how to diagnose P0701 code in my Ram 1500 DT (2019-Present)

Learn how to diagnose and fix P0701 transmission control issues in Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shock.
• Ensure the vehicle is parked on a level surface and secure with wheel chocks.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fluid dipstick and check the fluid level and condition.
  2. If fluid is low, add the manufacturer-recommended transmission fluid.
  3. If fluid is dirty, drain the old fluid using a drain pan; replace the filter and refill with new fluid.
• Tools Required:
  • Drain pan
  • Funnel
  • Socket set
• Safety Warnings:
  • Ensure the engine is cool before working on the transmission.

3. Check and Repair Wiring

• Sub-steps:
  1. Inspect the wiring harness connected to the TCM for any visible damage.
  2. Use a multimeter to check for continuity in the wiring.
  3. Repair or replace any damaged wires or connectors found.
• Tools Required:
  • Multimeter
  • Wire repair kit

4. Test and Replace TCM

• Sub-steps:
  1. If no wiring issues are found, test the TCM for faults using a diagnostic scanner.
  2. If the TCM is malfunctioning, remove it from its mounting location.
  3. Install the new TCM by reversing the removal steps and ensuring all connections are secure.
• Tools Required:
  • Diagnostic scanner
  • Socket set

5. Transmission Range Sensor Replacement

• Sub-steps:
  1. Locate the transmission range sensor on the transmission.
  2. Disconnect the electrical connector and remove the mounting bolts.
  3. Install the new sensor and reconnect the wiring.
• Tools Required:
  • Socket set
  • Torque wrench
• Torque Values: Refer to the manufacturer’s specifications for proper torque settings.