Info - AF23-5 Transaxle Replacement And TCM Reprogramming (03-07-30-030A)

INFO - AF23-5 TRANSAXLE REPLACEMENT AND TCM REPROGRAMMING

TECHNICAL SERVICE BULLETIN

PURPOSE

This bulletin is being revised to include additional authorizations and information for replacing 2003 model year transaxles with 2004 model year transaxles. Please discard bulletin 03-07-30-030 (Section 07 - Transmission/Transaxle).

• A 2004 model year AF23-5 transaxle is authorized to replace any 2003 model year AF23-5 transaxle. This authorization is only valid when 2003 model year replacement transaxles are no longer available from Saturn Service Parts Operations.
• A 2003 model year 2nd design AF23-5 transaxle is authorized to replace a 2003 model year 1st design AF23-5 transaxle. This authorization is only valid when 1st design replacement transaxles are no longer available from Saturn Service Parts Operations.

The information contained in this bulletin provides the necessary reprogramming requirements that must be performed when installing a 2004 model year transaxle assembly in place of a 2003 model year transaxle assembly or when installing a 2003 model year 2nd design transaxle assembly in place of a 2003 model year 1st design transaxle assembly.

TCM REPROGRAMMING

When replacing a 2003 model year AF23-5 transaxle (P/N 24219881, 24224464, 24224483, 24226999, or 24228580) with a 2004 model year AF23-5 transaxle, it is necessary to reprogram the TCM using 2004 model year calibrations. The calibrations for the two model years of the AF23-5 transaxle are not interchangeable. Use the appropriate Reprogramming Guide below to determine the correct TCM calibration.

When replacing a 2003 model year 1st design AF23-5 transaxle (P/N 24219881, 24224464, or 24224483) with a 2003 model year 2nd design AF23-5 transaxle, it is necessary to reprogram the TCM using 2003 model year 2nd design calibrations. The calibrations for each of the AF23-5 transaxles are not interchangeable. Use the appropriate Reprogramming Guide below to determine the correct TCM calibration.

When replacing a 2003 model year 1st design AF23-5 original equipment (production) transaxle (P/N 24219881 or 24224464) with a 2003 model year 1st design AF23-5 service transaxle (P/N 24224483), it is not necessary to reprogram the TCM. However, 1st design service transaxles cannot be used to replace 2nd design original equipment (production) or service transaxles (P/N 24226999 or 24228580).

PARTS INFORMATION

TCM Reprogramming Guide when replacing a 2003 model year AF23-5 Transaxle with a 2004 model year AF23-5 Transaxle

TCM Reprogramming Guide when replacing a 2003 model year 1st design AF23-5 Transaxle with a 2003 model year 2nd design AF23-5 Transaxle