Subaru Legacy 2004 Service Manual page 2600

Diagnostic Procedure without Diagnostic Trouble Code (DTC)
Step
18 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND SPORT
SHIFT SWITCH.
1) Disconnect the steering roll connector.
2) Measure the resistance of harness
between SPORT shift switch connector and
chassis ground.
Connector & terminal
(B116) No. 9 — Chassis ground:
19 CHECK THE INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Connect all the connectors.
2) Turn the ignition switch to ON (engine
OFF).
3) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 25 (+) — Chassis ground (
20 CHECK THE INPUT SIGNAL TO BODY INTE-
GRATED UNIT.
1) Shift and hold the select lever to up side.
2) Check the signal voltage for body inte-
grated unit.
Connector & terminal
(B281) No. 25 (+) — Chassis ground (
21 CHECK STEERING SHIFT SWITCH
GROUND CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from steering roll
connector.
3) Measure the resistance of harness
between steering roll connector and chassis
ground.
Connector & terminal
(ST3) No. 3 — Chassis ground:
22 CHECK STEERING SHIFT SWITCH.
Measure the resistance between steering roll
connector terminals.
Connector & terminal
(ST3) No. 1 — No. 3:
23 CHECK STEERING SHIFT SWITCH.
1) Press and hold the steering shift switch to +
side.
2) Measure the resistance between the steer-
ing shift switch terminals.
Connector & terminal
(ST3) No. 1 — No. 3:
24 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND STEERING
ROLL CONNECTOR.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance of harness
between the body integrated unit connector
and steering roll connector.
Connector & terminal
(B281) No. 15 — (B68) No. 2:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the resistance more than 1
M"?
Is the voltage more than 9 V?
$
):
Is the voltage less than 1 V?
$
):
Is the resistance less than 1
"?
Is the resistance more than 1
M"?
Is the resistance less than 1
"?
Is the resistance less than 1
"?
5AT(diag)-141
Yes
Go to step 19. Repair the short
circuit of harness
between the
SPORT shift
switch connector
and body inte-
grated unit con-
nector.
Go to step 20. Replace the body
integrated unit.
<Ref. to SL-46,
Body Integrated
Unit.>
Go to step 26. Replace the body
integrated unit.
<Ref. to SL-46,
Body Integrated
Unit.>
Go to step 22. Repair the open
circuit in harness
between steering
roll connector and
chassis ground.
Go to step 23. Replace the steer-
ing roll connector
or steering shift
switch. Or repair
the poor contact in
connector.
Go to step 24. Replace the steer-
ing roll connector
or steering shift
switch. Or repair
the poor contact in
connector.
Go to step 25. Repair the open
circuit in harness
between body inte-
grated unit con-
nector and
steering roll con-
nector, or poor
contact in connec-
tor.
No