Ignition Coil D Secondary Circuit Malfunction
Findings, check these first
- Open coil D secondary
- Failed wire or fouled plug
- Cracked tower
- Corroded terminals
- Over-gapped plug
Standard procedure
- Check the wire, plug and gap
- Test secondary resistance
- Inspect the tower
- Swap to isolate the fault
- Replace the coil if secondary is open
Code lookup
Type a code above, or start from a symptom or a common code.
Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.
Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1363 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1363: Ignition Coil D Secondary Circuit Malfunction
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1363 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1363: Ignition Coil ‘D’ Secondary Circuit Malfunction
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-05.
Report a correction for P1363. Include your vehicle, the issue and a source if you have one.
This fault is part of the Ford fuel and ignition codes guide. It covers the family and the order to check it.