P0365 on 2020-2021 Ford Escape: Causes and Fixes for Camshaft Sensor 'B' Circuit

What's Unique About the 2020-2021 Ford ESCAPE

For this specific generation of Ford Escape, which is built on Ford's C2 platform, P0365 is frequently not a simple sensor failure. Ford has issued multiple Technical Service Bulletins (TSBs) pointing to a specific engine wiring harness (part family 14290) that is prone to chafing against the steering shaft or upper brake pedal mount. This damage can cause a short or open circuit, triggering P0365 and often a wide array of other seemingly unrelated electrical fault codes. This known issue makes a thorough harness inspection the most critical first step in diagnosis, a step often missed by those who immediately replace the sensor.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Check Engine Light is on
• Engine runs rough or misfires
• Difficulty starting the engine, or no-start condition
• Engine may stall unexpectedly, especially at low speeds
• Poor acceleration and reduced engine power
• Increased fuel consumption
• Illuminated ABS or traction control lights (if harness chafe affects other circuits)

Most Likely Causes

1. Chafed 14290 Engine Wiring Harness 🔴 High Probability As documented in Ford TSBs #SSM 50245 and #SSM 50116, the harness is routed in a way that it can rub against the steering shaft U-joint or upper brake pedal mount, causing wires to break or short out. This is a known design and assembly issue for this platform.
   How to confirm: Visually inspect the 14290 harness directly above the steering shaft u-joint in the driver's footwell. A flashlight and mirror are essential. Look for any signs of abrasion, exposed copper wires, or damage to the protective loom or tape. The chafe point is often on the sharp metal edge of a bracket.
   Typical fix: Repair the damaged wires using solder and heat shrink or quality butt connectors. Re-wrap the repaired section with Tesa cloth harness tape. 🎬 Watch: Professional techniques to restore and protect your wiring harness. Crucially, secure the harness away from the metal bracket and steering shaft using zip ties to create at least an inch of clearance and prevent future contact.
   Est. part cost: $5-$20 for repair materials, $800+ for a new harness section if damage is severe.
2. Failed Camshaft Position Sensor 'B' (Exhaust) 🟡 Medium Probability Sensors can fail over time due to heat cycles and vibration. Oil leaks from the valve cover can also contaminate the sensor and cause it to fail. However, on this platform, it is less likely than the harness issue.
   How to confirm: After confirming the wiring harness is intact, test the sensor. A simple method is to swap the intake ('A') and exhaust ('B') sensors, as they are often identical parts. Clear the codes and drive. If the code changes to P0340 (Sensor 'A' Circuit), the sensor is bad.
   Typical fix: Replace the Camshaft Position Sensor 'B'. This is typically located on the valve cover, on the side of the engine corresponding to the exhaust manifold.
   Est. part cost: $70-$90
3. Damaged Wiring or Connector at the Sensor ⚪ Low Probability
   How to confirm: Inspect the electrical connector and wiring going directly to the exhaust camshaft position sensor for corrosion, bent pins, oil contamination, or breaks. Ensure the connector clicks securely into place.
   Typical fix: Clean the connector with electrical contact cleaner. Repair any broken wires or replace the connector pigtail.
   Est. part cost: $5-$30

Rare But Worth Checking

• Timing Chain or Phaser Issue: If the timing chain is stretched or a cam phaser is faulty, the camshaft's physical position can be out of sync with the crankshaft, triggering this code. This is less common than electrical faults but possible, and usually accompanied by rattling noises.
• Powertrain Control Module (PCM) Failure: This is extremely rare. The PCM is the car's main computer, and an internal fault could cause it to misinterpret the sensor's signal. All other possibilities, especially the harness chafe, must be exhausted before considering a PCM replacement.

Diagnosis Steps

1. Read all stored fault codes with an OBD-II scanner. Note any other codes that are present, as they can be clues to the harness issue. The presence of codes like P0369 or other unrelated electrical codes increases the likelihood of a harness problem.
2. CRITICAL STEP: Thoroughly inspect the 14290 engine wiring harness. Locate it above the steering shaft U-joint near the upper brake pedal mount inside the driver's side footwell. Use a flashlight and a mirror. Pull gently on the harness to check for slack and inspect all sides for rubbing, chafing, or exposed wires. The contact point is often a sharp metal edge of a nearby bracket.
3. If the harness is damaged, repair the affected wires (soldering is preferred) and protect them with Tesa cloth tape. Secure the harness with zip ties to pull it away from the steering shaft and any metal edges to prevent recurrence. Ensure at least 1 inch of clearance.
4. If the harness is in good condition, proceed to inspect the exhaust camshaft position sensor ('B'). On the 1.5L engine, it is one of two sensors on the top of the valve cover; 'B' (exhaust) is typically toward the rear/firewall side of the engine.
5. Check the sensor's electrical connector for corrosion, damage, or loose pins. Ensure it is free of oil.
6. If the connector is good, test the sensor. You can swap it with the intake sensor ('A') if they are the same part number (they usually are). Clear the codes and see if the fault code changes to P0340. If it does, the sensor you moved is faulty.
7. If the sensor and wiring appear good, check fuse 44 in the engine bay fuse box, as the TSBs note this fuse can blow due to the harness shorting out.
8. If all else fails, the next step would be to check for mechanical timing issues with a professional, though this is less likely.
9. After any repair, clear the fault codes and perform a test drive to ensure the issue is resolved.

Parts You'll Likely Need

• Camshaft Position Sensor (OEM #DU-105 (Motorcraft) / HX7Z-6B288-A (Ford)) — If the wiring harness is not the cause, the sensor itself is the next most likely component to have failed. Both intake and exhaust sensors are typically the same part.
  Trusted brands: Motorcraft, Bosch, NTK
  OEM price range: $70-$90
  Aftermarket price range: $30-$60
• Wiring Repair Supplies — Needed to fix the common chafing issue on the 14290 harness. Includes Tesa cloth harness tape, zip ties, and potentially butt connectors or solder and heat shrink tubing.
  Trusted brands: Tesa, 3M
  OEM price range: $10-$25
  Aftermarket price range: $5-$15

Related Codes That Often Appear With This One

• P0369 — This code indicates an intermittent signal from the same sensor (Camshaft Position Sensor 'B'), which is often triggered along with P0365 by a loose connection or chafing wire.
• P0340 / P0344 — These codes relate to the intake camshaft position sensor ('A'). If the 14290 harness is chafed, it can affect the wiring for both the intake and exhaust sensors, causing multiple codes to appear simultaneously.
• Various other codes (P06A7, P2122, C0040, etc.) — TSB #SSM 50245 lists over 20 potential DTCs that can be caused by the 14290 harness chafing, as it contains circuits for many different engine and chassis components. The presence of seemingly unrelated codes strongly points to the harness issue.

Technical Service Bulletins (TSBs) & Recalls

• SSM 50245: Addresses a chafing wiring harness (14290) causing various electrical DTCs, including P0365.
• SSM 50116: An earlier version of the same bulletin, also pointing to the 14290 harness chafing issue as a cause for P0365 and other codes.

Platform-Specific Known Issues

• TSB #SSM 50245 & #SSM 50116: These bulletins are the most critical piece of information for this code on this vehicle. They state that some 2020-2021 Escapes may exhibit a no start, rough run, or blown fuse 44, and may set DTC P0365 (among many others). The cause is identified as the '14290 harness directly above the steering shaft u-joint' coming in contact with moving parts and chafing. The recommended fix is to inspect, repair, and re-secure the harness.

Mechanic-Grade Diagnostic Values

• Camshaft Position Sensor (3-Wire Hall-Effect) Power Supply Voltage — expected: 4.8 to 5.2 Volts DC (Key On, Engine Off). Failure: Voltage below 4.8V or above 5.2V points to a wiring issue (short/open) or a problem with the PCM's 5V reference circuit.
• Camshaft Position Sensor Ground Circuit Resistance — expected: Near 0 Ohms to a known good chassis ground.. Failure: High resistance indicates a poor ground connection, which can cause erratic sensor signals and trigger false codes.
• Camshaft Position Sensor Signal Wire Voltage (Cranking) — expected: A digital square wave, toggling between approximately 0V and 5V.. Failure: A flat line at 0V or 5V, or no signal at all, indicates a failed sensor or a break in the signal wire.
• VCT Solenoid Resistance — expected: Approximately 5 to 15 Ohms, depending on the specific solenoid.. Failure: A reading of zero Ohms indicates a shorted coil, while an infinite reading (OL) indicates an open coil.

Scan Tool Commands That Help

• Ford IDS (or equivalent bidirectional scanner): VCT Solenoid Command / Test — Use this function when the sensor and wiring have been confirmed good, but the code persists. This command actively energizes the VCT solenoid, allowing a technician to monitor the camshaft's response via live data PIDs (Parameter IDs). A lack of response or slow response indicates a mechanical issue with the VCT solenoid or cam phaser, not an electrical fault with the sensor circuit.

Wiring & Ground Locations

• 14290 Harness Chafe Point — Inside the driver's side footwell, directly above the steering shaft universal joint. The harness can rub on the U-joint itself or a sharp edge of a nearby metal bracket for the brake pedal assembly.. This is the specific location identified in TSBs SSM 50245 and SSM 50116 as the primary cause of P0365 and numerous other electrical codes on this platform.
• Engine Grounds (e.g., G103, G104) — Primary engine and transmission ground points are typically located on or near the shock towers in the engine compartment. Other sensor grounds may be located on the cylinder head or engine block.. A loose or corroded main engine ground can cause unstable voltage across multiple sensor circuits, including the camshaft position sensor, leading to erratic readings and fault codes.

Real Owner Repair Stories

• BroncoSportForum.com user report (2021 Ford Bronco Sport 1.5L (same C2 platform and engine)) — Check Engine Light with codes P0365 and P0369.
  ❌ Tried (didn't work) Replacing the exhaust camshaft position sensor ('B' sensor).
  ✅ What actually fixed it The dealership found the chafed wiring harness exactly as described in the TSBs. The wires were rubbing on a metal bracket near the steering column. The final fix was repairing the damaged wires and securing the harness away from the bracket with a zip tie.

When the Usual Fixes Don't Work

• While replacing the sensor is a common first step, real-world owner experiences for the 2020-2021 Escape and its platform-mate, the Bronco Sport, strongly indicate this is often the wrong approach. One owner replaced the sensor for P0365/P0369, but the codes returned immediately. The actual problem, confirmed by a dealer, was the chafed wiring harness near the steering column as detailed in Ford's TSBs. This highlights that for this specific vehicle, assuming the sensor is bad before a thorough harness inspection is a common and costly misdiagnosis.