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Discussion Starter #1
I'm glad so many Odyssey owners are enjoying their vans. As I write this, mine is in little pieces all over the shop floor at the dealer’s with a mysterious electronic ailment. First some background history on problems with this van:

1. Middle row starboard seat belt tensioner refuses to release – old dealer reluctantly replaces spool under warranty

2. Port side power sliding door failure - readjusted

3. Recall for dash dimmer control replacement

4. Recall for wiring harness under hood

5. Recall for power sliding door parts

6. Starboard power sliding door refuses to shut completely - jumps middle track when closed manually and creates a 2 foot long gouge in the paint down to the primer! - repaired under warranty

Now to the electronics. The problems manifest themselves in many different ways but I have listed some common combinations.

Case 1: Remote unlocks driver’s door, but subsequent attempts don't unlock other doors. Power lock switch on driver’s door does not work, but passenger’s does.

Case 2: Remote unlocks doors properly, open sliding door to put my daughter in, remaining doors lock themselves after 30 seconds (this can happen even with the key in the ignition).

Case 3: Power window switches on the driver’s door do not work and interior lights do not come on when doors opened.

Case 4: Remote unlocks doors properly, doors lock after 30 seconds, even if the key is in the ignition or the van is running and moving

Case 5: Exterior lights don't flash for locking/unlocking.

On my first visit to the dealer, a faulty multiplexer was diagnosed and replaced under warranty. A multiplexer is a little beige box that replaces the multitude of relays and switches that traditionally controlled electronic components: the Odyssey has 2 or 3 of them.

The dealer's computer says all is okey-dokey with the remaining systems. So the dealer contacted Honda Tech Support to see if they have encountered this before... they haven't. The dealer's solution is to cannibalize a similar van for parts until they get lucky and replace whatever is causing the problem! ARGGGHHH! They've had it for almost 3 days and haven't fixed it yet.

The fur's gonna fly if they don't.


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Blue 1999 EX, no mods (yet)!

[This message has been edited by mclarke (edited 06-22-2001).]

[This message has been edited by mclarke (edited 06-22-2001).]
 

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I noticed no reply's or discussion on your post so I can't just let it sit.

I think you have a ground problem in the electrical system. Potentially an easy fix if you find the poor ground.

Maybe the dealer has fixed things by now since your post was on the 22nd but ground problems can cause weird and unexplainable symptoms when actually nothing is wrong. There are muliple ground points in any vehicle, the trick is to find as many as you can and clean up or ensure a good ground connection.

Let us know the outcome!

Jim
 

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Discussion Starter #3
I picked it up on the 22nd, but it started acting up again on Saturday. Back it went on Monday.

The dealer thinks it's a ground problem too, but damned if they can find it. The problem seems to manifest itself more often when the van's been sitting in the sun and is good and hot. The good news (for me) is that someone else has the same problem. The bad news (for me) is that the other party has not brought their Ody in yet, so mine is the Guinea Pig. The dealer gave me a courtesy car though, so I can't get too mad... Still, I need my Ody to haul junk to the dump on Saturday; so if they can't fix it before then, I'll have to bring it back - again.

Mike

<font face="Verdana, Arial" size="2">Originally posted by triplecut:
I noticed no reply's or discussion on your post so I can't just let it sit.

I think you have a ground problem in the electrical system. Potentially an easy fix if you find the poor ground.

Maybe the dealer has fixed things by now since your post was on the 22nd but ground problems can cause weird and unexplainable symptoms when actually nothing is wrong. There are muliple ground points in any vehicle, the trick is to find as many as you can and clean up or ensure a good ground connection.

Let us know the outcome!

Jim
</font>


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Blue 1999 EX, block heater, tranny cooler, trailer hitch
 

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Discussion Starter #4
I got my Ody back last night, but the electrical demons have to be exorcised. After much fiddling and calls to Honda tech. support, the dealer has narrowed the problem down to the driver's door circuit responsible for letting the computers known that the door has been opened or is open. The other likewise afflicted Ody is due in next week so, hopefully, the dealer will have a better idea of the problem by next Thursday. I'll post the cause when I find out.

Mike
 

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Discussion Starter #5
The dealer finally traced the problem to a corroded ground in the driver's side B-pillar. The electrical demons have been exorcised.

Mike
 

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<font face="Verdana, Arial" size="2">Originally posted by mclarke:
The dealer finally traced the problem to a corroded ground in the driver's side B-pillar. The electrical demons have been exorcised.

Mike
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Hi Mike,

I'm glad your problems have been solved. I know it was frustrating for you. FWIW, electrical problems like this can be just as frustrating for the mechanic. He knows he's got a customer out there who's likely not got infinite patience and would like their vehicle back and these things can be very difficult to track down, even something as simple as a defective ground connection.

I used to work at a Lincoln/Mercury dealer about 20 years ago. We had a new car come in that would light up every interior light in the car any time you turned on the turn signals or stepped on the brakes. We had a problem that was allowing electricity to feed back through other systems when the turn signals and brake lights were active. The mechanic assigned to figure out this nightmare refused to work on it unless Ford agreed to pay him the actual time it took to find the problem. Auto companies usually pay from a predefined hourly rate and the mechanic would have lost his shirt working on that. Long story short, after completely stripping the interior of the car, tracing the electrical pathways from front to back, he found that "both" tail light bulbs were shorted out internally. They both looked perfectly normal but any power sent to the tail light element would feed back through the brake light element and vice versa. Ford wound up paying over 30 hours labor to essentially replace two light bulbs. If I hadn't seen this one first hand, I wouldn't have believed it. Naturally enough, Ford wanted to see those bulbs too! We sent them back when Ford sent for them and the warrentee claim was settled with no auguments. You just never know sometimes.

Good luck with your Ody from now on!

Drive Safe,
Steve
 

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Discussion Starter #8
An electronics troubleshooter, eh? Check out my question in the A/V forum regarding the use of old laptop TFT displays in mobile video applications. I've been told by Sharp and a third party that it's not possible. I view that response as someone throwing down the gauntlet.

Mike

<font face="Verdana, Arial" size="2">Originally posted by Coleman_lot:
Mike, I'm so glad you got it fix. Those are really is a pain.

Intripid, Hey, I think I need to go work for the dealer doing electrical troubleshooting. I love those kind of stuff. I work for Motorola as an equipment specialist. I perform all kind of electrical and electronics troubleshoot. I seen a lot of the LED trouble which can relate to your light bulb story.
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LOL! You go mclarke! Now that's got my motor running too. I'm a computer programmer who mucks around occasionally w/ the hardware as well.

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Marvyn

2001 SS EX-NAVI (2000 mi)
Mud Flaps * Cargo Tray * Leather Steering Wheel Wrap * Blaupunkt 652 Speakers * Hyper-brand 'super bright' Headlights * Weathertech Floor Mats * PIAA Xtreme White 7440 Backup Lights
 

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Discussion Starter #10
(Also posted to A/V forum)

I may have found what I was looking for:

http://www.flat-panel.com/controllers.htm

Mike

<font face="Verdana, Arial" size="2">Originally posted by nyvram:
LOL! You go mclarke! Now that's got my motor running too. I'm a computer programmer who mucks around occasionally w/ the hardware as well.

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[This message has been edited by mclarke (edited 07-25-2001).]
 
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