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2020 Ford Escape Transmission Shifting Hard, P0700 & P0705 Codes

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Ryan M. · rep 0 · May 22, 2:23 AM · 1 replies · solved · Question

Vehicle: 2020 Ford Escape Titanium

Hi all,

My 2020 Ford Escape Titanium (2.0L EcoBoost) has developed a really concerning issue with its transmission. Over the past week, it's started shifting very harshly, especially between 2nd and 3rd gear, and sometimes from 3rd to 4th. It feels like it's slamming into gear.

Yesterday, the Check Engine Light came on, and when I scanned it, I got P0700 (Transmission Control System Malfunction) and P0705 (Transmission Range Sensor Circuit Malfunction (PRNDL Input)) codes. The car also occasionally goes into a 'limp mode' where it won't shift past a certain gear, and power is significantly reduced.

I'm worried about potential transmission damage. Has anyone experienced these codes or similar shifting problems with their newer Escape? What was the fix?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 2:23 AM

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ClearTheCode admin answer:

The P0700 and P0705 codes on your 2020 Ford Escape indicate a problem with the Transmission Control System and specifically the Transmission Range Sensor (TRS). The harsh shifting and limp mode are direct symptoms of these issues.

Here's what these codes suggest and what to look into:

  1. P0700 - Transmission Control System Malfunction: This is a generic code that tells you the Transmission Control Module (TCM) has detected a fault within the transmission system. It's often accompanied by more specific codes, like your P0705, which pinpoint the actual problem.
  2. P0705 - Transmission Range Sensor Circuit Malfunction (PRNDL Input): This code is much more specific. The Transmission Range Sensor, also known as the neutral safety switch or PRNDL switch, tells the TCM what gear the transmission is currently in (Park, Reverse, Neutral, Drive, Low). If this sensor is faulty or its circuit has an issue, the TCM receives incorrect or no information, leading to shifting problems, harsh engagement, and potentially limp mode.

Common Causes:

  • Faulty Transmission Range Sensor (TRS): This is the most direct cause for P0705. The sensor itself can fail internally.
  • Wiring Harness Issues: Damaged, corroded, or loose wiring and connectors leading to the TRS can interrupt the signal to the TCM.
  • Contaminated Transmission Fluid: While less likely to directly cause a P0705, extremely dirty fluid can affect sensor operation or lead to other transmission issues that manifest similarly.
  • Internal Transmission Problem: In rare cases, an internal mechanical issue could cause the TRS to report incorrect data, but typically the sensor itself is the culprit.

What to Check:

  • Visual Inspection: Check the wiring harness and connector for the TRS for any visible damage, corrosion, or loose connections. Ensure it's securely plugged in.
  • Fluid Level and Condition: Verify the transmission fluid level is correct and that the fluid isn't excessively dark or burnt-smelling. Low fluid can cause shifting issues.

When to See a Shop: Given the harsh shifting and limp mode, this is a critical issue that needs prompt attention. While a visual check of the wiring is a good first step, diagnosing and replacing a TRS often requires specific tools and knowledge, especially if it's located inside the transmission. A professional technician can accurately diagnose the sensor, check the wiring with a multimeter, and ensure there are no underlying transmission issues. Driving extensively in limp mode or with severe shifting problems can cause further damage to the transmission.

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