Info - AF23-5 Transaxle Replacement and TCM Reprogramming
| Subject: | AF23-5 Transaxle Replacement and TCM Reprogramming |
| Models: | 2003 Saturn Ion Sedans with AF23-5 Transaxle (RPO M43) |
| Attention: | General Manager, Fixed Operations Manager, Technician |
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).
Purpose:
The purpose of this bulletin is to provide transaxle replacement guidelines for 2003 model year Saturn ION sedans equipped with AF23-5 transaxles. Refer to the replacement guidelines below:
| • | 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 Information:
Notice: Ensure the proper TCM reprogramming is performed
after:
• Replacing a 2003 model year AF23-5 transaxle assembly with a 2004 model
year AF23-5 transaxle assembly, or
• Replacing a 2003 model year 1st design AF23-5 transaxle assembly with
a 2003 model year 2nd design AF23-5 transaxle assembly
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 transaxlescannot 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
ION Sedan Application | Use 2004MY Transaxle Assembly Part Number | Reprogram TCM using 2004MY Calibration |
|---|---|---|
14/15" tires (ION 1, ION 2) | 24228590 | 24229043 |
16" tires (ION 3) | 24228590 | 24229042 |
TCM Reprogramming Guide when replacing a 2003 model year 1st design AF23-5 Transaxle with a 2003 model year 2nd design AF23-5 Transaxle
ION Sedan Application | Use 2nd Design Transaxle Assembly Part Number | Reprogram TCM using 2nd Design Calibration |
|---|---|---|
14/15" tires (ION 1, ION 2) | 24228580 | 24226961 |
16" tires (ION 3) | 24228580 | 24226960 |
