 10. Replace lever
plate assembly.
No