Sable V6-183 3.0L DOHC VIN S MFI (1997)
Make sure WDS is docked or attached to vehicle battery supply.
Verify WDS software is at the latest release level.
If there is a communication error, attempt to communicate with a different diagnostic scan tool, such as NGS, NGS+, VCM or another WDS.
IF COMMUNICATION STILL CANNOT BE ESTABLISHED, VOLTAGE DROP PCM POWERS, GROUNDS, AND CHECK VREF.
PCM REPLACEMENT - STANDARD
Open WDS vehicle session with original PCM installed in vehicle. If the original PCM is not able to communicate, to open a session, proceed to
the Blank Path Programming procedure.
Install the new PCM.
IF WDS NEEDS TO BE USED ON A DIFFERENT VEHICLE WHILE THE NEW PCM IS BEING INSTALLED, PLACE THE VEHICLE
SESSION ON "HOLD" FOR USE LATER.
Attempt to start the vehicle.
Run KOEO Self Test to check for diagnostic trouble codes (DTCs) in PCM.
Check for DTC P0602/P0605/P1639.
If DTC P0602/P0605/P1639 is present then Programmable Module Installation (PMI) procedure must be performed. Use the WDS session
opened at Step 1.
If DTC P0602/P0605/P1639 is not present, then verify Programmable Parameters are properly set such as tire size, axle ratio, etc.
Check for DTC B2900.
If DTC B2900 is present, perform PMI on the ABS module. Do Not replace ABS module for this procedure when directed. You may be
prompted to enter the 9 lines of PCM As-Built data during this procedure.
If DTC B2900 is not present proceed to Step 7.
Diagnose all other DTCs following normal diagnostic procedures.
REPROGRAMMING DOES NOT COMPLETE OR FAILS - Existing PCM Reprogramming Or PCM Replacement
Verify all cables are properly connected.
Verify vehicle battery is at proper charge level.
Verify scan tool battery is at proper charge level.
Attempt reprogramming procedure again.
If reprogramming still does not complete properly, save current session, reboot WDS, open previous session, and attempt reprogramming again.
If reprogramming still does not complete or you are now unable to communicate with PCM, proceed to the Blank Path Programming procedure.
BLANK PATH PROGRAMMING - Existing PCM Reprogramming Or PCM Replacement
Perform this procedure prior to PCM replacement if a vehicle comes in with a PCM that will not communicate, or if steps earlier in this TSB directed
you to this procedure.
Verify powers and grounds to PCM by loading and voltage drop testing circuits.
Follow Pin Point Tests to verify network integrity.
IGNITION MUST REMAIN IN THE OFF POSITION UNTIL PERFORMING STEP 8. DO NOT TURN THE KEY ON WHEN WDS IS