P2316Ignition Coil F Primary Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2316 means the coil F control line, cylinder 6, sits at a voltage it should not have while the module switches it – a short to supply or a fault inside the coil. In VW's 2014 Touareg tables the high threshold is a signal voltage above about 5.1–7.0 V. GM's 2019 table for the supercharged LT5 V8 in the Corvette checks the line with the driver switched on, accepts it only if no path below 100 ohms to supply exists, and rates the result Type B: 50 failed checks in 63 and two trips before the MIL comes on. Saab's 9-5 2.8 V6 sets P2316 after 4 s or 30 s in total within 400–5,000 rpm, and notes that the ignition coil could also log misfire P0300 or P0306. If the fault is intermittent, wiggling the harness while watching the cylinder 6 misfire counter helps find it.
- What you may notice
- Check engine light on
- Misfire on cylinder 6, P0306 may also be stored
- Intermittent stumbling
- Likely causes
- LikelyCoil F control wire shorted to a supply line
- PossibleInternal short in coil F
- PossibleIntermittent contact in the harness near coil F
- RareEngine module driver defective
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.