2001 773G Seat Bar Sensor

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jajone13

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Joined
May 28, 2012
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Been troubleshooting and reading for months now. Replaced the switch, then went back for the bushing and new magnet. Intermittentingly would come on but never stay on longer than a few minutes. Can't even get it to stay on longer by taking it out of the seat bar and turning it manually. Went through the wiring harness and can't find any breaks or shorts. Even took the roof interior out to check the wiring. The 14 pin connector was quite dirty and greasy but I cleaned it up and no change. Since I've got all new parts and checked fuses and wiring, I'm now lost on where to go next. Any help would be very much appreciated. I'm now to the point of thinking the keep you safe "safety bar switch" keeps you safe by not allowing you to operate it at all. ????
 
Can anyone confirm how many volts should be going to the 2 wires that send voltage to the switch. I've read a couple places theirs was around 5 volts. Mine is only around 2.5 volts. Wondering if that could be my issue.
 
Can anyone confirm how many volts should be going to the 2 wires that send voltage to the switch. I've read a couple places theirs was around 5 volts. Mine is only around 2.5 volts. Wondering if that could be my issue.
I think it is a 5v system.
I guess it could be a bad wire, damaged internally.... You have changed the sender and magnet, not much else left.
Can you try and keep the sender out and plugged in, rotate the magnet till the light comes on then keep going till it goes off. Wind it back to the middle of those points and tape/cable tie it into place. See if it turns off again.
Just thinking that the locating pin is allowing the magnet to move and shut you out while operating
 
I think it is a 5v system.
I guess it could be a bad wire, damaged internally.... You have changed the sender and magnet, not much else left.
Can you try and keep the sender out and plugged in, rotate the magnet till the light comes on then keep going till it goes off. Wind it back to the middle of those points and tape/cable tie it into place. See if it turns off again.
Just thinking that the locating pin is allowing the magnet to move and shut you out while operating
It worked like that a few times but wouldn't stay on long. Then I couldn't ever get it to come back on at all. That's when I started checking the voltage. I talked to a service guy at bobcat and he said it sounded like 1 of 2 things.....the computer going bad or another sensor bad and stealing the voltage. He said the voltage had to be above 5 for the sensor. I told him that I got a low oil pressure code right after the lap bar stopped working completely and he thought that was suspicious. He suggested unhooking the sensors 1 at a time and check the voltage. I have now unhooked every single connector and sensor that I could locate with no luck. Any other ideas before I attempt to take it to the dealer? Is there a way for me to check voltage right at the computer before it splits out to the sensors?
 
It worked like that a few times but wouldn't stay on long. Then I couldn't ever get it to come back on at all. That's when I started checking the voltage. I talked to a service guy at bobcat and he said it sounded like 1 of 2 things.....the computer going bad or another sensor bad and stealing the voltage. He said the voltage had to be above 5 for the sensor. I told him that I got a low oil pressure code right after the lap bar stopped working completely and he thought that was suspicious. He suggested unhooking the sensors 1 at a time and check the voltage. I have now unhooked every single connector and sensor that I could locate with no luck. Any other ideas before I attempt to take it to the dealer? Is there a way for me to check voltage right at the computer before it splits out to the sensors?
You could check for 5v at the computer, the issue is finding what wire to check....
The G series machines have a lot of electronics, so it makes it harder to find the cause of the issue. I'd like to think it's not the computer, but it is possible.
Can you remove the connector at the computer and inspect it for corrosion? Even check the fuse box, the connectors can get corroded, it's a long shot but you never know.
 
You could check for 5v at the computer, the issue is finding what wire to check....
The G series machines have a lot of electronics, so it makes it harder to find the cause of the issue. I'd like to think it's not the computer, but it is possible.
Can you remove the connector at the computer and inspect it for corrosion? Even check the fuse box, the connectors can get corroded, it's a long shot but you never know.
I went back over the connectors and then went through all the fuses as well. Still no change. I'm going to try and use a wire from the battery and then reduce the voltage to a total around 5-6 volts just to see if the seat switch will work again. Thinking a trip to the dealership with it is in store soon unfortunately.
 
I went back over the connectors and then went through all the fuses as well. Still no change. I'm going to try and use a wire from the battery and then reduce the voltage to a total around 5-6 volts just to see if the seat switch will work again. Thinking a trip to the dealership with it is in store soon unfortunately.
Hopefully you can avoid the dealer trip, but i guess there comes a time that you really have no choice :(
 
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