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P0354 on Lincoln Aviator

Ignition Coil D Primary/Secondary Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0354 specifically for the Lincoln Aviator (2020–2026, 3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP)).

Verified OEM Telemetry & Field Repair Tree
Lincoln Aviator2020–2026
Lincoln Aviator
SUV3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Aviator 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 Lincoln Model:
Diagnose P0354 on Specific Aviator Model Year:

1. Symptoms of P0354 on Lincoln Aviator

When the Engine Control Module (ECM/PCM) on your Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP)) logs fault code P0354, drivers commonly observe:

Flashing CEL on Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP))
Rough running on Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP))
Loss of power on Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP))
P0304 code on Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP))
Lincoln Aviator OBD-II Port Location
The 16-pin diagnostic connector is located Driver lower kick panel near door release assembly. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Lincoln Aviator

Historical warranty claims and technical repair bulletins for Lincoln Aviator point to the following failure distribution:

55%
Dead Cylinder 4 ignition coil (Lincoln OEM Part)
25%
Wiring damage (Lincoln OEM Part)
12%
Corroded connector (Lincoln OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Lincoln Aviator.

3. Step-by-Step DIY Repair Guide for Lincoln Aviator

01
Test Coil with Swap Method

Swap Coil 4 to Cylinder 1. on the Lincoln Aviator equipped with 3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP).

Required Tool: 10mm Socket
02
Replace Coil 4

Install new OEM coil pack. on the Lincoln Aviator equipped with 3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP).

Required Tool: Socket Set
03
Clear DTCs

Clear memory and road test. on the Lincoln Aviator equipped with 3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Lincoln Aviator (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 Lincoln Aviator.

$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.

Compare OEM & Aftermarket Replacement Sensors for Lincoln AviatorVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
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Other Common Fault Codes on Lincoln Aviator

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Lincoln Aviator:

4. Lincoln Aviator P0354 FAQs

What causes code P0354 to trigger on a Lincoln Aviator?

On the Lincoln Aviator (3.0L Twin-Turbo EcoBoost V6 (400HP) / Grand Touring PHEV (494HP)), P0354 is most frequently caused by Dead Cylinder 4 ignition coil or Wiring damage.

Where is the OBD-II port located on my Lincoln Aviator?

On the Lincoln Aviator, the 16-pin DLC diagnostic connector is located Driver lower kick panel near door release assembly. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Lincoln Aviator 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.