When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
had this problem arise a couple of months ago. Daytime lights would flicker, but mostly off, and only one high beam would work--just the low beams functioned properly. My mechanic did a band aid fix by wiring the two high beam circuits together, after which the driving lights, and high beams seemed to work fine, but we rarely used the highs. this last week, both the daytime lights and the highs are off completely, leaving just the lows.
What I've read online seems to point to various sources, but one common thread seems to indicate some major control "block" that may be out. My mechanic had previously said it would probably take awhile to locate the problem, but if it was this particular unit I've read about, it could be pricey.
Anyone experience similar problem?
Your mechanic likely fried the CTM by tying the two headlights together. They are controlled electronically and there is a driver circuit in the CTM that is controlled by the headlight switch. Each headlight has it's own driver. Tied together is it unlikely that it could drive two bulbs.
It was probably bad to begin with, only one bulb working.
A bad CTM is a common cause of headlight issues '01 and up.
Dealer spent 1 hour testing wiring, coming to conclusion that CTM is not putting out enough voltage to fire up the high beams, ergo, the module is toast. Problem isolated, but not solved. Apparently, Dodge stopped manufacturing these CTMs about 1 1/2 years ago, so now it is a treasure hunt online, trying to find a second-hand one.
Have not heard back from Dodge dealer yet about any "good news", but will give them till year-end. Failing that, has anyone had any experience bypassing the CTM? I hear that just wires directly from the lights to the dashboard switch will work, with a fuse and probably a relay in-between.
Central Timer Module and malfunctioning head lights: 2001 Dakota SLT
In my previous message I detailed the local Dodge dealer's findings, basically confirming that the problem originates with a bad CTM; however, they also informed me that Dodge no longer makes these units and that they would look online (EBay) for a used one.
I have given up waiting for them and did a bit of snooping myself. In the Ebay link I am including, there is one for sale in Canada that seems to be very similar to mine except that the last letter in the DaimlerChrysler # and the Motorola # is an "L" while mine ends with a "J" (see attached photo of my CTM).
Are these compatible, or do the difference in letters suggest different features?
Also, I heard from someone that these CTMs need to be "programmed" for the vehicle, like a new set of keys, or is that also false information?
The last letter being different merely implies it's a later revision than what you have. I don't know if it needs to be programmed to the vehicle, I don't *think* so, but, not 100% sure.
below is a link that states that most CTM s MUST be reprogrammed, along with the keys (about the 4th paragraph). Pain in the "seating department" either way.
11-07-2018, 02:18 AM
daytime and high beam lights not working
