Technical Service Information
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Technical Service Information THM AF23/33-5 - RE5F22A - AW55-50N PRELIMINARY INFORMATION GENERAL DESCRIPTION The AF23/33-5 - RE5F22A - AW55-50N transaxle is The three planetary gear sets provide the five a fully automatic, five speed, electronically forward gear ratios and reverse. Changing gear ratios controlled, front wheel drive transmission, as shown is fully automatic and is accomplished through the use in Figure 1. It consists primarily of a four element of a Transmission Control Module (TCM). The TCM torque converter, three planetary gear sets, friction recieves and monitors various electronic sensor and mechanical clutches and a pressurization and inputs and uses this information to shift the control system. transmission at the optimum time. The four element torque converter contains a pump, The TCM commands shift solenoids, within the a turbine, a pressure plate assembly splined to the transaxle, on and off to control shift timing. The TCM turbine, and a stator assembly. The torque converter controls line pressure to maintain proper shift feel and acts as a fluid coupling to smoothly transmit power clutch apply pressure. The TCM also controls the from the engine to the transmission. It also apply and release of the torque converter clutch which hydraulically provides additional torque allows the engine to deliver the maximum fuel multiplication when required. The pressure plate, efficiency without sacrificing vehicle performance. when applied, provides a mechanical "direct drive" A Component Application chart and solenoid application chart have been provided for you in Figure 3. Continued on next Page G.M. Designation AF23/33-5 Found In: Saturn Vue 2002-2006 (3.0L/3.5L V6) Saturn Ion Sedan 2002-2004 (2.2L L4) Saturn Ion 2005-2006 (2.2 L4) 4T45E Chevy Equinox 2005-2006 (3.4L V6) Pontiac Torrent 2006 (3.4L V6) Vauxhall Opel (European) Nissan Designation RE5F22A Found In: Nissan Maxima SE 2004 (3.5LV6) S IS A NNAI 3 41 2 - 0 0 Nissan Maxima 2005-2006 (3.5LV6) 5 4 5A 50 8 4 5 Nissan Quest SE 2004 (3.5LV6) Nissan Quest SL/SE 2005 (3.5LV6) Infiniti I35 2003-2004 (3.5L V6) Saab Designation AW55-50SN Found In: 9'3 2003-2005 2.0L L4 2.8L V6 9'3 2006 2.0L L4 9'5 2002-2005 2.3L L4 3.0L V6 Volvo Designation AW55-50/51SN Found In: Some Volvo Models 2001-2006 40,60,70, 80 & 90 Series, Cross Country Equipped With 1.9L L4, 2.3L, 2.4L 2.5L L5 Copyright © 2006 ATSG Figure 1 2 Automatic Transmission Service Group Technical Service Information GENERAL DESCRIPTION (Cont'd) 1. ATF has been changed Transaxle Designation 2. Transmission has been replaced 3. Transmission has been rebuilt AF23/33-5 (Saturn) AW55-50/51SN (Volvo) You must use a scan tool with the necessary software RE5F22A (Nissan) to reset the fluid life monitor to 100%. Five speed computer controlled front wheel drive transaxle with Lock Up (TCC), (also available in All All Wheel Drive (AWD) Wheel Drive (AWD). The AWD operates automatically without any RPO M45 AWD models action required by the driver. If the front wheels begin RPO M09 FWD models to slip, the rear wheels will automatically begin to Manufactured in: Japan drive the vehicle. There may be some engagement Towing capacity: 2,500 lbs. noise during hard use, this is considered normal. Weight; 198 lbs. Power to the rear wheels is routed through a Power Take off Unit (PTU), which contains a Hypoid gear Transaxle Fluid: ( fill-for-life) set and there is no On/Off switch. The PTU transfers Saturn: Aisin AF23/33-5 type T-IV P/N 889009250 power from the transaxle through the Prop shaft to (in Canada, P/N 22689186). the Rear Drive Module. Volvo AW55-50/51SN P/N 1161540-8. During normal driving on dry pavement. The AWD Nissan RE5F22A Nissan Matic "K" system is not active. When the front wheels spin, the Fluid capacity 8.2 qt. (7.8L) Synthetic. system automatically engages the rear wheels until the front wheels regain traction. NEVER replace or mix with DEXRON III or If the AWD system is exposed to heavy use, the DEXRON VI. Checking the fluid level on a Saturn AWD will turn off to protect the system from which has no “dipstick tube” but does have a overheating. When the system cools down, it will “dipstick” that is locatedon the inboard side of the reactivate automatically. If the clutch starts to transaxle and is attached with a retaining bolt. The overheat the fluid will bypass the clutch to prevent it retaining bolt will have to be removed to check fluid from being damaged. During the time the fluid is in level. the bypass mode, the clutch, the remains disengaged Important: If the transmission needs to be filled, preventing power flow to the rear wheels. be sure to remove the fill plug which is located next to The PTU uses a special synthetic hypoid gear oil. the Park/Neutral Switch. DO NOT remove the Third Which is also intended for lifetime service, gear band anchor located near the same area. Removal VERSATRAK (R) P/N 12378514 (in Canada of the Third gear band anchor will result in a loss of 88901045) . third gear. This can not be corrected in the vehicle by replacing the bolt. The 3rd gear band will move out of Rear Drive Module (RDM) place and the transaxle will have to be removed and The RDM is composed of two sections bolted disassembled to correct the problem. Volvo models together, which takes power from the propshaft and have filler tube and dipstick in the same location as transfers it to the rear axles. The differential clutch Saturn. The fill plug is located at the top of the valve and drum assembly can be serviced as a unit. The ring body side cover. and pinion are not serviceable. In order to obtain an accurate oil level, a rear drive module priming Resetting the Fluid Life Monitor: (some models) procedure must be performed. Refer to a factory The TCM calculates the fluid life and then signals service manual for the proper procedure. the IPC when fluid life is less than 10%. The IPC will turn on the Service Soon Lamp on some models when Towing it’s time for the fluid to be changed. At this time the Maximum towing capacity is 2,900 lbs (1,300kg) TCM will log code DTC 1868 indicating the with five passengers or 3,500 lbs (1,575 kg) with two transmission fluid requires changing. The fluid life passengers. monitor system will need to be reset when the Copyright © 2006 ATSG following occur. Automatic Transmission Service Group 3.