Easy tips

Where are the spark plugs on an ignition coil?

Where are the spark plugs on an ignition coil?

The COP (coil on plug) ignition system is what is used on most modern engines. There is an individual coil for each cylinder that is controlled by the PCM (powertrain control module). It eliminates the need for spark plug wires by putting the coil right above the sparkplug. Two wires are dedicated to each coil.

When to set p0353 ignition coil number 3?

If an open or a short is detected in the driver circuit for coil number 3, a P0353 may set. Also, depending on the vehicle, the PCM may also shut down the fuel injector to the cylinder also.

What to do if your ignition coil is not working?

If you don’t detect any frequency signal from the PCM on the ignition coil driver circuit indicating the PCM is grounding/ungrounding the circuit (or there is no visible pattern on the scope if you have one) then leave the coil disconnected and check for DC voltage on the driver circuit at the ignition coil connector.

What are trouble codes for Jeep Laredo 4.0?

2000 Jeep Grand Cherokee Laredo 4.0 showing trouble codes: P0302, P1391, P0353, P0352, P0351. We originall had only P0302 so we changed plugs, wires, coil, cam and crank sensors, and checked injectors. Now we have all the other codes listed above.

Where is the coil on plug ignition coil?

The COP (coil on plug) ignition system is what is used on most modern engines. There is an individual coil for each cylinder that is controlled by the PCM (powertrain control module). It eliminates the need for spark plug wires by putting the coil right above the sparkplug.

What causes a DTC p0353 ignition coil C?

Potential causes of a P0353 code include: Short to voltage or ground on COP driver circuit Open on COP driver circuit Loose connection at coil or broken connector locks Faulty Powertrain Control Module Is the engine misfiring presently?

If you don’t detect any frequency signal from the PCM on the ignition coil driver circuit indicating the PCM is grounding/ungrounding the circuit (or there is no visible pattern on the scope if you have one) then leave the coil disconnected and check for DC voltage on the driver circuit at the ignition coil connector.

2000 Jeep Grand Cherokee Laredo 4.0 showing trouble codes: P0302, P1391, P0353, P0352, P0351. We originall had only P0302 so we changed plugs, wires, coil, cam and crank sensors, and checked injectors. Now we have all the other codes listed above.

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Ruth Doyle