jeffhoagland Posted June 9, 2019 Report Share Posted June 9, 2019 wife was driving to work, then car died, as if alternator was dead and battery drained - even did the flickery lights thing when batteries die. Towed home, pulled battery and alternator, tested at AutoZone. Both tested good (battery has 94% charge!). Reinstalled. checked for bad ground/loose wiring - no luck. voltmeter on Jumper terminals = 2.18 volts. Voltmeter on battery = 12.54 volts. pulled every fuse while monitoring voltage at jumper terminals but no change and all fuses tested good, none blown. I'm thinking BCM is bad, but I don't know how to verify this. Another post on here, someone said that it was their battery temp sensor, but don't know how to test that either. The car is a 2011 Dodge Journey Express 2.4l v4. I just replaced the starter and crankshaft position sensor about 1 month ago and it was fine ever since. I found out that the CPS was going bad when I got AutoZone to read the codes, but during that it also said there was something wrong with the BCM. Still, considering they are $250 I want to make sure I'm not wasting my money guessing at the actual problem. Any advice? Thanks Quote Link to comment Share on other sites More sharing options...
2late4u Posted June 9, 2019 Report Share Posted June 9, 2019 iv seen a car will start when in neutral but then when you put in drive it will die, so i believe it is the battery temp sensor, not surer if there is a way to test it.. good luck google on the battery temp sensor might be some info on you tube mechanical-idiot and jkeaton 2 Quote Link to comment Share on other sites More sharing options...
mechanical-idiot Posted June 9, 2019 Report Share Posted June 9, 2019 If the code for the BCM is coming up, it is likely trying to tell you that it should be replaced. Check a salvage yard for a used one. mechanical-idiot jkeaton 1 Quote Link to comment Share on other sites More sharing options...
OhareFred Posted June 10, 2019 Report Share Posted June 10, 2019 Wasn’t there an issue with corrosion on the back of the bcm? I thought someone posted a fix here, or maybe it was tube..... jkeaton 1 Quote Link to comment Share on other sites More sharing options...
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