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GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 353
Location: Southeast Michigan
The Body Controller is a separate computer from the engine contoller and that TSB will have no effect to the tune. We are going to take more measurements in the coming days and then look into the TSB stutus on our 06 vehicle. Minimizing the leakage rate will only extend battery life.
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TDIwyse

Joined: 01/10/2009 06:58:20
Messages: 54
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Thanks for the info. I checked my VIN earlier this week and the jeeps build date is about a week after they supposedly modified this at the factory. So my leakage issue is likely not due to the BCM. Looks like I'll have to start debugging by pulling fuses . . .

2006 Liberty Limited CRD
2004 Ram Quad Cab 4x4 Cummins
2001 VW Jetta TDI
1990 YJ with 2006 Cummins B3.3T
TDIwyse

Joined: 01/10/2009 06:58:20
Messages: 54
Offline
Tracked things down. After about 10 mins some additional modules shut themselves off. At this point the current dropped to about 140mA. This extra current was coming from the Mopar wiring harness I installed (shortly after purchase) to setup the ability to use an e-brake controller for towing a trailer (my liberty didn't come with the EVIC which required me to buy 2 mopar wiring harnesses to enable this ability). The wiring harness in the rear never stopped drawing current. I could drop the battery drain current to ~5 mA if I removed the fuse in the interior fuse box #3 which powers the cigarett lighter. One of the mopar harnesses plugs into this attachment which feeds power to the back harness. I put a switch inline with this connector which enables me to disconnect this path when I don't need the trailer brake enabled. Now the liberty only draws ~5mA after ~10 mins of shut down. One interesting point, anytime I open the door to the jeep the battery draw jumps to >4 amps for several minutes until certain electronic sections time out . . . so I'm not going to open my doors unless its really, really necessary . . . especially in the winter. I did get a new battery Friday. Much, much improved start times resulted from this purchase.

2006 Liberty Limited CRD
2004 Ram Quad Cab 4x4 Cummins
2001 VW Jetta TDI
1990 YJ with 2006 Cummins B3.3T
 
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