Tactical Bacon Posted July 7, 2013 Share Posted July 7, 2013 So my wonderful new off/road warrior is a 1991 Jeep Comanche Pioneer. Short bed, 4.0 HO, AX15 and 2wd (with 4x4 stickers on the side? I don't get that one). It has about 206k miles and is in pretty good shape overall. So, I already know I need a DRB 2 to reset the maintenance req'd light, I need to replace my TPS (unless there's some common problem with them I am not aware of), and a few other things. What I need to know right now is if there's a way to clear CEL codes without a scanner, cycling the key 50 times, etc., and more importantly, if the headlights can be installed upside down. I was driving home tonight and couldn't see my lights on the road and when I got home, I realized my low beams were shining halfway up the side of the house and my high beams were aimed lower to the ground. So, I'm postulating that they might have been installed upside down deliberately because of the brushguard installed on it. The guard intercepts the top and bottom edges of the lights and blocks them somewhat. Does anyone have insight in regards to this? Link to comment Share on other sites More sharing options...
Eagle Posted July 7, 2013 Share Posted July 7, 2013 Look at the headlight lenses. There are codes molded into the glass. If you can read the codes, the lamps are not upside down.. Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 7, 2013 Share Posted July 7, 2013 So my wonderful new off/road warrior is a 1991 Jeep Comanche Pioneer. Short bed, 4.0 HO, AX15 and 2wd (with 4x4 stickers on the side? I don't get that one). It has about 206k miles and is in pretty good shape overall. So, I already know I need a DRB 2 to reset the maintenance req'd light, I need to replace my TPS (unless there's some common problem with them I am not aware of), and a few other things. What I need to know right now is if there's a way to clear CEL codes without a scanner, cycling the key 50 times, etc., and more importantly, if the headlights can be installed upside down. I was driving home tonight and couldn't see my lights on the road and when I got home, I realized my low beams were shining halfway up the side of the house and my high beams were aimed lower to the ground. So, I'm postulating that they might have been installed upside down deliberately because of the brushguard installed on it. The guard intercepts the top and bottom edges of the lights and blocks them somewhat. Does anyone have insight in regards to this? The MAINT REQ lamp comes on at around 85K miles as a reminder to change your O2 sensor. That's it's only purpose in life AFAIK. The dealer can reset it with a DRB2, but I simply removed the bulb. It's cheaper. The CHECK ENG fault codes will not extinguish unless the fault is repaired after 50 key recycles or by leaving your battery disconnected overnight (sometimes). The dealer can also clear them with the DBR2, but they will come right back on if the fault(s) remains. For a list of the codes go here: http://comancheclub.com/topic/28111-reading-obdi-91-and-92-mj-fault-codes/ Link to comment Share on other sites More sharing options...
Tactical Bacon Posted July 8, 2013 Author Share Posted July 8, 2013 Eagle, I knew they were upside down. I was wondering if there would be a reason for them to be installed upside down deliberately. Also, your method is flawed; I can read upside down and/or backwards. hornbrod, I'm not the average knuckle-dragger and actually read the owner's manual so I know what it's for and such. I was just wondering if anyone knew a trick for turning it off aside from bulb removal. I like to leave bulbs in their place. One of my quirks. In regards to the fault codes, I didn't want to disconnect the battery and set off [another] Code 12. The Code 24 and occasional shudder when applying the accelerator, even after cleaning the connection, lets me know I need to replace the TPS. And this isn't my first rodeo. I know that if you clear the codes and the problem remains, they will come back. I'm not trying to be a smartass or snarky to anyone, I'm just smarter than your average bear. Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 8, 2013 Share Posted July 8, 2013 Happy you have such a high opinion of yourself. In that case solve your own problems w/o bothering us here on this forum. Take a hike. :waving: Link to comment Share on other sites More sharing options...
Tactical Bacon Posted July 8, 2013 Author Share Posted July 8, 2013 And hence the issues of text rear their ugly heads. I try to be polite and frank with you and you get a major case of recto-cranial insertion because I don't bend over backwards to kiss your feet in thanks for the wonderful advice you gave me when I've read it in several other websites. But don't get me wrong, I genuinely appreciate that you put forth the effort and the intention there-in. I've been on several forums where a simple question goes unanswered and ignored for days on end while receiving hundreds of views. Link to comment Share on other sites More sharing options...
ParadiseMJ Posted July 8, 2013 Share Posted July 8, 2013 1.) The headlights (stock ones anyway) have the word TOP embossed on the top. All the lettering on the bulb should be oriented thusly. The only reason that they would be installed upside down is the PO did not know what he was doing...or can't read (not even upside down or backwards). Top is Top 2.) The maintenance required module can be replaced without removing the bulb if you truly want to keep your truck "stock". You should remove the bulb only if you think you can remember to replace you O2 sensor every 85K or so. 3.) With your "smarter than average" attitude, I'm sure your posts will continue to be unanswered and ignored for days on end. Jumping back bad on well meaning advice after 3 whole posts is not going to win you any friends here. Link to comment Share on other sites More sharing options...
87Warrior Posted July 8, 2013 Share Posted July 8, 2013 Purchase a 1991 FSM (reproductions in paper/CD on eBay) and read it cover to cover. All of your questions will be answered the way Mopar wants them to be answered. This way we can't complicate yours threads with proven tips, tricks and techniques that are not factory certified to accomplish a simple fix or repair. Perhaps your truck was a 2wd, then converted to 4wd, then put back to 2wd. Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 8, 2013 Share Posted July 8, 2013 2.) The maintenance required module can be replaced without removing the bulb if you truly want to keep your truck "stock". No module in the HOs Charlie. The timer is controlled by the ECU. :thumbsup: Of course, I'm sure the OP knows this......... Link to comment Share on other sites More sharing options...
ParadiseMJ Posted July 8, 2013 Share Posted July 8, 2013 Renix head here... ...I guess I'm not as smart as the average bear...just call me Boo-Boo. Other than that I'm a regular walking Wikipedia and I know all the words to the big 1960's Hollywood musical show tunes. Link to comment Share on other sites More sharing options...
dave92cherokee Posted July 8, 2013 Share Posted July 8, 2013 I don't get the whole point of this post. If the OP already knows the headlights are upside down then turn them around, he already knows he has to replace the TPS so replace it already, he already knows he needs to reset the ecu to turn off the maint required light so replace the O2 sensors and have it done. There are 4wd badges on it because it likely started life as a 4wd then trans problems happened and swapped in a 2wd trans due to availability to get it running again. Seems like all the answers to this post's questions were already answered before even clicking on new topic. Link to comment Share on other sites More sharing options...
Pete M Posted July 8, 2013 Share Posted July 8, 2013 everybody take a couple deep breaths... the OP was introducing himself and his truck and then his questions were whether there was an alternative to using the scanner for codes and then if anyone would have any idea why the headlights were installed upside down. also, welcome to the club :waving: Link to comment Share on other sites More sharing options...
AMCJeepMJ Posted July 8, 2013 Share Posted July 8, 2013 Last thing I want to do is to throw another gallon of gas on the fire, but wouldn't headlights which are installed upside down blind oncoming traffic? Link to comment Share on other sites More sharing options...
Eagle Posted July 8, 2013 Share Posted July 8, 2013 And hence the issues of text rear their ugly heads. I try to be polite and frank with you and you get a major case of recto-cranial insertion because I don't bend over backwards to kiss your feet in thanks for the wonderful advice you gave me when I've read it in several other websites. Your post (#4 in the thread) was hardly polite, to either me or to Hornbrod. If that's your idea of "polite," I don't want to hang with your group of friends. Link to comment Share on other sites More sharing options...
Eagle Posted July 8, 2013 Share Posted July 8, 2013 the OP was introducing himself and his truck and then his questions were whether there was an alternative to using the scanner for codes and then if anyone would have any idea why the headlights were installed upside down. Pete, he didn't ask why the headlights were upside down. Whatever he intended to ask, what he did ask was IF they are upside down. So, I'm postulating that they might have been installed upside down ...] Link to comment Share on other sites More sharing options...
Tactical Bacon Posted July 9, 2013 Author Share Posted July 9, 2013 everybody take a couple deep breaths... the OP was introducing himself and his truck and then his questions were whether there was an alternative to using the scanner for codes and then if anyone would have any idea why the headlights were installed upside down. also, welcome to the club :waving: Thanks for the welcome! Don't worry, I'll do something to offend or piss you off, too, eventually. :thumbsup: haha Last thing I want to do is to throw another gallon of gas on the fire, but wouldn't headlights which are installed upside down blind oncoming traffic? I was worried about that, too. I was afraid the headlight switch was bad and had high beams and low beams reversed. 2.) The maintenance required module can be replaced without removing the bulb if you truly want to keep your truck "stock". No module in the HOs Charlie. The timer is controlled by the ECU. :thumbsup: Of course, I'm sure the OP knows this......... Yup. I researched the Maint Req'd light before asking about it. Purchase a 1991 FSM (reproductions in paper/CD on eBay) and read it cover to cover. All of your questions will be answered the way Mopar wants them to be answered. This way we can't complicate yours threads with proven tips, tricks and techniques that are not factory certified to accomplish a simple fix or repair. Perhaps your truck was a 2wd, then converted to 4wd, then put back to 2wd. I do want tips and tricks. I was just asking if there were any aside from the few I was able to find. I would also love to be able to afford an FSM. And that makes sense. the OP was introducing himself and his truck and then his questions were whether there was an alternative to using the scanner for codes and then if anyone would have any idea why the headlights were installed upside down. Pete, he didn't ask why the headlights were upside down. Whatever he intended to ask, what he did ask was IF they are upside down. >So, I'm postulating that they might have been installed upside down ...] Context, please. "So, I'm postulating that they might have been installed upside down deliberately because of the brushguard installed on it." I then asked if someone had insights regarding a deliberate installation of headlights in the upside down position. I should have omitted the sentence asking if they could be installed upside down because all that did was make my post more confusing. And hence the issues of text rear their ugly heads. I try to be polite and frank with you and you get a major case of recto-cranial insertion because I don't bend over backwards to kiss your feet in thanks for the wonderful advice you gave me when I've read it in several other websites. Your post (#4 in the thread) was hardly polite, to either me or to Hornbrod. If that's your idea of "polite," I don't want to hang with your group of friends. I did not insult, attack, degrade, or humiliate you. I did not ignore you or reply (initially) in a sardonic manner. Now, if you know a more polite way of saying you already possess certain knowledge than saying, "I know that if I ....... then ........" then please illuminate me. I crave knowledge. Also, the read upside-down/backwards thing was an attempt to be funny, so you know and don't attack me over that next. Link to comment Share on other sites More sharing options...
dave92cherokee Posted July 9, 2013 Share Posted July 9, 2013 In response to the original post with no sarcasm taken or given, it's likely 2wd because the original trans probably crapped out on them and they pulled a 2wd tranny from a xj in a JY to throw in so it'll run. The maint req light I've cleared on xj's before after the repair was performed by disconnecting + and - from the batt and touching the two leads together draining all residual power from the ecu. This will also reset the performance of the system and likely cause it to run rich till it relearns the driving cycle and sensors to manage the air/fuel ratio correctly. If the light comes back on might look into going to the dealership to have the code read to see if there was another underlying code causing it. As for the headlights they're square and can be installed upside down, whether it was on purpose or accidental from the previous owner is unknown as most front bumpers for xj's/mj's clear the headlight with ease or block very minimal light output. Easiest way is install them correctly and park close to a wall and then slowly backup to see how much/where the light is blocked. This will also allow you to do a basic headlight alignment so they're not blinding oncoming traffic as well. Link to comment Share on other sites More sharing options...
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