Hello, I have an 05 dakota v6 4x4 quad cab and just got this code p0700 & p0740 there is no issues at all shifting or with the overdrive all function well. Any help or guidance will be great thanks in advance.

Trans oil was changed maybe 15k miles ago

 

Wow.nothing in this I'm sure I'm not the only one or the 1st one.

 

If there aren't any symptoms to go with the codes then people can't give useful advice. Mine throws those two all the time but I know it's because my line pressure regulator is bad and malfunctions every few months. Just disconnect the battery over night to reset the PCM and see if the codes come back.

 

Did you change filters also or just fluid? And was the fluid change a "drop the pan" drain and refill type of change?

 

My question is do you have a 42RLE or a 545RFE transmission?
Symptom:
P0740-TCC OUT OF RANGE
When Monitored and Set Condition:
P0740-TCC OUT OF RANGE
When Monitored: The Torque Converter Clutch (TCC) is in FEMCC or PEMCC, Transmission
temperature is hot, Engine temperature is greater than 38° C or 100° F,
Transmission Input Speed greater than 1750 RPM, TPS less than 30°.
Set Condition: The TCC is modulated by controlling the duty cycle of the L/R Solenoid
until the difference between the Engine and the Transmission Input Speed RPM or duty
cycle is within a desired range. The DTC is set after the period of 10 seconds and 3
occurrences of either: FEMCC - with slip greater than 100 RPM or PEMCC - duty cycle
greater than 85%.
POSSIBLE CAUSES
RELATED DTC’S PRESENT
INTERNAL TRANSMISSION
INTERMITTENT WIRING AND CONNECTORS
TEST ACTION APPLICABILITY
1 NOTE: Low fluid level can be the cause of many transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read Engine DTC’s. Check and repair all Engine DTC’s prior to
performing any transmission symptom diagnostics.
With the DRBIIIt, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.
NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0706 Check Shifter Signal.
For Gear Ratio DTC’s, check and record all CVI’s.
Most DTC’s set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Powertrain Control Module. Some problems are
corrected by software upgrades to the Transmission and Engine software.
NOTE: Check for applicable TSB’s related to the problem.
Perform this procedure prior to Symptom diagnosis.
All
Continue
Go To 2TEST ACTION APPLICABILITY
2 With the DRBIIIt, read Transmission DTC’s
Are the DTC’s P0750 and/or P0841 present also?
All
Yes ! Refer to the Transmission category and perform the appropriate
symptom.
Perform 42RLE (NGC) TRANSMISSION VERIFICATION TEST
- VER 1.
No ! Go To 3
3 Ignition on, engine not running.
With the DRBIIIt, record and erase DTC’s.
Drive the vehicle until it is fully warmed up. At least 110 degrees.
Perform the following step 3 times.
Drive the vehicle at 50 MPH and allow 4th gear to engage for at least 10 seconds.
Close the throttle, then tip back in until the throttle angle is between 25 and 29
degrees. Note that if you go over 30 degrees, you must back off of the throttle and
retry.
Did the TCC engage during any of the attempts?
All
Yes ! Go To 4
No ! Go To 5
4 The conditions necessary to set the DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wiring and connectors while checking for shorted and open circuits.
This DTC can also be set under extreme temperature conditions, this is usually
caused by an internal problem. Verify if the problem is only experienced under
extreme hot or cold conditions.
With the DRBIIIt, check the EATX EVENT DATA to help identify the conditions in
which the DTC was set.
Were there any problems found?
All
Yes ! Repair as necessary.
Perform 42RLE (NGC) TRANSMISSION VERIFICATION TEST
- VER 1.
No ! Test Complete.
5 If there are no possible causes remaining, view repair. All
Repair
Perform the Hydraulic Pressure test per the Service Information
and repair the internal transmission components and Torque
convertor as necessary.

 

Great info. Let me start by saying thank you. I will start with taking the pan out and changing the filter and replace with ATF+4. I'm puzzled due to no symptoms. Don't want to go to a repair shop as the few I have called tell me torque converter is bad and it's $1000 to replace but since there may consider rebuilding trans for $2300. Or drive it till it blows up it has the 42rle trans.