Chicago & Detroit
Do you think the battery fan is necessary? I've read on the forum that they don't heat up as a result of charging, perhaps due to external temperature.
I live near Atlanta, GA, as does this car. It gets hot here. The fans probably don't do much as the batteries are such a huge heat-sink, but I think it would be irresponsible to NOT put the fans in. I am considering adding a 3rd battery fan to one of the corners of the IPU case to pull more air out of the case. It would be wired in parallel with the existing fans. But I haven't settled on how exactly to do that yet.Do you think the battery fan is necessary? I've read on the forum that they don't heat up as a result of charging, perhaps due to external temperature.
Yes I haveOK sounds like you do have a problem.
You have changed the BCM Fooler resistors R1,R2 to 1K?
They're connected via jumpers. I checked continuity, they look good.You still have pins 1 & 2 of J3 connected to pin 4? or via your switches?
If via switches, they must be closed for assist/regen to operate.
Yeah.The fact you don't have the RLF flag set when you have no regen indicates a strange problem.
I will get right on this.Try the attached BCM Interceptor code it has the voltage checks removed. Does it work?
Rename to hex.
Program the OBDIIC&C to display 'Mte' (mdm temperature) & 'Mdv' mdm voltage in the two parameter spaces that currently display ECM rubbish.
Send an OBDIIC&C pic with the car turned on sat idling.
Yes, that code made no difference. But I hadn't removed the link. But the programmer said verified when I checked. I'm using V3 and a Pic Kit3. The pick kit 2 never worked for me for OBDIIC&C so I got a 3 for that and that's what I'm using here as well.Lets try one thing at a time.
If that Interceptor test code makes no difference I will adjust the SOC and we can try that.
Out of interest when you remove the jumper wires connecting J3 pin 1 or pin 2 to pin 4 do the ALF/RLF flags change?
Turned car on.We could of course be stabbing in the dark with a later car and different BCM and MCM programming.
All my research is based on much earlier modules 2000,2001 etc.
You could try swapping them one at a time with the ones from your working car.
Please also let us know the full part numbers for the BCM and MCM.