The p0700 error code indicates that there is a problem with the transmission control system. This system controls the shifting of gears in an automatic transmission, and the p0700 code indicates that there is a problem with the way the system is functioning. There are a number of reasons why this code may occur, including a faulty transmission control module, a problem with the transmission itself, or a problem with the vehicle's electrical system.
Other common searches for this error include:
- error code p0700
 - p0700
 
- Check the transmission fluid level and condition
 - Inspect the transmission for leaks
 - Check for loose or damaged electrical connectors at the transmission
 - Check the transmission control module for loose or damaged connectors
 - Inspect the transmission for mechanical damage
 - Replace the transmission control module
 
1. Check the transmission fluid level and condition
- Locate the transmission fluid level and observe the level or condition.
 - If the transmission fluid level is low, add transmission fluid to the appropriate level.
 - If the transmission fluid level is high, add transmission fluid to the appropriate level.
 - Reinstall the transmission fluid cooler if necessary.
 - Reinstall the transmission fluid filter.
 - If the transmission fluid level is still high, replace the transmission fluid cooler.
 - If the transmission fluid level is still high, replace the transmission fluid filter and transmission fluid.
 
2. Inspect the transmission for leaks
- Remove the transmission pan.
 - Check the fluid level and note any leaks.
 - Check the fluid pressure and note any leaks.
 - Check the fluid temperature and note any leaks.
 - Inspect the transmission for wear or damage.
 
3. Check for loose or damaged electrical connectors at the transmission
Step 1: remove the transmission cover
- 
Remove the transmission cover. Refer to Transmission Removal and Installation.
 - 
Disconnect the battery cable. Refer to Battery Cable Disconnections.
 - 
Remove the five screws that secure the transmission case to the engine.
 - 
Remove the transmission case. Refer to Transmission Removal and Installation.
 - 
Inspect the electrical connectors for loose or damaged wiring. Replace any damaged connectors. Step 2: clean and lubricate the transmission
 - 
Clean and lubricate the transmission. Refer to Transmission Cleaning and Lubrication.
 - 
Reinstall the transmission case. Refer to Transmission Reinstallation.
 - 
Reconnect the battery cable. Refer to Battery Cable Reconnections.
 
4. Check the transmission control module for loose or damaged connectors
- Inspect the connectors for damage.
 - Remove any damaged or loose connectors.
 - Reinstall the connectors in the correct positions.
 - Check the operation of the vehicle.
 
5. Inspect the transmission for mechanical damage
- Inspect the engine for obvious damage. If the engine appears to be in good condition, inspect the transmission for mechanical damage.
 - Check the fluid levels, if present.
 - If the transmission appears to be in good condition, check the fluid levels, if present.
 - Check the torque converter for damage.
 - If the transmission appears to be in good condition, replace the torque converter if necessary.
 
6. Replace the transmission control module
- Remove the instrument panel.
 - Remove the passenger side front wheelwell.
 - Remove the transmission cover.
 - Remove the transmission.
 - Remove the two bolts that secure the transmission control module (TCM) to the transmission.
 - Remove the TCM.
 - Install a new TCM.
 - reassemble the transmission.
 - Replace the instrument panel.
 
Some users might also have success with the following opitons:
- Replace the transmission.
 
