Question about 2003 Dodge Caravan
I can relate ... been without reverse lights for a while.
Here's my understanding of the communications that take place in this process: when you put the vehicle in reverse, there is a backup light switch on the transmission that sends a signal to the Transmission Control Module (TCM), that then forwards that information to the BCM, and the BCM sends the signal to the backup lights.
Have had different diagnoses for the problem ranging from BCM (body control module), to FCM (front control module), to the standard bulb, wiring, etc. Dealer wanted to do a $1000+ job thinking it could be the BCM. Being cheap decided to do some troubleshooting on my own ... with help from another site where I contacted a Dodge Expert.
In my case, we tested wiring, and found there was a fault in the wire ... replaced with a new wire.
So sending 12V to from the battery to the lights made the reverse lights come on -- so wiring and bulbs good.
Didn't fully fix the issue ... tested the pin from the BCM that carrys the signal to the backup lights to come on and found that the BCM is NOT sending out the signal. Looks like it is a BCM issue but want to check to make sure the BCM is getting the right input signal. So that is now where my testing will go.
Hope that helps.
Posted on Oct 06, 2008
I think they work off the transmission as the dealer fixed mywife's last year and it was covered unde rthe powertrain warranty. Unfortunately, they are not working again this year at inspection time...dealer said that it may be the body control module going bad. I disconnected the neagative battery terminal for 20 minutes to reset it and see if the reverse lights came on, but no luck...you may try it though. I'm still stuck without reverse lights...let me know if you find anything email@example.com
Posted on Aug 31, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 18, 2015 | 1998 Pontiac Grand Prix
Mar 17, 2013 | 1991 Ford F150
Aug 15, 2012 | 2002 GMC Yukon XL
May 06, 2011 | Plymouth Voyager Cars & Trucks
Jan 27, 2011 | 1995 Lincoln Town Car
Aug 13, 2010 | 1988 Ford F 250
Aug 03, 2010 | Ford F-100 Cars & Trucks
Sep 19, 2009 | 1996 Geo Metro
Nov 13, 2008 | 2002 Ford Explorer
384 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: