Igniton coil f p0356 primary or secondary circut malfunction what does this mean

P0356 is a diagnostic trouble code (DTC) for "Ignition Coil F Primary/Secondary Circuit Malfunction"
being honest it is a generic answer clear the codes and drive it to see if the code comes back as you have no idea how long the code has been stored for.

Code 356 means there is a problem with coil number 6. So I assume you have a V6 engine.
The code means the engine computer is not getting a return signal from that coil. The problem could be the coil or the wiring.
You could swap coil number 6 with a different cylinder and see if the problem transfers to that cylinder.

P0352 Ignition Coil Primary Secondary Circuit Malfunction Is your vehicle misfiring ? What make , model an year vehicle ? Just had a ford fusion with this problem on three cylinders . p0353 , p0355 an p0356 . He never had the spark plugs changed , the plug gap was way more then it should have been , caused the driver for one cylinder to short out inside the engine computer . $ 800.00 from ford. The coil is bad or the circuit or the PCM -engine computer is bad .

P0303 Cylinder 3 Misfire Detected
P0316 Engine Misfire Detected on Startup (First 1000 Revolutions)
P0354 Ignition Coil "D" Primary/Secondary Circuit
P0355 P0356 Ignition Coil "F" Primary/Secondary Circuit
Hope them can help you!
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Multi-Diag Access J2534

This is the only info I have found


P0356 Ignition Coil F Primary/Secondary Circuit Malfunction

P0354 - Ignition Coil D Primary/Secondary Circuit Malfunction.

Description of DTC:
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms:
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
- Check Engine Light On
- No spark

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solutions:
- If damage, repair ignition coil circuit
- Replace ignition coil
- Replace PCM or ECM


P0355 - Ignition Coil E Primary/Secondary Circuit Malfunction.

P0356 - Ignition Coil F Primary/Secondary Circuit Malfunction.

Does the vehicle have coil on plug ignition or coilpack ? And it's not primary or secondary coil malfunctioning It's primary or secondary circuit . I'm assuming it has a coil pack because you say plug wires.
P0350 - Ignition Coil (Undetermined) Primary/Secondary Circuit Malfunction Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in the PCM).

• Open or short in the Ignition START/RUN circuit.
• Open coil driver circuit.
• Coil driver circuit shorted to ground.
• Damaged coil.
• Damaged PCM.
• Coil driver circuit shorted to VPWR.

P0351 - Ignition Coil A Primary/Secondary Circuit Malfunction See the description for DTC P0350. See the possible causes for DTC P0350.
Pull the spark plugs out an look at them , check the gap ,if too wide replace them . If the spark plug gap gets too worn ,the spark won't jump the gap. It will find the least resistance path to ground ,and it will do it inside the coil . Going from the secondary circuit back to the primary coil an to ground through the PCM - engine computer . The PCM has transistors inside that open an close the primary side to ground ,this builds up a magnetic field around the secondary inducing high voltage spark . Well this can short out the transistor inside the PCM . Most of the time that's what these type codes mean . The PCM would need to be replaced an programmed . This can also damage the catalytic converter. Your best bet , take your vehicle to a qualified repair shop.

bad ground connection for coils or harness is bad for coils

Remove and Replace the Electronic Ignition Coil Pack.