Subaru 2003 LEGACY Service Manual page 147

DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK HOLD SWITCH OPERATION.
When hold switch is turned OFF, does LED
light up?
2 CHECK HOLD SWITCH OPERATION.
When hold switch is turned ON, does LED light
up?
3 CHECK HOLD INDICATOR LIGHT.
1) Turn ignition switch to OFF.
2) Remove combination meter.
3) Remove HOLD indicator light bulb from
combination meter.
Is HOLD indicator light bulb OK?
4 CHECK HOLD SWITCH GROUND LINE.
1) Turn ignition switch to OFF.
2) Disconnect connector from hold switch.
3) Measure resistance of harness connector
between hold switch and chassis ground.
Connector & terminal
(B133) No. 4 — Chassis ground:
Is the measured value less than the speci-
fied value?
5 CHECK HOLD SWITCH.
1) Hold switch turned ON.
2) Measure resistance between terminals of
hold switch.
Terminals
No. 4 — No. 5:
Is the measured value less than the speci-
fied value?
6 CHECK HOLD SWITCH.
1) Hold switch turned OFF.
2) Measure resistance between terminals of
hold switch.
Terminals
No. 4 — No. 5:
Does the measured value exceed the spec-
ified value?
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND HOLD SWITCH.
1) Disconnect connector TCM and combina-
tion meter.
2) Measure resistance of harness connector
between TCM and hold switch.
Connector & terminal
(B55) No. 16 — (B133) No. 5:
Is the measured value less than the speci-
fied value?
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Value
LED lights up.
LED lights up.
Bulb is normal.
1 Ω
1 Ω
1 MΩ
1 Ω
AT-145
Yes
Go to step 5. Go to step 2.
Go to step Inspec- Go to step 3.
tion of SPORT
shift switch. <Ref.
to AT-148,
CHECK SPORT
SHIFT SWITCH.,
Diagnostic Proce-
dure for No-diag-
nostic Trouble
Code (DTC).>
Go to step 4. Replace HOLD
indicator light bulb.
<Ref. to IDI-14,
Combination
Meter Assembly.>
Go to step 5. Repair open circuit
in harness
between hold
switch and chassis
ground.
Go to step 6. Repair hold
switch.
Go to step 7. Repair hold
switch.
Go to step 8. Repair open circuit
in harness
between TCM and
hold switch con-
nector and poor
contact in cou-
pling connector.
No