Bandit95 15 Posted February 19, 2021 Any other takers. Might work on it tonight Share this post Link to post Share on other sites
AKATV 822 Posted February 20, 2021 Let me know what you have or have not figured out I have an 03 450ES with the fenders off that I can easily match up any readings that you need to confirm Everything on mine is functioning properly 1 Share this post Link to post Share on other sites
Bandit95 15 Posted February 21, 2021 Might be late now but I'm about to work on it if you're around Share this post Link to post Share on other sites
Bandit95 15 Posted February 21, 2021 (edited) So here's what I've done, that I remember to date Put known working shifter controls in. Quad had controls taken apart and missing pieces to find shifting issue. I verified that these new to me controls do work, and have continuity when buttons depressed. Also jumped the pinouts in the connector to bypass the controls, still nothing. Black orange to either wire Followed diag for wiring in honda manual. Checked most if not all wires that work with the es system. Only wire I found that wasn't right was the grey black wire going to CM. No continuity with ground with the plug connected, key on, and in nuetral Speed sensor tested. Has correct input voltage. And reference wire outputs 5v and speed is recorded on CM Replaced rectifier with known good rectifier Replaced angle sensor with new oem honda sensor. Original tested good ES shift motor spins with 12v, and has been cleaned inside no damage All connectors in harness are dry, with absolutely no dirt inside. Also checked over the whole harness for damage, or wire pinches Swapped ecus. One ecu is oem original. Another is Rocky mountain new oem. Both 771 codes. The old one has a steady neutral light. The new one has a flashing constantly neutral light. No codes. And no codes are retrievable. The time on the CM resets after about a day even though the battery is being maintained at 13v+ constantly Edit: I found this to be wrong. I unplugged the CM about every day because I work on it every day. Killing the saved time. Swapped batteries with known good battery Tested all the fuses. They all tested good but I replaced them all anyways. Gear position sensor records every gear on the CM and tests out good as well Checked and verified grounds and battery connections Voltage to ecu is battery standard voltage. The only things that stand out to me is that the grey black in the CM doesn't have continuity to ground. They both have to do with the CM and I have not been able to swap that out yet, being I don't have one available. Akatv you mentioned these two things before. Edit. Grounded the grey black wire just now and I hear a click from the ecu and the gear indicator goes blank. So I'm assuming now that I have a bad CM Edited February 21, 2021 by Bandit95 Share this post Link to post Share on other sites
AKATV 822 Posted February 21, 2021 Speedometer will play no part of a no shift situation I went out and removed my speedometer from my 03 Foreman 450ES and it still shifts up and down As previously mentioned- the speedometer display is just an output device for the speed sensor to display MPH, the CPU to display codes and the gear switch to display gear positions as well as all associated LED lights for Neutral, 4WD etc... I would say with all your troubleshooting so far that a bad ECU causing your no shift issue Now as far as time resetting you could have a bad battery or a bad component in your speedometer Share this post Link to post Share on other sites
Bandit95 15 Posted February 21, 2021 I will see if I can find an ecu 1 Share this post Link to post Share on other sites
AKATV 822 Posted February 21, 2021 Either way let us know what you find out, you have done some good troubleshooting so far and I think you are on top of it I see you updated the time reset issue was due to unplugging the speedometer daily while working so- thats good Was the ECU you got from Rocky Mountain a new Honda Part? Share this post Link to post Share on other sites
Bandit95 15 Posted February 21, 2021 The brand was elysis or something like that. And Rocky mountain site shows that as honda manufactured. Either way I'm going to try and find an ecu cause I don't trust either of them. And if the ecu still don't work then I know it's still a wiring gremlin 1 Share this post Link to post Share on other sites
Bandit95 15 Posted February 25, 2021 Still picking away at this thing Share this post Link to post Share on other sites
Bandit95 15 Posted February 25, 2021 On 2/20/2021 at 10:28 PM, Bandit95 said: So here's what I've done, that I remember to date Put known working shifter controls in. Quad had controls taken apart and missing pieces to find shifting issue. I verified that these new to me controls do work, and have continuity when buttons depressed. Also jumped the pinouts in the connector to bypass the controls, still nothing. Black orange to either wire Followed diag for wiring in honda manual. Checked most if not all wires that work with the es system. Only wire I found that wasn't right was the grey black wire going to CM. No continuity with ground with the plug connected, key on, and in nuetral Speed sensor tested. Has correct input voltage. And reference wire outputs 5v and speed is recorded on CM Replaced rectifier with known good rectifier Replaced angle sensor with new oem honda sensor. Original tested good ES shift motor spins with 12v, and has been cleaned inside no damage All connectors in harness are dry, with absolutely no dirt inside. Also checked over the whole harness for damage, or wire pinches Swapped ecus. One ecu is oem original. Another is Rocky mountain new oem. Both 771 codes. The old one has a steady neutral light. The new one has a flashing constantly neutral light. No codes. And no codes are retrievable. The time on the CM resets after about a day even though the battery is being maintained at 13v+ constantly Edit: I found this to be wrong. I unplugged the CM about every day because I work on it every day. Killing the saved time. Swapped batteries with known good battery Tested all the fuses. They all tested good but I replaced them all anyways. Gear position sensor records every gear on the CM and tests out good as well Checked and verified grounds and battery connections Voltage to ecu is battery standard voltage. The only things that stand out to me is that the grey black in the CM doesn't have continuity to ground. They both have to do with the CM and I have not been able to swap that out yet, being I don't have one available. Akatv you mentioned these two things before. Edit. Grounded the grey black wire just now and I hear a click from the ecu and the gear indicator goes blank. So I'm assuming now that I have a bad CM There is 5v voltage to and from handlebar up and down switches Cleaned ground on frame Changed connections at battery (for no reason just hopes and dreams) Bought a ecu on ebay, waiting on that Jumped the pins from the ecu 5 wire plug and the motor did shift gears Share this post Link to post Share on other sites
Bandit95 15 Posted March 2, 2021 So bought a used ecu on ebay. I chose used cause it would be a known good unit, and it was cheaper. Mostly wanted for the known good part. The oem one must have been shot. And the new oem one must have been shot, out of the box. This used ecu I got, not only do I hear the relay click with key on, it also shifts. The battery might be weak. But I get a shift. With niether previous ecus did I get a relay click from the ecu with key on. Getting there I suppose 2 Share this post Link to post Share on other sites
AKATV 822 Posted March 2, 2021 Sounds like you are getting it all sorted out Is everything working as its supposed to for you now? Also are you able to return the new ECU to Rocky Mountain as it did not work out of the box? Share this post Link to post Share on other sites
Bandit95 15 Posted March 2, 2021 Well I bought the bike apart from a friend. Came with both ecus. I was told one is new. One is oe. The new one is just a goner I suppose. These used one I have is the only good one. So now I'm just going to put it together and get it in good shape. And ride it. It's got 1344 miles on the clock and 288 hours 2 Share this post Link to post Share on other sites
retro 4,048 Posted March 2, 2021 Thanks for sharing how you fixed it. 6 minutes ago, Bandit95 said: So now I'm just going to put it together and get it in good shape. And ride it. It's got 1344 miles on the clock and 288 hours Not so fast.... ya need to spend an afternoon prepping the ES 'fore you dare to ride it. Else you'll have your wallet bleeding money again soon. 2 Share this post Link to post Share on other sites
Bandit95 15 Posted March 3, 2021 Still gotta bleed the brakes and fix other small things. Got all the plastics on today 1 Share this post Link to post Share on other sites
Fishfiles 20,145 Posted March 3, 2021 @AKATV I see there different part numbers for speedometers on the 450 ES , 98-2000 NLA , 2001 NLA and 2002 -2004 which is still available for $401 ----question is , are they different units or all the same , wonder why only one still available --- Share this post Link to post Share on other sites
Bandit95 15 Posted March 3, 2021 The later model (02 up) has selectable 4wd which also adds a light in the CM. Akatv would be able to elaborate more than I ever could 1 Share this post Link to post Share on other sites
Fishfiles 20,145 Posted March 3, 2021 50 minutes ago, Bandit95 said: The later model (02 up) has selectable 4wd which also adds a light in the CM. Akatv would be able to elaborate more than I ever could True , that 2nd gen (2002-2004) selectable 4wd meter is the one that is still available . but wonder why is a 2001 showing as a stand along year Share this post Link to post Share on other sites
AKATV 822 Posted March 3, 2021 (edited) 6 hours ago, Fishfiles said: @AKATV I see there different part numbers for speedometers on the 450 ES , 98-2000 NLA , 2001 NLA and 2002 -2004 which is still available for $401 ----question is , are they different units or all the same , wonder why only one still available --- Hi Fish The differences on these is mostly internal- 98-2000 450ES uses a big square LED lighting panel behind the LCD display and black bezel attaches with twist tabs behind circuit card 2001 450ES was first year ( and the last year for the full-time 4WD) to use 2 rows of 4 LEDs (tweezers pointing pic) on left and right side of circuit board This change gave it he standalone part number for that year. Also, this year and thereafter the black bezel attaches to the circuit board with screws 2002-2004 also uses the newer rows of LED backlighting along with an LED for 4WD on the circuit card and addition of indicator on the outer speedometer casing + harness change Edited March 3, 2021 by AKATV 4 Share this post Link to post Share on other sites
Fishfiles 20,145 Posted March 3, 2021 @AKATV your really up on it , so can the 2001 and the 98-2000 be switched around and work ? Share this post Link to post Share on other sites
AKATV 822 Posted March 3, 2021 Harness and inputs are all the same The board has its own led driver circuit so should not be a problem at all 3 Share this post Link to post Share on other sites
Bandit95 15 Posted March 3, 2021 I've read alot his posts. He's a sorcerer with these things lol 5 Share this post Link to post Share on other sites