Q: PO700 code is read on a code reader.

asked by on

2005 Dodge Ram 1500 4.7 is stuck in limp in mode. I've replaced the solonoid pack, line pressure sensor, valve body, computer fluid and filters with ATF +4 as called for. I'm at a loss and tried to olhm out the points on the c4 connector at the computer but don't know what I'm looking for.

My car has 175000 miles.
My car has an automatic transmission.

Hi there. The computer to the transmission (TCS) has failed and is not responding to any sensors and solenoids. When the TCS fails, it shuts off power to the transmission putting it into a limp mode as if the harness was removed. Before replacing the TCS, check the wiring harness inside the transmission for any breaks or frayed wires. If the harness looks good and has no issues with any resistance, then I recommend replacing the TCS. If you need further assistance with your transmission in limp mode, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. PO700 code is read on a code reader.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I inspect my seat belts to make sure they are in safe condition?

Periodically checking the health of your seat belts is very important. Damaged seat belts will not do their job effectively. To check the health of the seat belts in your car, feel and visually inspect the belt, buckle, and connector,...

Q: Intake camshaft needs replaced according to my Audi dealer.

If you vehicle is slipping a bit when accelerating, that is not the engine's intake counter balance shaft nor the engine's camshaft, but rather the transmission clutches are not pressurizing all the way or the clutches are worn. First check...

Q: Starting problem - 2005 Hyundai Tiburon

Hello and thank you for contacting YourMechanic. Check the mass air flow (MAF) sensor for any debris or if it has a bad connection. If the sensor is dirty, clean the sensor, and put it back on. If the sensor...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...