RE: Re: Electrical problem, '99 Plymouth Van

From: Bernd D. Ratsch (bernd@dodgetrucks.org)
Date: Tue Apr 17 2007 - 10:05:37 EDT


Turn Signals, HVAC, Power Windows, and Radio are all on seperate circuits.
What you'll need to do is reset the BCM since it's the primary controller
for all of those items. A simple battery disconnect should do the trick
(disconnect NEG terminal, turn key to START and hold for 15-20 seconds,
release key and then reconnect battery). If this doesn't work, you can
either have someone with a DRB reset the BCM or disconnect all of the BCM
connectors (under the dash - left side of inside firewall) and let it sit
for about an hour.

- Bernd

-----Original Message-----
From: jon@dakota-truck.net [mailto:jon@dakota-truck.net]
Sent: Tuesday, April 17, 2007 8:43 AM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: Re: DML: Re: Electrical problem, '99 Plymouth Van

clhyer@cox.net wrote:

> I know it's not a Dak, but please help if you can.

> Last night my wife came home and reported that most of her "electronics"
have gone out in her mini van. The items not working: turn signals, HVAC
blower motor, power windows, radio.

> What does work: brake lights, lights, power door locks, odometer.

> Not working correctly: The brake light and air bag light stays lit.

> I've not had a chance to look at it yet. Anyone had this problem in a
mopar before?

   I haven't had that particular problem before, but the first thing
I'd check is to verify that the battery is OK and check all of the
fuses and relays, both under the hood (in the Power Distribution
Center) and under the dash. I wouldn't expect that a bunch of fuses
have blown, but perhaps there is a major relay which feeds the PDC or
under-dash fuse box which has gone south on you. You should be able
to check the fuse box under the dash and the PDC under the hood with a
multimeter; check various fuse or relay sockets for power when the
ignition is on, and once you find no voltage where there should be
12v, just keep tracing it back towards the battery until you find the
spot where the power is being interrupted. I suspect you may find a
faulty relay of some type at that location.

--
                                          -Jon-

.- Jon Steiger -- jon@dakota-truck.net or jon@jonsteiger.com -. | '96 Kolb Firefly, '96 Suzuki Intruder, Miscellaneous Mopars | `-------------------------------- http://www.jonsteiger.com --'



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