P2317 — Ignition Coil "F" Secondary Circuit

P2317 — Ignition Coil "F" Secondary Circuit. A fault in the ignition system. Short, gentle driving to a shop is usually possible. Typical causes: damaged coil wiring or connector, faulty ignition control circuit in the ECM, failed ignition coil or coil pack.

powertrain (engine/transmission)

Is it safe to drive?

Drive with caution Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P2317 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the ignition system for damage, corrosion, chafing or poor contact.
  4. Subsystem check Swap the coil to another cylinder and see if the fault code follows it.
  5. Subsystem check Inspect spark plugs for wear, oil or carbon tracks and check plug gaps.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2317 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2317 (parts and labor, USD, independent shop rates): Repair coil wiring or connector: $80–$250; Replace an ignition coil: $150–$380; Replace spark plugs: $90–$250. Overall, fixing P2317 usually costs between $80 and $380. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

How do I diagnose P2317 myself?

Start with a scan: confirm P2317, save the freeze frame and note any companion codes. Then inspect the wiring and connectors related to the ignition system, and verify the suspect component against live data before buying parts.

What are the symptoms of P2317?

Drivers most often notice: increased fuel consumption, misfires under load or at idle, loss of power and jerking, hard starting, especially in damp weather.

Is it safe to drive with P2317?

Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.

Will P2317 clear itself?

Sometimes P2317 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What is the most common cause of P2317?

The most common causes are: damaged coil wiring or connector, faulty ignition control circuit in the ECM, failed ignition coil or coil pack.

What does P2317 mean?

Seeing P2317 on your scanner? The control unit has caught the ignition system operating outside its calibrated window. The formal description is “Ignition Coil "F" Secondary Circuit”, and the code is grouped under powertrain (engine/transmission) faults.

To set P2317, the control module compares live readings of the ignition system against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

Common symptoms of P2317

  • increased fuel consumption
  • misfires under load or at idle
  • loss of power and jerking
  • hard starting, especially in damp weather
  • Check Engine Light on

What causes P2317?

  • faulty ignition control circuit in the ECM
  • worn spark plugs or wrong plug gap
  • failed ignition coil or coil pack
  • damaged coil wiring or connector
  • moisture or oil in the spark plug wells

How to diagnose P2317

  1. Connect an OBD2 scanner, confirm P2317 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the ignition system for damage, corrosion, chafing or poor contact.
  4. Swap the coil to another cylinder and see if the fault code follows it.
  5. Inspect spark plugs for wear, oil or carbon tracks and check plug gaps.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2317 does not return.

How to fix P2317

Start with the cheapest and most common causes before replacing expensive parts:

  • Repair coil wiring or connector — $80–$250
  • Replace an ignition coil — $150–$380
  • Replace spark plugs — $90–$250

How much does it cost to fix P2317?

Repair cost depends on which component actually failed. Typical scenarios for P2317 (parts and labor, USD, independent shop rates):

  • Repair coil wiring or connector: $80–$250
  • Replace an ignition coil: $150–$380
  • Replace spark plugs: $90–$250

Overall, fixing P2317 usually costs between $80 and $380. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P2317?

Drive with caution and avoid load. Ignition faults cause misfires that quickly overheat and destroy the catalytic converter; if the Check Engine Light flashes, stop and fix it first.

Related OBD2 codes