Subaru Impreza 2003 Service Manual page 1710

DIAGNOSTIC PROCEDURE FOR SELECT MONITOR COMMUNICATION
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
9 CHECK HARNESS/CONNECTOR BETWEEN
TCM AND DATA LINK CONNECTOR.
Measure the resistance between TCM and
data link connector.
Connector & terminal
(B56) No. 24 — (B40) No. 6:
10 CHECK INSTALLATION OF TCM CONNEC-
TOR.
Turn the ignition switch to OFF.
11 CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in control
Check
Is the resistance more than 1
MΩ?
Is the TCM connector inserted
into TCM?
module and data link connec-
tor?
4AT-40
Yes
Go to step 10. Repair the har-
ness and connec-
tor between TCM
and data link con-
nector.
Go to step 11. Insert the TCM
connector into
TCM.
Repair the poor Replace the TCM.
contact. <Ref. to 4AT-70,
Transmission Con-
trol Module
(TCM).>
No