Subaru IMPREZA 2002 Service Manual page 179

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Yes
i o
to step 4.
;o
to step 5.
; o
to step 6.
; o
to step 7.
Step
3 CHECK HARNESS CONNECTOR BETWEEN
TCM AND DROPPING RESISTOR.
1)Disconnect the connector from TCM.
2)Measure the resistance of harness between
TCM connector and dropping resistor connec-
tor.
Connector & terminal
(B54) NO. 18
-
(84)
NO.
1:
4 CHECK HARNESS CONNECTOR BETWEEN
TCM AND DROPPING RESISTOR.
Measure the resistance of harness between
dropping resistor connector and chassis
ground.
Connector & terminal
(B4)
No.
1
-
Chassis ground:
5
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND DROPPING RESIS-
TOR.
1
)Disconnect the connector from transmission.
2)Measure the resistance of harness between
transmission and dropping resistor connector.
Connector & terminal
(B4)
NO.
2
-
( B l l )
NO.
5:
6
CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND DROPPING RESIS-
TOR.
Measure the resistance of harness between
dropping resistor connector and chassis
ground.
Connector & terminal
(B4)
No.
2
-
Chassis ground:
7 CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from transmission
and TCM.
3)Measure the resistance of harness between
TCM and transmission connector.
Connector & terminal
(B54)
NO.
9
-
(B1 1)
NO. 5:
8 CHECK HARNESS CONNECTOR BETWEEN
TCM AND CHASSIS GROUND.
Measure the resistance of harness between
TCM and chassis ground.
Connector & terminal
(B54)
No.
9
-
Chassis ground:
9
CHECK LINE PRESSURE DUTY SOLENOID.
Measure the resistance between transmission
connector receptacle's terminals.
Terminal
(T4)
NO.
5
-
NO.
16:
10 PREPARE SUBARU SELECT MONITOR.
No
Repair open circuit
in harness
between TCM and
dropping resistor
connector.
Repair short circuit
in harness
between TCM and
dropping resistor
connector.
Repair open circuit
in harness
between dropping
resistor and trans-
mission connector.
Repair short circuit
in harness
between dropping
resistor and trans-
mission connector.
Check
Is the resistance less than 1
n?
i o to step 8.
Is the resistance more than 1
MR?
Repair open circuit
in harness
between TCM and
transmission con-
Is the resistance less than 1
Q?
; o to step 9.
20
to step 10.
; o to step 13.
Is the resistance more than 1
MQ?
Repair short circuit
in harness
between TCM and
transmission con-
nector.
Go to step 16.
Go to step 11.
Is the resistance less than 1
n?
Is the resistance more than 1
MR?
I s
the resistance between 2.0
and 4.5 R?
Do
you have a Subaru Select
Monitor?
I
nector.
AT-87