P2112 on 2014-2016 Ford Transit Connect: Throttle Stuck Closed Causes and Fixes

What's Unique About the 2014-2016 Ford TRANSIT CONNECT

The 2014-2016 Ford Transit Connect, along with many other Ford models from this era using the same family of engines (2.5L I-4 and 1.6L EcoBoost), is known for a high failure rate of the electronic throttle body. Ford has issued multiple Technical Service Bulletins (TSBs) that include the P2112 code, such as TSB 16-0139, which directly addresses this issue. The failure is often due to contamination of the internal motor contacts or general electronic failure within the sealed unit.

Diagnostic Flowchart

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

Symptoms You May Notice

• Illuminated Powertrain Malfunction (Wrench) light
• Check Engine Light is on
• Significant loss of engine power
• Vehicle enters 'limp home' mode with limited RPM and speed
• Poor or no acceleration
• Unresponsive throttle pedal (gas pedal has no effect)
• Engine may stall, especially when trying to accelerate from a stop
• Rough or erratic idle

Most Likely Causes

1. Failed Electronic Throttle Body Assembly 🔴 High Probability → Shop Fuel Injection Throttle Body This is a well-documented issue for this platform, as confirmed by Ford's own Technical Service Bulletins (TSB 16-0139, TSB 16-0163). The internal motor, gears, or position sensor within the sealed throttle body unit fails over time, often due to internal contamination. This is the most likely cause by a wide margin.
   How to confirm: With the intake hose removed, have a helper turn the key to 'ON' (engine off) and press the accelerator pedal. Observe the throttle plate for movement. If it doesn't move, moves erratically, makes grinding/buzzing noises, or slams shut unexpectedly, the unit has failed. 🎬 Watch: How to diagnose a stuck closed throttle actuator. A scan tool may also show a discrepancy of more than a few percent between the commanded throttle position and the actual throttle position.
   Typical fix: Replace the entire throttle body assembly. Aftermarket units are widely available, but using an OEM Motorcraft part is often recommended to avoid premature failure of the replacement part. A throttle body relearn procedure is required after installation.
   Est. part cost: $70 - $250
2. Carbon Buildup in Throttle Body 🟡 Medium Probability → Shop Fuel Injection Throttle Body Direct injection engines, like the 1.6L EcoBoost, and even port-injected engines can accumulate carbon behind the throttle plate, causing it to stick. While cleaning can sometimes resolve the issue temporarily, the underlying electronic failure is often the root cause, and the problem may return.
   How to confirm: Remove the air intake hose from the throttle body and visually inspect the throttle bore and plate for a thick, black coating of carbon. Manually (with the engine off) try to move the plate to feel for any binding or sticking.
   Typical fix: Clean the throttle body bore and plate thoroughly with a dedicated throttle body cleaner and a soft cloth or brush. If this does not resolve the limp mode and code, the throttle body requires replacement.
   Est. part cost: $5 - $15
3. Wiring or Connector Issue ⚪ Low Probability While less common than outright throttle body failure, wiring harnesses in the engine bay are subject to heat and vibration. Some Ford platforms of this era had issues with wiring harness chafing.
   How to confirm: Inspect the wiring harness and connector going to the throttle body for any signs of damage, corrosion, or loose pins. Use a multimeter to check for proper voltage and ground at the connector according to the vehicle's wiring diagram.
   Typical fix: Repair the damaged section of the wiring harness or clean/replace the connector.
   Est. part cost: $10 - $50

Rare But Worth Checking

• Faulty Powertrain Control Module (PCM): This is very rare and should only be considered after all other possibilities, including a faulty replacement throttle body, have been eliminated. A PCM failure will usually be accompanied by multiple other seemingly unrelated error codes.

Diagnosis Steps

1. Connect an OBD-II scanner to confirm the P2112 code and check for any other related codes like P2111 or P2119.
2. Inspect the wiring harness and electrical connector at the throttle body for any visible damage, corrosion, or loose connections.
3. Remove the air intake duct from the throttle body.
4. Visually inspect the throttle bore and plate for heavy carbon buildup or any foreign debris that could cause it to stick.
5. If significant carbon is present, clean it thoroughly using throttle body cleaner and a soft rag. Do not spray harsh chemicals directly onto the electrical components.
6. If the throttle body is clean, test its electronic function. With the key in the 'ON' position (engine off), have a helper slowly press and release the gas pedal. Watch the throttle plate to see if it opens and closes smoothly. Listen for any unusual grinding or buzzing sounds.
7. If the throttle plate does not move, moves erratically, or if the problem persists after cleaning, the throttle body assembly is faulty and needs to be replaced.
8. After replacing the throttle body, clear the codes and perform a throttle body relearn procedure. This is critical for proper idle and performance.
9. Throttle Relearn Procedure: Disconnect the negative battery terminal for at least 15 minutes to clear the PCM's adaptive memory. Reconnect the battery. Turn the key to the 'ON' position (engine off) without starting the engine and wait for one minute. Start the engine and let it idle for 10-15 minutes to allow it to reach full operating temperature and relearn idle trims. Finally, drive the vehicle at various speeds to allow the PCM to learn shift points and load values.
🎬 Watch: Four ways to perform a throttle body relearn.

Parts You'll Likely Need

• Electronic Throttle Body Assembly (OEM #2.5L Engine: 7S7Z-9E926-A (or superseded AT4Z-9E926-B) | 1.6L EcoBoost Engine: BE8Z-9E926-C) — This is the primary cause of code P2112 on this vehicle due to a high rate of internal electronic or mechanical failure, as acknowledged by Ford TSBs.
  Trusted brands: Motorcraft, Bosch, Dorman, Standard Motor Products
  OEM price range: $180-$250
  Aftermarket price range: $70-$150

Related Codes That Often Appear With This One

• P2111 — This code means 'Throttle Actuator Control System - Stuck Open'. It's common to see both P2111 and P2112 as the throttle body begins to fail erratically, sometimes sticking open and sometimes sticking closed. TSB 16-0139 explicitly lists both codes together.
• P2119 — This code relates to 'Throttle Actuator Control Throttle Body Range/Performance'. It indicates a general problem with the throttle body's ability to move correctly and is often stored alongside P2111 or P2112, as noted in TSB 16-0139.

Technical Service Bulletins (TSBs) & Recalls

• TSB 16-0139: Intermittent loss of power, wrench lamp on, with DTCs P2111, P2112, and/or P2119.
• TSB 16-0163: A comprehensive TSB that includes P2112 among many other codes requiring a specific service procedure.

Platform-Specific Known Issues

• TSB 16-0139: Issued by Ford for 2016 models with either the 1.6L or 2.5L engine, this bulletin directly addresses an intermittent loss of power with the wrench light on and DTCs P2111, P2112, and/or P2119. It directs technicians to replace the electronic throttle body.
• TSB 16-0163: This bulletin for 2014 models lists P2112 among a wide range of other DTCs. It also points to a service procedure for correction, reinforcing that this is a known issue requiring throttle body replacement.
• Owner Experience: Owners on forums like Reddit and Ford-specific forums frequently report sudden loss of power while driving, with the wrench light illuminating. After getting the P2112 code, replacement of the throttle body is the universally accepted fix. Many DIY-ers report the job takes less than an hour.

Mechanic-Grade Diagnostic Values

• Throttle Angle Deviation (Live Scan Tool Data) — expected: The actual throttle position (TP_ACT) should closely mirror the commanded throttle position (TP_CMD).. Failure: Code P2112 sets if the measured throttle angle is more than 6 degrees lower than what the PCM is commanding.
• Throttle Position Sensor (TPS) Voltage Sweep — expected: Using a multimeter to back-probe the signal wire, voltage should sweep smoothly from approximately 0.5V at closed throttle to 4.5V at wide-open throttle.. Failure: Any sudden voltage drops, spikes, or dead spots during the sweep indicates a faulty sensor within the throttle body assembly.

Scan Tool Commands That Help

• Ford IDS (or equivalent professional scanner): Reset KAM (Keep Alive Memory) — This function should be performed after replacing the throttle body to clear the PCM's adaptive learning tables related to the old, failing part. This helps the system adapt to the new component correctly.

Wiring & Ground Locations

• G104 — Lower left rear of the engine (on 1.6L Turbo models, location similar on 2.5L).. This is a primary engine ground point. A poor connection here can cause a variety of sensor and actuator issues, including erratic throttle body operation. Verifying this ground is clean and tight is a valid, though less common, diagnostic step.
• PCM Ground Pins — At the Powertrain Control Module connector. On some Ford models, these are pins 96, 97, 98, and 99.. The PCM relies on these dedicated grounds to accurately interpret sensor data and control actuators like the throttle body. A resistance check from these pins to a chassis ground should show very low resistance (e.g., under 1 ohm).

OEM Part Supersession History

• 9L8Z-9E926-A, DS7Z-9E926-A → DS7Z-9E926-D — Standard part revision and improvement by the manufacturer.
  Heads up: This part is for the 2.5L engine. Do not use part numbers like AT4Z-9E926-B, which are for different Ford engines (e.g., 3.5L/3.7L V6) but may be incorrectly cross-referenced by some vendors.