OBD Code 1768 - Acura Forum : Acura Forums

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post #1 of 6 (permalink) Old 07-07-09, 06:35 PM Thread Starter
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OBD Code 1768

My transmission stuck in D4 (D4 flashes) and the check eng light came on. The code reader says code 1768 was recorded. I looked it up and it says it is some sort of transaxel problem.

Anyone had this one? Can I just remove and replace a black box?

Last edited by Mike734; 07-08-09 at 03:35 AM.
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post #2 of 6 Old 07-08-09, 07:32 AM
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That code identifies a bad linear solenoid. You either have a wiring problem between the PCM and the linear solenoid or the solenoid is bad.
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post #3 of 6 Old 08-02-09, 03:55 PM Thread Starter
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Quote:
Originally Posted by 2000RL View Post
That code identifies a bad linear solenoid. You either have a wiring problem between the PCM and the linear solenoid or the solenoid is bad.
Since this problem only happens once a month or so, can I assume it is a wiring problem? Except when it does happen the tranny is actually stuck in 4th gear. I have to reset the codes to get the car to drive normally again.

I look through the manual but found it seems I have to partially disassemble the tranny to get to the linear solenoid. Do any of you know this problem and have a quick way to check the wiring or change the solenoid?
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post #4 of 6 Old 09-03-09, 03:42 PM Thread Starter
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I had Acura replace the linear solenoid. They replaced the shift solenoids instead but since I asked them to save the parts I was able to see the mistake so they kept the car for another day and replaced the correct solenoid. One day later the problem happened again. I guess that means a wiring problem. Hopefully it is under warranty now and they will fix it for free.

I'll report later. Hopefully they will not try to sell me a new PCM computer. If they do, does anyone know where to get a used one cheap?

Last edited by Mike734; 10-26-09 at 01:55 PM. Reason: Context
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post #5 of 6 Old 09-04-09, 12:28 PM Thread Starter
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Well if failed again. Now what? They want to keep the car for diagnostics. The mechanic drove it home last night waiting for the failure to happen. No luck. In the mean time I'm driving a brand new TL but I miss my car.

They think there is a wiring problem but don't know how they are going to find it. I can't find any TSB about this problem. Anyone else know about previous problems for the 98 RLs?
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post #6 of 6 Old 10-26-09, 01:58 PM Thread Starter
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FOLLOW UP

The mechanic drove it home poked and prodded at every wire connection and could not find anything amiss. I've had the car for several hundred miles now with no problem. I guess he did something. I've got lots of new fluid and all new solenoids so I feel like it should last a while.
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