Spectra5 L4-2.0L (2005)
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"THIS ECM IS DIFFERENT TYPE" - The ECM on this vehicle is not the type subject to this reprogramming procedure
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"ALREADY REPROGRAMMED" - The reprogramming has previously been done on this vehicle.
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"REPROGRAMMING ERROR PLEASE CHECK SYSTEM" - In this case, you must reprogram manually by selecting menu option "02. LD 2.0
04-06MY TCU 23 SHIFT [ERROR]".
RESETTING AND RELEARNING AUTOMATIC TRANSMISSION ADAPTIVE VALUES:
Whenever the automatic transaxle control module is reprogrammed, the automatic transaxle adaptive values must be reset and must be relearned by the
control module to have good automatic transaxle shift quality. Each transaxle control module adjusts pressure during shifting to compensate for
variations in pressures and clutch clearances due to manufacturing tolerances to achieve the best shift quality.
AUTOMATIC TRANSMISSION ADAPTIVE VALUE RESETTING PROCEDURE:
1.
Use the scan tool to reset the automatic transaxle adaptive values in the automatic transaxle section. Select option "04. Resetting Adaptive Values"
and press "ENTER".
Note:
Disconnecting battery terminals on this and other late model vehicles will NOT reset adaptive values.
2.
Turn the ignition key on with the engine off and the transmission gear selector in park. Press the "[RST]" button and then press the "YES" button
when ready.
DYNAMIC AUTOMATIC TRANSAXLE ADAPTIVE LEARNING PROCEDURE:
Perform automatic transaxle relearn drive with the scan tool monitoring ATF temperature. After the ATF temperature reaches 122 degrees F (55 degrees
C) perform the following driving steps:
1.
Stop the vehicle and drive at constant 30% TPS shifting from 1st through 3rd gears. The shift RPM should be approximately 3000 RPM.
