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P0354

Ford Bronco Hub All Ford P0354Critical Severity

P0354 on Ford Bronco

Ignition Coil D Primary/Secondary Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0354 specifically for the Ford Bronco (2021–2026, 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)).

Verified OEM Telemetry & Field Repair Tree

2021–2026

Ford Bronco

SUV • 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)

Reliability

Sensor Voltage Ref

0.1V – 5.0V Ref

Bronco SAE Mode $01

ECU Network Bus

500 kbps CAN-FD

ISO 15765-4 Compliant

Drivability Status

Not Recommended

Critical urgency level

Est. Repair Cost

$100 - $350 (DIY: $30 - $90)

Parts & Labor DIY

Check P0354 On Another Ford Model:

Ford F-150 Ford F-250 Super Duty Ford Explorer Ford Mustang Ford Bronco Ford Ranger Ford Maverick

Diagnose P0354 on Specific Bronco Model Year:

2025 Bronco P0354 2024 Bronco P0354 2023 Bronco P0354 2022 Bronco P0354 2021 Bronco P0354 2020 Bronco P0354 2019 Bronco P0354 2018 Bronco P0354 2017 Bronco P0354 2016 Bronco P0354 2015 Bronco P0354 2014 Bronco P0354

1. Symptoms of P0354 on Ford Bronco

When the Engine Control Module (ECM/PCM) on your Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)) logs fault code P0354, drivers commonly observe:

Flashing CEL on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Rough running on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Loss of power on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

P0304 code on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))

Ford Bronco OBD-II Port Location

The 16-pin diagnostic connector is located Beneath steering wheel lower shroud. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Ford Bronco

Historical warranty claims and technical repair bulletins for Ford Bronco point to the following failure distribution:

55%

Dead Cylinder 4 ignition coil (Ford OEM Part)

25%

Wiring damage (Ford OEM Part)

12%

Corroded connector (Ford OEM Part)

* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Ford Bronco.

3. Step-by-Step DIY Repair Guide for Ford Bronco

Test Coil with Swap Method

Swap Coil 4 to Cylinder 1. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: 10mm Socket

Replace Coil 4

Install new OEM coil pack. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: Socket Set

Clear DTCs

Clear memory and road test. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: OBD-II Scanner

Recommended Parts & Testing Tools

Equipment for Diagnosing Ford Bronco (P0354)

Prime Fast Delivery & Verified Fitment

OEM Ignition Component

Direct-Fit Laser Iridium Spark Plugs (Set of 4/6)

4.8 / 5.0 (Top Rated)

Pre-gapped iridium spark plugs engineered to restore smooth combustion on Ford Bronco.

$36 – $68 Prime

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Ignition Service Tool

Magnetic Swivel Spark Plug Socket Set

4.8 / 5.0 (Amazon Choice)

360-degree magnetic swivel socket prevents ceramic plug cracks inside deep engine spark wells.

$16.99 Prime

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Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

$99.95 Prime

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Compare OEM & Aftermarket Replacement Sensors for Ford BroncoVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.

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Other Common Fault Codes on Ford Bronco

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Ford Bronco:

P0300Automotive

Random or Multiple Cylinder Misfire Dete...

View Bronco Fix

P0420Automotive

Catalyst System Efficiency Below Thresho...

View Bronco Fix

P0171Automotive

System Too Lean (Bank 1)...

View Bronco Fix

P0128Automotive

Coolant Temperature Below Thermostat Reg...

View Bronco Fix

P0455Automotive

Evaporative Emission Control System Leak...

View Bronco Fix

P0101Automotive

Mass Air Flow (MAF) Sensor Circuit Range...

View Bronco Fix

4. Ford Bronco P0354 FAQs

What causes code P0354 to trigger on a Ford Bronco?

On the Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)), P0354 is most frequently caused by Dead Cylinder 4 ignition coil or Wiring damage.

Where is the OBD-II port located on my Ford Bronco?

On the Ford Bronco, the 16-pin DLC diagnostic connector is located Beneath steering wheel lower shroud. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Ford Bronco with code P0354?

No. Cylinder 4 ignition coil has failed. Given that P0354 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.