Subaru Legacy 2002 Service Manual page 1814

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
12 CHECK HARNESS CONNECTOR
BETWEEN TRANSMISSION AND ATF TEM-
PERATURE SENSOR.
Measure resistance of harness between ATF
temperature sensor and transmission connec-
tor.
Connector & terminal
(T4) No. 12 — (AT1) No. 1:
13 CHECK HARNESS CONNECTOR
BETWEEN TRANSMISSION AND ATF TEM-
PERATURE SENSOR.
Measure resistance of harness between
transmission connector and transmission
ground.
Connector & terminal
(T4) No. 11 — Transmission ground:
14 CHECK HARNESS CONNECTOR
BETWEEN TRANSMISSION AND ATF TEM-
PERATURE SENSOR.
Measure resistance of harness between
transmission connector and transmission
ground.
Connector & terminal
(T4) No. 12 — Transmission ground:
Step
Is the resistance less than
1 Ω?
Is the resistance more than
1 MΩ?
Is the resistance more than
1 MΩ?
AT-45
Automatic Transmission (Diagnostics)
Check Yes
Go to step 13.
Go to step 14.
Replace ATF tem-
perature sensor.
<Ref. to AT-42,
Shift Solenoids,
Duty Solenoids
and ATF Tempera-
ture Sensor.>
No
Repair open cir-
cuit in harness
between ATF tem-
perature sensor
and transmission
connector.
Repair short cir-
cuit in harness
between ATF tem-
perature sensor
and transmission
connector.
Repair short cir-
cuit in harness
between ATF tem-
perature sensor
and transmission
connector.