Section 52 (Automatic Transaxle Diagnosis - 4T65-E): Identification: Notes
WARNING: This page is about a different car, the 2002 Buick Regal, 2002 Buick Century, 2001 Buick Regal, and 2001 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Vehicle is equipped with Supplemental Inflatable Restraint (SIR) system. When servicing vehicle, use care to avoid accidental air bag deployment. SIR system-related components are located in various locations throughout interior and exterior of vehicle, depending on application. Do not use electrical test equipment on or near these circuits. If necessary, deactivate SIR system before servicing components. See AIR BAG DEACTIVATION PROCEDURES article in GENERAL INFORMATION.
Transaxle has a metal identification plate or Service Replacement Transmission Assembly (SRTA) plate attached to rear face of transaxle. See Fig 1 . Transaxle RPO codes are MN7 or M15. Century models use RPO code M15. Regal models use RPO code MN7 or M15. The MN7 is a heavy duty model and has a 10.2" (258 mm) torque converter. The M15 model has a 9.6" (245 mm) torque converter.