Rio L4-1.5L (2001)
Control Module: All Technical Service Bulletins
A/T - Various DTC's Set With No Defect Present
VOLUME:
2
GROUP:
Transmission/Driveline
NUMBER:
007
MODEL:
Sephia/Spectra/Rio
DATE:
December 2001
SUBJECT:
Sephia/Spectra and Rio TCM Logic Revision
This bulletin provides information related to a logic change in the Transmission Control Module (TCM) for 2001 MY Rio and 1998 through 2001 MY
Sephia and Spectra vehicles built after 10/18/00.
On vehicles built before 10/18/00, under certain driving conditions the following DTC's may be stored without a true defect being present: P0705,
P0740, P0731, P0732, P0733, and P0734.
TCM's in vehicles built after 10/18/00 use a revised diagnostic routine software to reduce incidence of related DTC's.
The revised TCM should be used to repair affected vehicles experiencing repeat incidence of above mentioned DTC's.
Note:
The part number for the revised TCM's did not change. However, all TCM's currently in PDC stock have the revised logic. When in doubt as to
which TCM version a vehicle is equipped with, use the illustration shown to properly identify the version.
PRELIMINARY:
^
Familiarize yourself with the procedures outlined in TSB, Transmission/Driveline 003. Obtain an A/T diagnosis worksheet and fill it out as you
proceed.
