My 2005 dodge grand caravan is having a shifting problem, what could it be other than transmission, sensors, shifting modules?

You can only diagnose problems like yours with a pro grade scan tool computer as opposed to a generic 'code reader'. It may be the shift solenoid or a computer data issue. A 5 grand scan tool can instruct shift solenoids to operate and verify that they have. They can also diagnose issues with the data transfers. The Durango works entirely by computer instructions from module to module.

https://www.google.com/search?q=mobile+auto+electrician+near+me

Shifting problems are a known issue.

https://www.google.com/search?q=2005+Dodge+Durango+not+shifting+into+third+gear

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Check all the vacuum hoses and the regulater

How to Replace The Transmission Control Module in 2002 Dodge Grand Caravan...

Dodge has allways had problems with there transmissions in the older mint vans ,With them (Slipping) trans mission will have to be rebuilt,

P0700 is just the powertrain control module being signed to turn the check engine light on to indicate alert you to a transmission issue. As far as the other one goes you likely have a failed Torque converter clutch so the solenoid would not fix the problem. You will need to remove the transmission and replace the TC

If the transmission will still shift then the problem is in the instrument cluster.Will need to be repaired at the dealer or a speedometer repair shop.If the transmission will not shift then the problem is most likely in the TCM(transmission control module)and/or wiring.Need to have transmission and body computer codes pulled.You will need to go to a professional repair facility to do this because the code pullers they use at the parts stores will not access these codes.

Mounted on the trany is a speedometer sensor. The vehical will not up-shift it, sensor, is malfunctioning. The vehicles computer doesn't know that it is not going fast enough to change gears.

I am looking for a diagram that shows were the speed sensor is located on the transmission.Of a 96 Grand Caravan.

the speed sensor is for Overdrive only, it does not shift the gears it sends the signal to the transmission control module that in turn signals the overdrive shift solenoid to engage/shift into OD.

it sounds as though your transmission input and output sensors are faulty.they are located on the driver side of transmission.input at front of trans.output at rear of transmission. normally if input sensor is faulty trans will stay in limp mode. if output sensor is faulty speedo will not register. they both resemble temp sensors with elec connectors