P0354
High SeverityIgnition Coil D Primary/Secondary Circuit
Ignition System
P0354 — Instant Answer
Ignition Coil D Primary/Secondary Circuit
Severity: HIGH SEVERITY
Meaning: Coil on cylinder 4 fault.
Safe to drive? NO if CEL is flashing. YES with caution if solid, but repair this week.
Estimated repair cost: $20 - $80
Most common causes:
- 1. Failed coil (35-45% of cases)
- 2. Wiring (10-25% of cases)
Common Causes
How to Diagnose P0354
- 1Swap coil
- 2Check wiring
- 3Replace
OEM Procedures for P0354
P0354 affects the Ignition Coil. Found 34 OEM service manual procedures.
Ignition Coil
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Ignition Coil & ICM Replacement (HVS) - Installation
Showing 8 of 34 procedures
OEM Diagnostic Flowchart
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0354.
Related Symptoms
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Open the exact vehicle hub for a repair workflow commonly associated with P0354.
Open the exact vehicle hub for a repair workflow commonly associated with P0354.
Open the exact vehicle hub for a repair workflow commonly associated with P0354.
Open the exact vehicle hub for a repair workflow commonly associated with P0354.
Exact Repair Workflows
Browse →Open the exact repair flow most commonly associated with P0354 on this vehicle.
Open the exact repair flow most commonly associated with P0354 on this vehicle.
Open the exact repair flow most commonly associated with P0354 on this vehicle.
Open the exact repair flow most commonly associated with P0354 on this vehicle.
Open the exact repair flow most commonly associated with P0354 on this vehicle.
Open the exact repair flow most commonly associated with P0354 on this vehicle.
Related Codes
Frequently Asked Questions
- What causes coils to fail early?
- Running with worn spark plugs, heat soak from exhaust, and oil leaks onto coil boots.
- Can oil on a coil cause misfires?
- Yes — oil from a leaking valve cover gasket can deteriorate the coil boot insulation.
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Author & Review
Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.
This guide was drafted with AI assistance and reviewed for accuracy by a human editor.
Last updated: 2026-05-07