Subaru Legacy 2002 Service Manual page 1865

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Automatic Transmission (Diagnostics)
No.
9 CHECK OUTPUT SIGNAL EMITTED FROM
TCM USING SUBARU SELECT MONITOR.
1) Move select lever to "N" with throttle fully
closed (vehicle speed 0 km/h or 0 MPH).
2) Read data of transfer duty solenoid using
Subaru Select Monitor.
¼ Transfer duty solenoid is indicated in "%".
10 CHECK OUTPUT SIGNAL EMITTED FROM
TCM USING SUBARU SELECT MONITOR.
1) Connect connectors to TCM and transmis-
sion.
2) Connect Subaru Select Monitor to data link
connector.
3) Turn ignition switch to ON (engine OFF)
and turn Subaru Select Monitor switch to ON.
4) Move select lever to "D" with throttle fully
open (vehicle speed 0 km/h or 0 MPH).
5) Read data of transfer duty solenoid using
Subaru Select Monitor.
¼ Transfer duty solenoid is indicated in "%".
11 CHECK OUTPUT SIGNAL EMITTED FROM
TCM USING SUBARU SELECT MONITOR.
1) Move select lever to "N" with throttle fully
close (vehicle speed 0 km/h or 0 MPH).
2) Rear data of transfer duty solenoid using
Subaru Select Monitor.
¼ Transfer duty solenoid is indicated in "%".
12 CHECK POOR CONTACT.
Step
Is the value between
approx. 60% and approx.
70%?
Is the value between 80
and 95%?
Is the value approx. 40%?
Is there poor contact in
transfer duty solenoid cir-
cuit?
AT-96
Check Yes
Even if "POWER"
indicator lights up,
the circuit has
returned to a nor-
mal condition at
this time. A tem-
porary poor con-
tact of the con-
nector or harness
may be the
cause. Repair
harness or con-
nector in the
transfer duty sole-
noid and TCM
connector.
Go to step 11.
Even if "POWER"
indicator lights up,
the circuit has
returned to a nor-
mal condition at
this time. A tem-
porary poor con-
tact of the con-
nector or harness
may be the
cause. Repair
harness or con-
nector in the
transfer duty sole-
noid and TCM
connector.
Repair poor con-
tact.
No
Go to step 12.
Go to step 12.
Go to step 12.
Replace TCM.
<Ref. to AT-49
Transmission
Control Module
(TCM).>