Subaru Legacy 2002 Service Manual page 1882

DIAGNOSTIC PROCEDURE FOR NO-DIAGNOSTIC TROUBLE CODE (DTC)
No.
1 CHECK KICK-DOWN SWITCH OPERATION. When the accelerator pedal
2 CHECK KICK-DOWN SWITCH GROUND
LINE.
1) Disconnect connector from kick-down
switch.
2) Measure resistance of harness connector
between kick-down switch and chassis
ground.
Connector & terminal
(B129) No. 1 — Chassis ground:
3 CHECK KICK-DOWN SWITCH.
Measure resistance for kick-down switch
when depressing the accelerator pedal.
Terminals
No. 1 — No. 2:
4 CHECK KICK-DOWN SWITCH.
Measure resistance for kick-down switch
when pressing the accelerator pedal.
Terminals
No. 1 — No. 2:
5 CHECK HARNESS CONNECTOR
BETWEEN TCM AND KICK-DOWN SWITCH.
1) Turn ignition switch OFF.
2) Disconnect connectors from kick-down
switch.
3) Measure resistance of harness connector
between TCM and kick-down switch.
Connector & terminal
(B55) No. 11 — (B129) No. 2:
6 CHECK HARNESS CONNECTOR
BETWEEN TCM AND KICK-DOWN SWITCH.
Measure resistance of harness connector
between TCM and chassis ground.
Connector & terminal
(B55) No. 11 — Chassis ground:
7 CHECK INPUT SIGNAL FOR TCM.
1) Turn ignition switch to OFF.
2) Connect connector to kick-down switch.
3) Turn ignition switch ON (with engine OFF).
4) Measure signal voltage for TCM when
depressing the accelerator pedal.
Connector & terminal
(B55) No. 11 (+) — Chassis ground (−):
8 CHECK INPUT SIGNAL FOR TCM.
Measure signal voltage for TCM when press-
ing the accelerator pedal.
Connector & terminal
(B55) No. 11 (+) — Chassis ground (−):
Step
is depressed, does "ON"
displayed?
Is the resistance less than
1 Ω?
Is the resistance less than
1 Ω?
Is the resistance more than
1 MΩ?
Is the resistance less than
1 Ω?
Is the resistance more than
1 MΩ?
Is the voltage less than 1
V?
Is the voltage more than
6.5 V?
AT-113
Automatic Transmission (Diagnostics)
Check Yes
Go to step
CHECK POWER
MODE SWITCH.
<Ref. to AT-116,
CHECK POWER
MODE SWITCH,
Diagnostic Proce-
dure for No-diag-
nostic Trouble
Code (DTC).>
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 8.
A temporary poor
contact of the
connector and
harness may be
the cause. Repair
harness and con-
nector in the
TCM.
No
Go to step 2.
Repair open cir-
cuit in harness
between kick-
down switch and
chassis ground.
Replace kick-
down switch.
<Ref. to SP-4,
Accelerator
Pedal.>
Replace kick-
down switch.
Repair open cir-
cuit in harness
between TCM and
kick-down switch.
Repair short cir-
cuit in harness
between TCM and
chassis ground.
Go to step 9.
Go to step 9.