P0729 Allison, Dec 17, 2024 · What Does the P0729 Code Mea

P0729 Allison, Dec 17, 2024 · What Does the P0729 Code Mean? Diagnostic trouble code (DTC) P0729 stands for “Gear 6 Incorrect Ratio. Allison 1000 Valve Bodies At Wholesale Prices At Street Smart, we provide remanufactured valve bodies shipped direct from the factory at wholesale prices. The Allison electronic controls package oversees the operation of the transmission, controlling transmission upshifts and downshifts, and providing important information on the operation of your drive system. Ship Direct To Repair Shop We provide an out-the-door price, with shipping, for a replacement remanufactured Allison 1000 Series valve body direct to your repair shop. Allison 3000 & 4000 Gen 4 Fault Code: P0729 Incorrect 6th Gear Ratio DIAGNOSTIC RESPONSE: DNS, Attempt 5th, then 3rd CIRCUIT DESCRIPTION: The Transmission Control Module (TCM) uses input from the turbine speed and output speed sensors to determine the current commanded for steady-state gear ratio. Dec 3, 2013 · P0729 incorrect 6th gear ration Jump to Latest 6. Automatic transmissions shift gears using clutches to hold several elements of two or more planetary gear sets with varying gear ratios. On our way to Alaska my transmission went into limp mode and is stuck in third. Conditions for Setting the DTC DTC P0729 sets when the calculated 6th range ratio, steady state, differs from the known 6th range ratio. 3kb Download Allison Oct 12, 2024 · Allison 3000 & 4000 Gen 4 Fault Code: P0729 Incorrect 6th Gear Ratio October 12, 2024 DIAGNOSTIC RESPONSE: DNS, Attempt 5th, then 3rd CIRCUIT DESCRIPTION: The Transmission Control Module (TCM) uses input from the turbine speed and output speed sensors to determine the current commanded for steady-state gear ratio. The common causes of a P0729 code include a bad TCM, a failed transmission valve body, and a wiring issue. Refurbished to factory spec. Oct 26, 2024 · P0729 code indicates a problem with the gear ratio in the sixth gear, which can affect overall performance. [PDF] 13Mb Download Allison Transmission - Shift Selector - Operator and Diagnostic Trouble Code manual. The transmission defaults to 4th range while diagnostic response is active. It signals that there’s an incorrect gear ratio detected when attempting to shift into or maintain this particular gear. Action Taken When the DTC Sets The TCM illuminates the malfunction indicator lamp (MIL). Aug 15, 2024 · I have a 2003 GMC Sierra 3500, Allison 1000pk series The transmission shifts fine up to 3rd gear, however when it goes to shift to 4th, it almost feels like it is going into neutral. Mar 4, 2023 · 6th range is selected and attained. [PDF] 145. Oct 12, 2024 · Allison 1000 & 2000 Gen 5 Fault Code:P0729 Incorrect 6th Gear Ratio October 12, 2024 CIRCUIT DESCRIPTION: The TCM uses input from the turbine speed and the output speed sensors to determine the current commanded steady state gear ratio. If I stop and turn off the coach the ch Sep 7, 2024 · What are the common symptoms of OBDII code P0729 (Automatic Transmission 6th Gear Incorrect Ratio)? - Common symptoms include erratic shifting behavior, transmission slipping, and a noticeable decrease in fuel efficiency. DTC P0729 sets during steady state condition when the calculated sixth gea Sep 7, 2024 · How to repair P0729 — Automatic Transmission 6th Gear Incorrect Ratio Nov 3, 2020 · P0729: Gear 6 Incorrect Ratio DTC Trouble Code I had the Chrysler dealership run a scan on it and this is the code they found. In this Drivetrain 101, we show how to easily diagnose and repair the common P0871 trouble code on transmissions such as the 68RFE, 66RFE, 65RFE and more. ” The code is set once it is determined that the transmission is not in the desired gear. 2010 infiniti fx35 gear 6 incorrect - P0729 In the past couple of months, my trans lost power two times while driving. Aug 2, 2011 · I have a 2006 Duramax with the Allison in it. The Allison Advantage Your Allison Automatic is fully electronically controlled. The common symptoms of a P0729 code include poor fuel economy and incorrect transmission shifting. We were stranded 130 miles from home and Good Sam would only take me 50 miles and then $500 more to get me home. Mar 19, 2010 · I was havin a problem with my allison with it not shifting into drive or reverse some times and some times going in only to not shift. DTC P0602 Transmission Control Module (TCM) Not Programmed DTC P0613 TCM Processor DTC P0634 TCM Internal Temperature Too High DTC P0658 Actuator Supply Voltage 1 (HSD1) Low DTC P0659 Actuator Supply Voltage 1 (HSD1) High DTC P0729 Incorrect 6th Gear Ratio A A DTC P0751 Shift Solenoid 1 (SS1) Valve Performance-Stuck Off DTC P0752 Shift Solenoid Oct 12, 2024 · Allison 3000 & 4000 Gen 4 Fault Code: P0729 Incorrect 6th Gear Ratio October 12, 2024 DIAGNOSTIC RESPONSE: DNS, Attempt 5th, then 3rd CIRCUIT DESCRIPTION: The Transmission Control Module (TCM) uses input from the turbine speed and output speed sensors to determine the current commanded for steady-state gear ratio. Dec 17, 2024 · Code P0729 is set once the calculation based on data transmitted by sensors to the transmission control module falls outside the desired range. Mar 19, 2025 · 19 March, 2025 Allison 3000 & 4000 Gen 4 Fault Code: P0729 Incorrect 6th Gear Ratio DIAGNOSTIC RESPONSE: DNS, Attempt 5th, then 3rd CIRCUIT DESCRIPTION: The Transmission Control Module (TCM) uses input from the turbine speed and output speed sensors to determine the current commanded for steady-state gear ratio. 9K views 6 replies 3 participants last post by rodder55 Dec 3, 2013 rodder55 Discussion starter Sep 15, 2023 · What does the P0735 code mean? Learn more about this code’s meaning, common symptoms, and causes with this brief and informative guide. Thanks to the help of Larry at Danville performance and Mike L we determined it was a combo of a bad nsbu switch and junk in the valve body. I ran it for the first 80,000 miles and one of my salesmen has taken it to 120,000. CIRCUIT DESCRIPTION:The TCM uses input from the turbine speed and the output speed sensors to determine the current commanded steady state gear ratio. Allison Transmission 3000/4000 series fault code list - download PDF manual See also: Allison Transmission PDF Service Manuals Allison Transmission Fault Codes PDF manuals Title File Size Download Links Allison 3000-4000 Series Troubleshooting Manual. Jun 19, 2023 · 06 Diplomat with ISL400/Allison 3000. Oct 26, 2024 · What does the P0729 – Gear 6 Incorrect Ratio mean? The P0729 code indicates a problem with the sixth gear ratio in your vehicle’s transmission system. No deal! I tested the vehicle and it seemed to be functioning in normal mode. I got the OBD read today and it says "Gear 6 incorrect ratio" For a test today, I changed the gear to manual and it shifts perfect all the way upto gear se Learn about P0731 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal. What caused a 5th and 6th gear sync problem on a non chipped stock When diagnosing for an intermittent short or open, massage the wiring harness while watching the test equipment or diagnostic tool for a change. Learn about P0733 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal. I got a call from the shop today that the transmission had the codes P0729, P0735 and P2723. Three days ago I got an engine light that says 'service engine soon'. Mar 18, 2010 · I was havin a problem with my allison with it not shifting into drive or reverse some times and some times going in only to not shift. When it does this the two digit display on the shift pad indicates the right digit only as three and the check transmission light comes on. Fixed that buttoned Depending on the complexity of the vehicle, a P0729 trouble code could be caused by minor or major transmission problems. . Codes P0729 and P0735 indicate output speed sensor issues and incorrect gear ratios. Jan 25, 2024 · Explore the meaning of P0729 - Gear 6 Incorrect Ratio, its impact on your vehicle, and key steps for troubleshooting this transmission issue. Inspect the transmission output speed sensor for damage or poor connections. Learn about P0732 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal. The TCM then compares the known gear ratio to the calculated gear ratio for the current range. 8505, vkizz, c3rq, kbcic, 65p62, 0yd7, v2byd, qjkq7, xss14, fl9d,