stevelauer

Tried to get an answer on another site, but no answer.
LH low beam headlight will not work - changed H13 bulb and still no luck; no P code indicated; any ideas?

'06 Mega 3500 5.9

Tacomaman87

fuse, wiring. bad ground. switch. bad new bulb. are you getting voltage to the connector? voltage to the fuse?

stevelauer

Good point Tacoma,

I was so confident that I changed out a good bulb that I did not check it until later and it did have an open, even though it did not look that way. I will check the new bulb for continuity and the circuit for voltage - fuse has continuity and is not the problem. My concern is that I have to replace some expensive module just to regain my low beam.

Thanks for the help.

BigDiesels

I've had the same problem before... I bet you do have a code, but it is not a P code to display on odometer. I used the Autoenginuity scanner to clear it, and my lights came back on. I found that there wasn't much we could do with that system, as it is all in the control module.

stevelauer

Thanks BigD, I was looking for such an answer. Now I can go to Dodge without worry about paying mega$.

Totallyrad

Steve, most of the chain stores like Advance Auto, Autozone, etc. will let you borrow a scanner for free to look for codes and clear them. You may also be able to do it with a Smarty if you know someone in your area that has one.

stevelauer

Thanks, Rick -I will try Advantage. - Make that Advance Auto. I really have to confess - I don't know squat about Autoenginuity scanners or any other analytical tools. Do you mean to say that I can buy software/hardware that I can use on my laptop that can not only tell me that what's wrong but allow me to reset it? This kinda' begs the question - what made it trip (?) or malfunction in the 1st place? I visited the Autoenginuity site and see a price of $249 - not unreasonable. Will purchase of this allow me to trouble-shoot and reset such problems?
Regards,
Steve

stevelauer

Problem was indicated by the corresponding B code and reset. All is well - thanks.

Totallyrad

Steve, I don't know anything about their product so I really can't answer. I'd stay with the free stuff for now until you get more comfortable with your truck. Glad you got it fixed though.

BigDiesels

Steve, I bought the AutoEnginuity connector and software from the website. The basic pack only gives generic stuff, like any scanner off the shelf would. I also bought the Dodge/Chrysler option pack, because I have a few other vehicles in the family. I don't live in a city where I could 'borrow' a scanner, so resetting the check engine light a few times has already paid for what I bought.

In addition to checking and resetting codes, there are MANY (almost 700 on my 06 Cummins) sensors you can monitor in real time and even datalog and export to excel. The tests you can do vary from model to model, but on mine, I can do a cylinder contribution test, and my favorite, a cylinder cutout test, where you electronically turn off each cylinder to see if one is dead, etc. You can also adjust your idle speed and enable the cruise control ' fast idle'

I'm only a shadetree mechanic, but for me the $500 was worth it.

stevelauer

Big D,

This has been a real education on how OBD tools work. I am confident that the dealer would have tried to sell me an entire TIPM judging by past experience. I took your input to my non-dealer mech and he detected and reset the fault on the module. I was on an OBD site called the OBD Clearing House that listed many scanners with various options and prices but I don't think buying one would be justified for me.

Thanks for the help.