P0354
High SeverityIgnition Coil D Primary/Secondary Circuit
Ignition System
What Does P0354 Mean?
Coil on cylinder 4 fault.
Common Fix
Replace ignition coil
Estimated Cost (DIY)
$20 - $80
Common Causes
How to Diagnose P0354
- 1Swap coil
- 2Check wiring
- 3Replace
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0354 to pinpoint the cause before buying parts.
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Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0354.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
Related Symptoms
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Open the exact vehicle hub grounded by OEM manual evidence related to P0354.
Open the exact vehicle hub grounded by OEM manual evidence related to P0354.
Exact Repair Workflows
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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.
Related Repair Guides
If your vehicle has triggered P0354, these DIY repair guides may help:

