Error codes PO500, PO731, PO700

rkedz · #1 06-25-2008, 08:05 AM

I have a 1999 plymouth Voyager 3.3 Auto4 spd with 190,000 miles. Speedometer stopped working so I scanned the computer and came up with 3 codes. MIL did come on. I understand that PO500 is the vehicle speed sensor. How dificult is it to change and where is it located? What would the other 2 codes mean? It seems to be going into reverse a little harder then normal. Fluid is ok. No leaks. No unusual noises. I expected this to happen sooner or later. Any help? Thx

This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!

master tech · #2 06-25-2008, 10:04 AM

replace the output speed sensor on you 4 speed trans, 3.3 engines only have 4 speed tansmissions. The output sensor is localed next to the transfer gear. Or if you are looking the two sensors, it would be the one on the right.

rkedz · #3 06-25-2008, 10:29 AM

What do you think the other codes are calling? I am getting a little buck when I drove it around the block.

master tech · #4 06-25-2008, 09:55 PM

Your transmission is going into limp-in or fail safe mode. P0500 = speed signal, P700 = PCM has a transmission code in the EATX controller, and P0731= Gear ratio error in 1st. Replace the output speed sensor and clear the codes.

rkedz · #5 06-26-2008, 08:01 AM

Thanks for the great input.

deezozdodge · #6 06-28-2008, 03:26 PM

I have a (02) Grand Caravan Sport getting the engine code of p0700. Would replacing the output speed sensor clear the only code?

rkedz · #7 06-28-2008, 08:56 PM

I had the output speed sensor replaced and it cleared all 3 codes. It seems to cause a lot of problems when this sensor goes bad. So yes would be the answer.

deezozdodge · #8 07-03-2008, 05:29 PM

Replaced the output speed sensor (5 - 10 minute fix), cleared the p0700 code; so far - so good...

gtomike · #9 09-06-2008, 05:52 PM

Quote:

Originally Posted by deezozdodge

Replaced the output speed sensor (5 - 10 minute fix), cleared the p0700 code; so far - so good...

Hello deezozdodge!! You reported in Jan. of 2008 that you replaced the output speed sensor; and after clearing the codes, all was well. Well it is now Sept. 2008 has the p0700 code still remained off? I ask because I have a 1997 Caravan/3.3L/4 speed AT and it is now displaying a p0700 & p0740 code. I'm hoping that replacing the output speed sensor may solve my problem!
Thanks GTOMIKE