My case 580sm keeps alarming a throttle sensitivity code that shuts down the foot throttle, I can sometimes turn off the engine and restart to clear it but it is getting worse. Any help with fixing this problem would be great.
Mightymite007, Welcome to HEF ! In order to help you, it would be good if you could provide some more specific details as there are several potential things that could fit what you describe. Specifically, take 5 minutes and get the following information from the instrument cluster menus. If you are not familiar with the menus, let us know and we can walk you through it. What specific fault code(s) are you getting? There are over 10 foot throttle codes possible, so knowing the specific issue/code is crucial to solving your problem. Does the fault occur when you start to press on the foot pedal, or closer to full throttle? There is an idle validation circuit in the foot throttle, so it may be useful to know “when” in the process of moving the foot throttle, the fault occurs. What version of software is in your instrument cluster that the foot throttle is connected to? Put the instrument cluster in “digital” mode and get the following “Foot Out” voltage (normally around 5V) “Foot Sig” voltage when pedal not pressed and also when fully pressed. (typically in the .5V..4.5V range depending on throttle position) “Foot Pct” percentage when pedal is not pressed and also when fully pressed. (should go 0%..100% depending on throttle position) Last but not least, check the foot throttle sensor for any damage or wiring damage. As the foot throttle is by definition positioned down low by the floor, make sure something like a tool box, lunch box, etc. has not damaged it. If you can provide some specific details, typically there are some very knowledgeable people on this forum that can assist further.
DAMN.. :notworthy I WANT FPGM ON MY TEAM...!!!!
Thanks for the reply. the alarm comes on randomly, while working or at idle. I don't know how to get the instrument cluster to digital. the sensor seems to be ok unless there is an internal problem with it I will get back to you with soft ware and codes thanks
Get the codes and info and we will go from there. If there are a lot of codes, only the most recent ones that are close to the current hour meter value are probably relevant and should be in the first few positions. Throttle codes are typically in the 1xxx series. To get the instrument cluster display into digital mode there are a couple of different ways. You must start with the key “off”. The easiest way is to press and hold “one” of the following switches, then turn on the key switch at same time. (no need to start the engine, just turn the key on). Then release the switch and the instrument cluster will start up. You can press any of the following switches : down arrow, up arrow, display(diamond), or enter switch. This will cause the self test to run on the cluster which takes about a minute, then you will end up in digital display mode. Once in digital mode, use the up or down arrows and scroll until you come to the relevant screens like shown below. To exit digital mode, simply key off. And to Pumpguy, Thanks! :salute I would be honored join your team anytime! I only wish I had a fraction of your knowledge on pumps and fuel systems.
I think this is what you need. soft ware pn-NA ID-1096 Ver-1.8.0.0 codes1012-latest 1004 1010 1015 1030 Code 1012 showed 29 occurances and while I was in digital the alarm came on and then showed 31 occurances. So this might be the one. Foot Out 4.91 Foot Sig 0.53 Foot Pct 0.0 when the alarm came on the Foot Pct showed err. I hope this helps Thank You Wade
Ok, let me provide you some feedback information on the codes provided, but I need to also ask for few clarifications on your info. Codes: 1012 – Foot throttle sensor voltage below expected range. This could cause the issue you describe. 1004 – hydraulic filter blockage. This is not related to the throttle and is typically either cold oil or a filter issue. 1010 – IVS (Idle Validation Switch) signal not changing state as expected. This could cause the issue you describe. For reference, the throttle sensor has signals for both position and IVS. 1015 – Battery voltage is too low. Unless your voltage is really low, this should not directly cause the throttle issue, but may be indirectly involved. 1030 – Foot throttle sensor is shorted to ground. (damaged wiring/sensor or faulty sensor) This could cause the issue you describe. Therefore, we have 2-3 possible fault codes that could affect your foot throttle. (some of them may be activating concurrently) To narrow this down, I need to ask for a few clarifications on your information. I am assuming the list of codes is provided in the order displayed, page number, by page number. Ie page 1 is 1012, page 2 is 1004, page 3 is 1010, etc. If this is not correct, please advise. We need to understand how historic the 1010, 1015, and 1030 codes are. Can you please look at the last line (hour of occurrence) on each fault code page/screen and advise how much “difference” there is between the current hour meter and the hour meter recorded for each fault? (for example we need to understand if the 1010 fault is 0 hours old, or 1000 hours old, etc.) Can you go into digital mode and provide the same foot throttle values when the foot throttle is fully depressed? Ie only the digital values with the foot throttle in the non depressed 0% position were provided. If the 1015 low voltage fault has occurred very recently based on hour meter, then while in digital mode, scroll to the “Voltage” value and get the system voltage with the engine off. (should be around 13.8v) We are getting closer to resolving your issue, but need some clarifications to make progress.
Thanks .. BUT.. anybody that reads THIS SHi*.. HAS TO be impressed.. good job..:usa
Pumpguy, I have to confess that some pump repairs and settings might as well be in Greek for me. Hats off to you for being able to deal with it.:drinkup It is all relative to what you know and are comfortable with. Between the government EPA tier 3,4 regulations and people’s expectations for everything from iPhone docs to laser leveling, electronics are everywhere. Modern vehicles (cars, trucks, TLBs, etc.) have 1000s of fault codes to go along with the multiple electronic controllers and sensors. You either learn to deal with the SHI* or pay someone to do it for you.
Current hours on machine are 3536.0 The codes in order are: 1012 is first at 3536.0 and 33 times 1010 is second at 3534.0 and 1 time 1004 is third at 3533.0 and 250 times I agree not related to problem 1030 is fourth at 3533.6 and 2 times 1015 is fifth at 3454.9 and 6 times So this one is quite old Voltage is : 12.1 with engine off 14.4 with engine running Foot throttle : No throttle - foot out 4.91, foot sig 0.53 Full throttle - foot out 4.98, foot sig 4.15 Also note the alarm came on again while in digital and again later at engine idle.
Based on the voltages and the faults, it appears you are getting an intermittent voltage drop between the foot throttle sensor and the instrument cluster controller to cause the 1012 faults. Sometimes the intermittent voltage drop is getting big enough to appear as an open circuit or short to ground condition causing the 1030. The 1010 idle validation fault could also occur if the throttle signal is dropping momentarily and not in parallel to the idle validation switch (IVS) signal. Basically, the instrument cluster controller appears to be working correctly and disallowing the foot throttle when its outputs do not register correctly. As there no mention of hand throttle issues, this is another indication that the instrument cluster controller is working as expected. So the potential causes are : 1. Faulty/damaged wiring from the foot throttle sensor in the front console, routing to the instrument cluster controller on the side console. I have not looked at a M series 3 for some time, but I seem to recall a bulkhead connector that if not seated properly could cause issues. I would suggest you open up each connector between foot throttle and the instrument cluster and inspect & clean as necessary. Also make sure the connector’s terminal pins are dry and not pushed back up in the connector housing. 2. Throttle sensor could have some damage and then moisture intrusion/corrosion occurred to cause the intermittent voltage drop. If this has happened, the only option is to replace the sensor. One other note, the throttle sensor has its connector facing up, which is not a problem, but make sure there is a drip loop formed in the harness routing above the sensor to prevent any water running straight down the harness and into the sensor from things like pressure washing or condensation. I would check the wiring first before replacing the throttle sensor. However, for reference based on a quick internet search, I believe the sensor replacement kit part number is 87497572 @ $140 US. If you have to replace the sensor it is straight forward with a couple of screws and no recalibration is required. 3. You could have a bad instrument cluster controller, but that is unlikely. One other thing. Your controller’s software is out of date. The last software I seen for M series was 1.9.0.3 and did seem to have improvements over your 1.8.0.0. So you might want to have the dealer install that the next time he has a truck in your area or you have your machine at the dealership. After the dealer gets his computer booted, it only takes the dealer technician about 5 minutes to program the software, so it should not be a big deal for him to do for you.
Thank you for all the trouble shooting, now I have a great opportunity to solve this problem.
I see this is an old post but mine is doing the exact same thing. Also shows foot out 4.98 and foot sig 0 even with the throttle depressed. Was there a problem found somewhere?