missthe1122
Member
- Joined
- Feb 16, 2011
- Location
- Long Island, New York
I'm trying to get my ECC system to work, but I get the flashing AC button and no fan function. The diagnostics test issues error code 233 Fan motor excessive starting current. This is the only error code present. In the winter I rigged up a manual switch + resistor pack to run the fan for heat and defrost function. This worked just fine, providing 3 fan speeds no problem. Now I need AC, so I bought a new VDO blower fan in case the old fan was actually "drawing too much current" but I get the same error code. I also swapped out the ECC control unit with another known good one and I got the same 233 error code. What's strange is when I first installed the new fan, the fan switch ran the fan at all the speeds. I thought my problems were over, but it hasn't worked since the initial try, and as soon as I turn the switch from AUT or 0 position, the AC button begins to flash. FYI I can trigger the AC compressor clutch by jumping 12V to the output side of the AC pressure switch but there is no voltage on the other terminal of the AC pressure switch. I read the article about converting from MCC to ECC and I noticed "ECC is not only more sophisticated and advanced, it can also be controlled manually just like MCC if you don?t like what the computer is doing." How do you do make this happen? My thought is if I can't figure out the excessive starting voltage problem, I would try to re-wire the system to bypass the control unit and convert the system to MCC. Not sure what to do at this point. Any suggestions?