Looking for some help. I started my truck back up after a short trip to the store. I put it in drive and pulled forward a few feet and stopped to let someone pass in front of me. At that point it felt like someone rear ended me, the truck jerked forward while my foot was on the brake and a few seconds later the engine light came on. I have restarted the truck a few times and the light is still on. The truck drives no different.
It is an 06 quad cab with the hemi and only has 49500 miles on it. Can't afford a costly repair right now, though it is a certified pre owned truck and the motor/tranny are covered after a deductible. Just don't want to have to take a day off of work to get it checked out if it is something that I can do quickly myself.
Thanks in advance for any help.

 

First thing I'd do is take her to Autozone and check the codes (free). Then take her to the dealer to have them tell you whats up given the codes it threw (usually free).

 

Thanks foro the advice. Got 3 codes P0700, P0731 and P0876. Now to find out what they mean.

 

Brought my 06 ram to autozone and had them check what codes were on my truck after my check engine light came on (didn't know thay did that - thanks go out to another forum member)
Got the following codes: P0700, P0731 and P0876.

Edit: OK, Google is my friend. This is what I found:
P0700,EATX Ctrller DTC Present
P0731 Gear 1 Incorrect Ratio
P0876 Trans Fluid Press Sens/Switch D Circ Range/Perf
Now, what to do with this?

 

here see if this helps
P0700-TRANSMISSION CONTROL SYSTEM (MIL REQUEST)

WHEN MONITORED:
Ignition on and battery voltage greater than 10 volts .

SET CONDITION:
An active DTC is stored in the TCM. One Trip Fault. Three good trips to turn off the MIL.

POSSIBLE CAUSES

• DTC present in the transmission control module

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

DIAGNOSTIC TEST


1.DTC PRESENT IN EATX CONTROLLER</B>
This is an informational DTC letting you know that a DTC(s) is stored in the Transmission Control Module.
Erase this DTC from the PCM after all Transmission DTC(s) have been repaired.
Using a scan tool, read the Transmission Controller DTC and refer to the Transmission Category and perform the appropriate symptom.PCM Diagnostic Information complete</B> .Continue</B> Test Complete.

 

P0731 GEAR RATIO ERROR IN 1ST

When Monitored
Continuously with the ignition on, engine running, with the transmission in gear.

Set Condition
If the ratio of the Input RPM to the Output RPM does not match the current gear ratio. This DTC can take up to five minutes of problem identification before illuminating the MIL

Possible Causes

• CUT UD PISTON SEAL
• LOW FLUID LEVEL
• CRACKED OR MIS-INSTALLED PRIMARY OIL FILTER OR SEAL
• STUCK OR STICKING MAIN REGULATOR VALVE
• FAILED OVERRUNNING CLUTCH
• CUT UD ACCUMULATOR SEAL RING
• BROKEN UD ACCUMULATOR PISTON
• BROKEN REACTION SHAFT SUPPORT SEAL RING
• LOW LINE PRESSURE
• BROKEN / MISSING MAIN VALVE BODY BLEED ORIFICE
• BROKEN / MISSING DRIBBLER ORIFICE ASSEMBLY IN REACTION SHAFT SUPPORT
• POOR MACHINING ON PUMP VALVE BODY FACE
• INPUT SPEED SENSOR AND RELATED WIRING
• TRANSMISSION SOLENOID/TRS ASSEMBLY
• POWERTRAIN CONTROL MODULE

Always perform the 45RFE/545RFE Pre-Diagnostic Troubleshooting procedure before proceeding.

Theory of Operation
The transmission system uses two speed sensors, one to measure input RPM and one to measure output RPM. These inputs are essential for proper transmission operation. Therefore, the integrity of this data is verified through the following checks:

1)Once in a particular gear, if the gear ratio varies from the correct gear ratio, the corresponding in-gear trouble code is set (DTCs P073136).2)An excessive change in input or output speeds indicating signal intermittent may result in the DTCs P0715 and/or P0720 being set.3)If the common speed sensor ground circuit is lost, both sensor inputs will read the pulses from the input speed sensor when at a stop in neutral. Since the input speed sensor reads 60 teeth from the input clutch hub and the output speed sensor reads 30 teeth from the park gear, the result is an apparent speed ratio of 1:2 and may cause the DTC P1794 to set.
Diagnostic Test

1. CHECK FOR RELATED DTCS With the scan tool, check for other transmission DTCs. If any of these DTCs are present, perform their respective tests first. Are there any Transmission; solenoid, line pressure, speed sensor, and/or loss of prime DTC's present? Yes >> Perform the appropriate symptom. If any of these DTCs are present, they may cause a Speed Ratio Error. Perform the test for P0944 first if it is present. See: P0944 No >> Go To 2.
2. CHECK IF DTC P0731 IS CURRENT With the scan tool, perform the 1st Gear Clutch Test. Follow the instructions on the scan tool. Increase the throttle angle or TPS Degree to 30° for no more than a few seconds. CAUTION: Do not overheat the transmission. Did the Clutch Test pass, Input Speed remain at zero? Yes >> Go To 3. No >> Go To 4.
3. CHECK FOR INTERMITTENT OPERATION The conditions to set this DTC are not currently present. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set.

Check the gearshift linkage adjustment.
Intermittent Gear Ratio DTCs can be set by problems in the Input and Output Speed Sensor circuits and/or Speed Sensor Ground circuit.
Remove the Ignition Switch Feed fuse from the TIPM.

CAUTION: Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being started in gear.

WARNING: The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in personal injury or death.

Install the Transmission Simulator, Miller tool #8333.
Wiggle wiring and connectors while checking for intermittent operation with the Transmission Simulator.
Gear ratio DTCs can also be set under extreme temperature conditions.
Verify if the problem is only experienced under extreme hot or cold conditions.
Were there any problems found.
Yes >> Repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST-VER 1. See: Verification Tests\Transmission Verification Test
No >> Test Complete.

1. CHECK INTERNAL TRANSMISSION Repair internal transmission as necessary. If there were any line pressure DTCs present along with this DTC, make sure to inspect the: Primary oil filter and seal, Transmission Oil Pump, and the Main regulator valve. If DTCs P0876 and/or P0875 were present in addition to the P0731, replace the Transmission Solenoid/TRS Assembly in addition to necessary internal repairs. Pay particular attention to the following list of possible causes when repairing the transmission:

View repair
Repair
Repair internal transmission.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST-VER 1. See: Verification Tests\Transmission Verification Test

 

P0876 P0876 UD PRESSURE SWITCH RATIONALITY



When Monitored
Continuously with the ignition on and engine running.

Set Condition
This DTC is set if the UD pressure switch is in the wrong state for the current gear. For example, this code would be set if the UD pressure switch remained off while the transmission was in second gear.

Possible Causes

• RELATED TCM POWER INPUT DTCS PRESENT
• LOW FLUID LEVEL
• NO. 2 CHECK BALL CUT OR DAMAGED
• LOW LINE PRESSURE
• CRACKED OR MIS-INSTALLED SUMP FILTER OR SEAL
• STICKING MAIN REGULATOR VALVE IN PUMP VALVE BODY
• (T29) UD PRESSURE SWITCH SENSE CIRCUIT OPEN
• (T29) UD PRESSURE SWITCH CIRCUIT SHORT TO GROUND
• (T29) UD PRESSURE SWITCH SENSE CIRCUIT SHORT TO ANOTHER CIRCUITS
• TRANSMISSION SOLENOID/TRS ASSEMBLY
• POWERTRAIN CONTROL MODULE

Always perform the 45RFE/545RFE Pre-Diagnostic Troubleshooting Procedure before proceeding.

Theory of Operation

 

sorry about how long it is but hopefully it helps. good luck

 

sorry didn't see this post. look at your "check engine light" post i put up a few things on that one that might help you. good luck

 

Thanks, I saw it. Guess it's off to the dealer - looks like a tranny problem if I am reading it right.