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Home/Cars/Ram/1500/DT (2019-Present)/how to fix P0700 transmission code in Ram 1500 DT (2019-Present)

how to fix P0700 transmission code in Ram 1500 DT (2019-Present)

Ram 1500 DT (2019-Present)

Error Codes
Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
542 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0700 transmission code in Ram 1500 DT (2019-present). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems.
  • ⚠Allow engine to cool before opening the transmission fluid pan.

Symptoms

  • •Check engine light illuminated
  • •Rough shifting or delayed engagement
  • •Transmission slipping or erratic behavior
  • •Decreased fuel economy
  • •Possible loss of overdrive
  • •Transmission overheating

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0700 and check for any related transmission codes.
  2. 2Inspect the transmission fluid level and condition; look for contamination or burnt smell.
  3. 3Check the wiring and connectors to the TCM for damage or corrosion.
  4. 4Inspect the transmission control module for any visible faults.
  5. 5Test the TCM using a multimeter to verify proper voltage and ground.
  6. 6Check for any mechanical issues in the transmission, such as low fluid pressure or internal component wear.

Solution

Solution

1. Preparation

  • Gather tools and parts.
  • Ensure the vehicle is on a level surface and the engine is off.
  • Disconnect the negative battery terminal for safety.

2. Check and Replace Transmission Fluid

  1. Check Fluid Level:
    • Remove the dipstick from the transmission.
    • Check the level; if low, top off with the manufacturer-recommended fluid (e.g., ATF+4).
  2. Inspect Fluid Condition:
    • If fluid is dark or smells burnt, proceed to replace it.
  3. Fluid Replacement:
    • Drain the transmission fluid using a drain pan.
    • Replace the transmission filter if applicable.
    • Refill with the correct type and amount of fluid.

3. Repair or Replace Wiring/Connectors

  1. Inspect Wiring:
    • Examine the wiring harness leading to the TCM for any fraying or damage.
  2. Repair/Replace:
    • If damaged, repair the wiring with solder and heat shrink tubing or replace the entire harness as needed.
    • Secure all connections and ensure they are clean.

4. Test and Replace TCM if Necessary

  1. Testing TCM:
    • Use a multimeter to check the voltage at the TCM connectors.
    • Ensure voltage and ground are within specifications.
  2. Replacement:
    • If the TCM is faulty, disconnect it and remove any mounting screws.
    • Install the new TCM, reconnect all electrical connectors, and secure it in place.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Socket set
  • Multimeter
  • Torque wrench
  • Drain pan

Parts Required

  • Transmission fluid (e.g., ATF+4)
  • Transmission filter (if applicable)
  • Wiring harness (if damaged)
  • Transmission Control Module (if faulty)

Additional Information

Error CodeP0700
Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

4 items

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