2014-2019 Ford Fiesta Hood Latch: Solving the Random Alarm and 'Hood Ajar' Warning
This guide explains the common failure of the hood latch sensor that causes random alarms and dashboard warnings, and how to diagnose and replace the assembly.
- The most common failure is the internal sensor, which causes random alarms and a 'Hood Ajar' warning light.
- This part is NOT the same as the one covered by the major recall for Ford Fiesta side door latches.
- Replacement is simple, requiring only a 10mm wrench and about 30 minutes.
- When buying used, prioritize the '-B' revision (D2BZ-16700-B) and carefully inspect the electrical connector for corrosion.
Symptoms of a Failing 2014-2019 Ford Fiesta Hood Latch
A problem with the hood latch assembly often presents as an electrical issue rather than a mechanical one. The internal sensor is the most common point of failure.
1. Car Alarm Randomly Goes Off
This is the most frequently reported symptom. A faulty or corroded hood latch sensor incorrectly signals to the car's computer that the hood has been opened, triggering the anti-theft alarm, often at random times like overnight. This happens because moisture and road debris can compromise the switch, causing it to send intermittent false signals.
2. 'Hood Ajar' or 'Bonnet Open' Warning on Dash
You may see a persistent or intermittent warning light or message on your instrument cluster indicating the hood is open, even when it is securely shut. This is a direct result of the faulty sensor failing to detect that the hood is closed.
3. Hood Fails to Latch Securely
The mechanical part of the latch can also fail. You might find that the hood no longer 'clicks' shut or pops back up after being pushed down. This can be caused by rust, dirt, or a broken spring within the latch mechanism itself. This is a serious safety issue, as the hood could fly open while driving.
4. Hood is Difficult to Open
If the internal mechanism is seized due to rust or if the release cable has stretched, you may find it difficult or impossible to open the hood by pulling the release lever inside the car. In some cases, the lever may feel loose with no tension at all.
Clarification on Recalls: Ford issued NHTSA Recall 20V-177 (Ford recall 20S15) for certain 2014-2015 Ford Fiestas concerning faulty side door latches that could allow a door to open while driving. This recall does NOT apply to the hood latch. There are no widespread recalls specifically for the hood latch assembly on these vehicles.
Buying a Used Hood Latch for Your Ford Fiesta
A used OEM hood latch can be a cost-effective solution, but careful inspection is key due to the common sensor failure.
What to Check Before You Buy:
- Electrical Connector: Look closely at the electrical connector and its pins. The pins should be clean, straight, and free of any green or white corrosion. A corroded connector is a major red flag.
- Mechanical Action: Using a screwdriver, manually operate the latch mechanism. It should move smoothly and snap back into place with authority. If it feels stiff, gritty, or sluggish, it may be rusted internally.
- Check for Rust: Inspect the entire assembly for signs of rust, especially around the spring and the area where the sensor is housed. A part from a vehicle in a dry, salt-free climate is always a better choice.
- Sensor Housing: Ensure the plastic housing for the sensor and connector is not cracked or damaged, which would allow moisture to enter.
- Part Numbers: The original part number was D2BZ-16700-A, which was later superseded by an improved version, D2BZ-16700-B. While both will fit, the '-B' version is the more desirable and robust part. If possible, choose the '-B' revision.
Cost Breakdown for Hood Latch Replacement
The cost to replace the hood latch can vary, but it is generally an inexpensive repair.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Dealer) | $98 - $102 |
| New OEM (Online) | $70 - $75 |
| Used OEM | $35 - $60 |
| Shop Labor | $50 - $75 |
| Total Professional Replacement | $145 - $170 |
Installation Guide
Replacing the hood latch on a 2014-2019 Fiesta is a straightforward job that can be done with basic tools.
- Difficulty: 2 out of 5
- Estimated Time: 0.5 hours
- Tools Needed: 10mm wrench or socket
Step-by-Step Replacement:
- Disconnect the Sensor: Locate the electrical connector on the side of the latch assembly. Squeeze the tab and pull the connector off.
- Disconnect the Release Cable: Pop the cable housing out of its clip on the latch. Then, maneuver the metal cable end out of its keyhole slot.
- Remove the Bolts: Using a 10mm wrench, remove the two bolts holding the latch to the radiator support. Hold onto the latch as you remove the final bolt to prevent it from falling.
- Install the New Latch: Loosely thread the two 10mm bolts into the new latch. For adjustment, it's best to push the latch all the way up in its slotted holes before fully tightening the bolts.
- Reconnect Cable and Sensor: Re-insert the release cable end and snap the housing into its clip. Plug the electrical connector back in until it clicks.
- Test: Close the hood to ensure it latches securely and check that the 'Hood Ajar' warning light is off. Lock the car and wait to see if the alarm issue is resolved.
Pro Tip: Some owners attempt to bypass a faulty sensor by cutting the connector and shorting the two wires together with a small piece of wire or a staple. This permanently tells the car the hood is closed. While this can stop the alarm and warning light, it disables a key feature of your anti-theft system. Replacing the latch is the correct and recommended repair.
Frequently Asked Questions (FAQ)
Why does my Ford Fiesta alarm keep going off for no reason?
The most common cause is a faulty hood latch sensor. The sensor corrodes or fails, sending a false signal that the hood is being opened, which triggers the alarm. Other less common causes can include failing door latch sensors or a weak vehicle battery.
Can I just clean or bypass the hood latch sensor?
Some owners have temporary success cleaning the switch with electrical contact cleaner. Others bypass it by connecting the two wires in the harness plug, which tricks the system into thinking the hood is always closed. However, this disables the hood-open detection for the alarm. The most reliable and safest solution is to replace the entire latch assembly.
Is the 2014-2019 Fiesta hood latch part of a recall?
No. While there was a significant recall (NHTSA 20V-177) for the side door latches on 2014-2015 Fiestas, the hood latch was not included and has not been subject to a similar safety recall.
What is the difference between Ford part D2BZ-16700-A and D2BZ-16700-B?
D2BZ-16700-B is the newer, superseded part number that replaced D2BZ-16700-A. It is considered an updated and potentially more durable version of the original design. Both parts will fit and function, but if you have a choice, the '-B' version is preferable.
Technical Specifications
OEM Part Numbers: D2BZ-16700-A D2BZ-16700-B
Integrated hood ajar sensor for vehicles with anti-theft alarm systems.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Ford Fiesta:
- 🛍️ Shop This Part
- Symptoms of a Failing 2014-2019 Ford Fiesta Hood Latch
- 1. Car Alarm Randomly Goes Off
- 2. 'Hood Ajar' or 'Bonnet Open' Warning on Dash
- 3. Hood Fails to Latch Securely
- 4. Hood is Difficult to Open
- Buying a Used Hood Latch for Your Ford Fiesta
- What to Check Before You Buy:
- Cost Breakdown for Hood Latch Replacement
- Installation Guide
- Step-by-Step Replacement:
- Frequently Asked Questions (FAQ)
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