Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory. This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module.
SOURCE: 2002 Dodge Intrepid- check engine light came on
This code indicates an automatic transmission control problem. The presence of this code means that the transmission control module or TCM has detected a fault and relayed it to the PCM. It could be a TCM related solenoid has failed or is damaged or the TCM itself could be faulty. Best wishes.
SOURCE: 2002 Dodge Durango....The code is PO700. The door
the po700 code will be found in the engine controller all it means is there is a code preasent in the trans controller a good scan tool is needed to communicate with trans controller to retrieve the stored codes that specify problem
SOURCE: Having trouble with my transmision in my dodge
Here's what my service manual says:
EATX Controller DTC Present
This SBEC III or JTEC DTC indicates that the EATX or Aisin controller has an active fault and has illuminated the MIL via a CCD (EATX) or SCI (Aisin) message. The spscific fault must be acquired from the EATX via CCD or from the Aisin via ISO-9141.
Here's what I know: MIL=malfunction indicator light; DTC=diganostic trouble code; CCD=Chrysler collision detection. Beyond that, I'm clueless. Sounds like it needs to be read out at the dealer. Then again, if it was a one-time glitch, it might clear itself after several drive cycles.
SOURCE: Dodge Ram 1500 4x4 quad
The Po700 code means that something is wrong with your transmission control module. The Po841 code means that your filter may be loose. Click on the link below to read more:
http://www.dodgetalk.com/forums/showthread.php?p=2629632
SOURCE: I have no gears forward
Your scanner will give you the code but it will not tell you how to fix your vehicle. Scanners basically tell you what systems to check or what systems are failing.
These are what your codes mean:
P0700: Transmission Control Module
- Shorted or open circuit within transmission control module (TCM)
- Failure of transaxle control module. This is just a informative code.
P0734: Gear ratio error in 4th gear
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
P0732: Gear ratio error in 2nd gear
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
P0731: Gear ratio error in 1st gear
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
P0871: Transmission Fluid Pressure Sensor Switch C
P0876: Transmission Fluid Pressure Sensor Switch D
Emissions Codes:
P0400: Exhaust Gas Recirculation Flow Malfunction
- Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
- EGR volume control solenoid valve
- Dead (Weak) battery
- EGR temperature sensor and circuit
- EGR Valve
How to fix :
- Clean EGR Valve
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve
P0440: EVAP Emission Control System Malfunction
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
How to fix:
- Retight or replaced fuel tank filler cap
- Replaced damage or leaking EVAP canister
P0456: EVAP Control System Leak Detected (Very Small Leak)
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
How to fix:
- Retight or replaced fuel tank filler cap
- Replaced damage or leaking EVAP canister
P0441: EVAP Emission Control System Incorrect Purge
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
How to fix:
- Retight or replaced fuel tank filler cap
- Replaced damage or leaking EVAP canister
Based on the info check your EVAP system. I would check for leaks and maybe replace the EGR and the canister.
For the transmission check the TCM also you may need to take it to a mechanic though.
Hope this helps a little.
- Tech 101 (ASE CERTIFIED MASTER TECHNICIAN)
- Larson's Mobile Auto Repair
- 209-845-7620
- Oakdale, CA
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