MazicBay Diagnostics
MAZICBAYDiagnostics
FTC Reader Disclosure: When you purchase or register through links on our site, we may earn an affiliate commission at no extra cost to you. Read our Editorial & Advertising Policy.
P0352FordFord Explorer HubAll Ford P0352Critical Severity

P0352 on Ford Explorer

Ignition Coil B Primary/Secondary Circuit Malfunction

Factory diagnostic protocol and troubleshooting wire for fault code P0352 specifically for the Ford Explorer (2020–2026, 2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP)).

Verified OEM Telemetry & Field Repair Tree
Ford Explorer2020–2026
Ford Explorer
SUV2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Explorer 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 P0352 On Another Ford Model:
Diagnose P0352 on Specific Explorer Model Year:

1. Symptoms of P0352 on Ford Explorer

When the Engine Control Module (ECM/PCM) on your Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP)) logs fault code P0352, drivers commonly observe:

Flashing CEL on Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP))
Violent engine shudder on Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP))
Major power loss on Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP))
Accompanied by P0302 on Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP))
Ford Explorer OBD-II Port Location
The 16-pin diagnostic connector is located Lower steering column dash trim. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Ford Explorer

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

55%
Dead Cylinder 2 ignition coil (Ford OEM Part)
25%
Damaged harness wiring (Ford OEM Part)
12%
Loose connector (Ford OEM Part)
8%
PCM coil driver fault (Ford OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Ford Explorer.

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

01
Perform Coil Swap Test

Swap Coil 2 with Coil 1. If code becomes P0351, replace coil. on the Ford Explorer equipped with 2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP).

Required Tool: 10mm Socket, Scanner
02
Check Harness Voltage

Verify 12V power and trigger pulse. on the Ford Explorer equipped with 2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP).

Required Tool: Multimeter
03
Install New Ignition Coil 2

Replace Coil B with OEM part. on the Ford Explorer equipped with 2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP).

Required Tool: 10mm Socket, Spark Plug Socket
04
Clear Codes and Verify

Clear DTCs and confirm zero misfires. on the Ford Explorer equipped with 2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP).

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

Equipment for Diagnosing Ford Explorer (P0352)

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 Explorer.

$36 – $68 Prime
Check Price on Amazon
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
View on Amazon
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 Ford ExplorerVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
Find Parts on Amazon
* As an Amazon Associate, MazicBay earns from qualifying purchases. Prices & availability subject to change.

Other Common Fault Codes on Ford Explorer

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

4. Ford Explorer P0352 FAQs

What causes code P0352 to trigger on a Ford Explorer?

On the Ford Explorer (2.3L EcoBoost 4-Cyl (300HP) / 3.0L Twin-Turbo EcoBoost V6 (ST 400HP)), P0352 is most frequently caused by Dead Cylinder 2 ignition coil or Damaged harness wiring.

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

On the Ford Explorer, the 16-pin DLC diagnostic connector is located Lower steering column dash trim. 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 Explorer with code P0352?

No. Cylinder 2 ignition coil has failed. Given that P0352 carries a Critical severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.