I have a 2012 GEM E6 and I’m at my wits end with it.
It stopped working with an error code 21 about 3 months ago and the dealer said it was the accelerator. I replaced that and it didn’t fix the problem. They then said it was the controller so I had it sent to Ride-4-Fun and they tested (it was bad) and they rebuilt it.
I plug it back in and it’s still not working. I’m not getting any error codes but it won’t engage in drive/reverse. The red parking brake light is on and won’t come off (of course even after I disengage the parking brake). I do have the manual and it says to test the brake light circuits. I don’t really know what I’m looking at to test the circuits or finding the relays.
The alarm will go off if I turn the key off and disengage the parking break so I know the switch to the parking break works. Is there a way to “jump” the circuit and override the switch? I’ve spent so much money trying to get this fixed and just want to know if that’s the problem now.
The brake lights are activated by a pressure switch on the brake master cylinder. You can test it for continuity when pressing the brake pedal. I wouldn’t think it would have anything to do with the parking brake side of things but wouldn’t hurt to check it. The pressure switch failed in an open state in my 2013 E6 and had to be replaced.
I know this sounds crazy, but pull and check all your 12v fuses. I was have similar issues (defiantly the issue with the PB light not going out and I seem to remember -21 as well) when I was testing some T4 controllers. Turns out that during some other things I was doing I removed some fuses, ones that have nothing that would control error codes or PB issues. I checked and replaced all the fuses and bingo the controller started working again.
It is probably a shot in the dark but who knows???
Okay - I checked all fuses and they were all good. I also checked the volts on pins 1,2 and 7 and they were all getting no volts. I double checked on B+ post and was getting 76v reading from there so I know my volt meter isn’t bad.
I tried both my old and new throttle and am getting the same 21 error code.