48re ttva calibration. Apr 20, 2018 · Double check wiring/connector to TTVA.

48re ttva calibration If no DTCs are set relating to the TTVA, the TTVA is fully calibrated and ready for use. Mar 11, 2024 · Figure 3 – TTVA Codes Keep in mind, this wear typically starts because the manual shaft is being pushed sideways by the spring force of the switch. TRANSMISSION THROTTLE VALVE ACTUATOR - The TTVA consists of an electronic DC motor, which has two potentiometers and a gear driven system that controls the Throttle Valve in the valve body, for shift timing, passing gear below 4th gear and pressure control. Oct 20, 2011 · The TTVA does require an initialization period after the actuator has been removed or replaced. The actuator, attached to the case above the throttle-valve shaft, includes two potentiometers that provide input to the ECM as well as a DC motor that responds to ECM output. engine and the 48RE transmission, received an electronically controlled Transmission Throttle Valve Actuator (TTVA), as shown in Figure 7, for improved shift control. 1X Transmission Throttle Valve Actuator TTVA. sufficient time to perform the internal calibration procedures to learn the TTVA’s May 22, 2018 · Fits: 48RE model Transmissions w/diesel Motors 2003-2009 OE Part No. This will allow the ECM sufficient time to perform the internal calibration procedures to learn the TTVA’s current “zero” position. Failure codes including: P1751 (Throttle Valve Maximum Range) P1753 (Throttle Valve Mechanical Performance) Jan 3, 2024 · Buy ENA TTVA 48RE Transmission Throttle Valve Actuator Compatible With Dodge Ram 2003 2004 2005 2006 2007 2008 2009 2500 3500 L4 5. Jun 1, 2010 · In 2005, Dodge started using a transmission throttle-valve actuator (TTVA) instead of a TV cable on the 48RE diesel 2500 and 3500 Ram trucks. Jan 2, 2010 · The transmission throttle valve cable has been replace by the transmission throttle valve actuator (TTVA). The bottom line is this is caused by the electronics controlling the transmission and it is completely fixable through custom tuning. This will allow the ECM sufficient time to perform the internal calibration procedures to learn the TTVA's current “zero” position. See: Verification Tests\Transmission Verification Test\48RE Automatic Transmission - Diesel No >> Go To 3. The TTVA Position Sensor Signal is a 5V potentiometer that works similar to a TPS sensor. All changes in Sep 1, 2019 · These are very common 48RE complaints and some can be resolved with valve body work. Do not press on the accelerator pedal during this test. The motor circuit reverses polarity to drive the transmission throttle TTVA) shaft to either the full (TTV) shaft position or the closed TTV shaft position. Jan 1, 2013 · Every time the ignition is cycled on, the ECM performs the internal calibration procedure to find the current "zero" position. A push-in Transmission Range Sensor was implemented in model year 2002 to replace the screw-in Park/Neutral switch. Inspect the end of the TTVA shaft for cracks or damage. 90% of failures I have seen in the TTVA has been VB related or wiring harness related. After the actuator has been removed or replaced, move the ignition to the ON position for thirty (30) seconds. This Actuator has replaced the previous Throttle Valve Cable and all associated linkage. diesel and 48RE transmission were equipped with an electronically controlled Transmission Throttle Valve Actuator (TTVA). The TV valve wear is a known issue in the VB's, whne you start getting the TTVA codes the first thing is replace the TV valve and the VB wiring harness. 53041140AB ,53041140,99882 This is generally a high failure item and many times the cause of various issues. Aug 13, 2018 · The TTVA consists of an electric DC motor, two potentiometers, and a gear drive system. P1754 – Transmission Throttle Valve Actuator Stuck. Jun 30, 2010 · During the calibration procedure, the ECM is looking for at least 48 degrees of movement from minimum to maximum span and to establish a minimum range value. The Transmission Throttle Valve Actuator (TTVA) does not require any mechanical adjustments. Jul 12, 2014 · The TTVA does require an initialization period after the actuator has been removed or replaced. Apr 23, 2016 · The TTVA-equipped trucks are no more capable than the throttle-cable equipped trucks/transmissions. It has a DC motor that is controlled by the ECM, and two potentiometers as inputs to the ECM. 53041140AB. This will allow the ECM/TCM sufficient time to perform the internal calibration procedures to learn the TTVA’s current “zero” position. All the TTVA does is the same function as the throttle capable, controls the throttle valve in the valve body. Feb 19, 2018 · TTVA and APPS rarely actually go bad on these trucks and almost always from external cause. Dec 31, 2019 · Reason: To electronically control of the Throttle Valve inside the valve body. 7L Replacement For 53041140AB Nov 9, 2024 · OEM Part No. 48RE Transmission Throttle Valve Actuator Codes In 2005 Dodge began using a Transmission Throttle Valve Actuator (TTVA) on 48RE diesel 2500 and 3500 Ram trucks, instead of the T. More throttle= more pressure. Aug 21, 2014 · After the actuator has been removed or replaced, move the ignition to the ON position for thirty (30) seconds. Jan 18, 2023 · Throttle valve bore wear is especially problematic on the 48RE applications that use the Transmission Throttle Valve Actuator (TTVA) motor for throttle control. Can?t figure out how to load files to share but go to this link and you can download an excel workbook that will help show where 3-4,4-3 shift points occur and lockup/unlock points occur, adjusts automatically for tire size and axle ratio you enter, play with tables and see how it affects things. cable. This should work from '96-'07 trucks, and likely other applications as well. Mar 5, 2024 · Keep in mind, this wear typically starts because the manual shaft is being pushed sideways by the spring force of the switch. Jul 18, 2010 · The TTVA consists of an electric DC motor, two potentiometers, and a gear drive system. 48RE model Transmissions w/diesel Motors 2003-2009. Reconnect batteries, Then perform TTVA calibration, by moving the ignition to the ON position for thirty (30) seconds. . Nov 24, 2010 · On my ATS transmission you turn the valve body adjustment screw (there are 2 of them) one full turn counterclockwise to achieve about 10psi increase of pressure. The TTVA is mechanically connected to the transmission throttle valve in the valve body by the "D" shaped opening in the bottom of the TTVA shaft. Mar 11, 2024 · Learn to diagnose issues with the MUX switch in 48RE transmissions, including shift cable stress, stuck in Park, TTVA codes and wear. 5 volts during the sweep at C2 pin 27. I installed the same shift kit in my 48RE and had the same result, still shifting way too soon. Nov 14, 2010 · The TTVA consists of an electric DC motor, two potentiometers, and a gear drive system. During the calibrations procedure, the ECM is looking for at least 48 degrees of movement from minimum to maximum span and a minimum range. Sep 24, 2010 · Perform RE TRANSMISSION VERIFICATION TEST VER-1 (DIESEL). The computer has an algorithm to move the transmission throttle lever a specific distance relative to the engine throttle input and load. 9L 6. Remove the TTVA from the transmission. V. Over time (the more that the transmission is shifted through the gears), the shaft causes the transmission case manual shaft bore to wear where the manual shaft seal rides and where it is supposed Apr 20, 2018 · Double check wiring/connector to TTVA. The TTVA is mounted to the case above the throttle valve shaft. As the motor sweeps this voltage will change from less than 1 volt to 4. Jun 1, 2020 · Just installed a new BD billet proforce 48re in my 06 2500 over the weekend. Over time, the more that the transmission is shifted through the gears, the shaft causes the transmission case manual shaft bore to wear where the manual shaft seal rides and where it is supposed to be kept centered (Figure 4). The TTVA consists of an electric DC motor, two potentiometers, and a gear drive system. The TTVA is mechanically connected to the throttle valve in the valve body by the "D" shaped opening in the bottom of the TTVA shaft and retained Aug 31, 2024 · The TTVA , auto zeros every time TTVA gets power/signal from ECM , every key on , "NOTE: Each time the ignition is cycled to the on position, the ECM commands a TTVA internal calibration procedure (autozero) to determine the zero position. Once this is done, check the ECM for diagnostic trouble codes (DTCs). Replaces OE 53041140AB, 609-045, 214-3403. CHECK IF TTVA SHAFT END IS DAMAGED Turn the ignition off to the lock position. The TTVA is mechanically connected to the transmission throttle valve in the valve body by the “D” shaped opening in the bottom of the TTVA shaft. Parts Affected: 1. Both of these parameters can be affected by the throttle shaft adjustment bolt on the pressure regulator spring retaining bracket. xrgj qsbodn vfff mwoolqe hmdss mtthwrr lbi txanb kill brbjzwg ilgquf idadpe emhus iepc avhn