This ones weird.....

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John Wiles

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RAM 2500 Diesel 2016 model tradesman. Running great. Get in and everything dashwise is dead. When door is open, odometer displays, but with key in, no EVIC no RADIO, no crank. OBD won't read because it thinks the key is not in the on position. New batteries, voltage 13.8. Checked fuses and relays. It's like there is no power to the BCM or PCM or whatever ?cm controls those items. Maybe there is a fuse or relay somewhere? Any help or ideas appreciated. Thanks
 

Elevated 2013

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Almost sounds like a dead BCM except for the fact that the odometer shows. I’d definitely check the grounds and if you have an alarm might want to check that as well. Possibly try to disable it. Does the key fob work to lock/unlock/arm/disarm the alarm. Almost like it could even be the ignition read the key wrong and disabled it like it thinks it’s being stolen.
 

Jimmy07

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RAM 2500 Diesel 2016 model tradesman. Running great. Get in and everything dashwise is dead. When door is open, odometer displays, but with key in, no EVIC no RADIO, no crank. OBD won't read because it thinks the key is not in the on position. New batteries, voltage 13.8. Checked fuses and relays. It's like there is no power to the BCM or PCM or whatever ?cm controls those items. Maybe there is a fuse or relay somewhere? Any help or ideas appreciated. Thanks
When you try the fob in the ignition, does a red dot light illuminate or flash in the lower right side of the cluster.
 
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John Wiles

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Yes the fob will lock unlock Did not see the red security light. Putting key in the ignition lights the instrument cluster. It seems to reset every 15 seconds. When the key is in the ignition and the door is open it does not chime. Do you think this could be the ignition node(module/switch)????
 

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It’s possible but that shouldn’t have anything to do with the EVIC or radio so I wouldn’t single that out. Seems like there’s a relay that isn’t powering everything else. Try disconnecting the battery positive and turn your headlights on and wait 10 minutes. Then go back out and reconnect the battery cable and then start the truck or if the symptoms change.
 
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John Wiles

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It’s possible but that shouldn’t have anything to do with the EVIC or radio so I wouldn’t single that out. Seems like there’s a relay that isn’t powering everything else. Try disconnecting the battery positive and turn your headlights on and wait 10 minutes. Then go back out and reconnect the battery cable and then start the truck or if the symptoms change.
. First thing I tried after checking the fuses was to remove ground for about an hour. I also moved relays from a working truck to just test. No luck. It’s like the key doesn’t turn anything on when in the run position
 

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Nothing in the acc position either I assume?? If not then the ignition module in the steering column would be a good first part to replace especially since the immobilized light didn’t come on.
 
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John Wiles

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Nothing in the acc position either I assume?? If not then the ignition module in the steering column would be a good first part to replace especially since the immobilized light didn’t come on.
No nothing in ACC either. Is replacing the wireless ignition node a dealer job?
 

Jimmy07

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No nothing in ACC either. Is replacing the wireless ignition node a dealer job?
You don’t have a wireless ignition node, it’s an rf hub, but yes, it would be a dealer job...IF that’s even your issue.
 

POINTMAN380

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Not for nothing but this same thing just happened last week to my son's Titan. The alternator was toast.
 

POINTMAN380

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Not for nothing but this same thing just happened last week to my son's Titan. The alternator was toast.
 

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John, I know you said that you tested the batteries and they read 13.6. Did you try having someone start your truck with you testing them?? The voltage will drop quickly if they’re bad. They look good now but turning the key is a totally different voltage. Try doing that and get back to us. I had a co worker just had this happen to him. If the battery drops even close to 10 volts when you try to start it they’re likely shot and you will possibly also need an alternator. The local parts store can check those for you as well but it’s best to test the batteries while they’re in the truck for starting issues.
 
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