Auto Repairing 2006 Ford Taurus Se Integrated Ignition Coil Pack A, B, Or C Failure
This pinpoint test is intended to diagnose the following: ignition coil packs (12029) ignition coil harness ign start/run circuit to coil packs powertrain control module (pcm) (12a650) pinpoint test schematics and connectors for pcm connector views or reference values, refer to reference values . Je2 determine which coil is not firing properly note: electronic ignition engine timing is entirely controlled by the pcm. Electronic ignition timing is not adjustable. Do not attempt to check base timing. You will receive false readings. Determine which coil is not firing properly using the information from pinpoint test jb or a dtc and the table at the beginning of this pinpoint test. Record the suspect cylinder, coil and pcm pin number from the table. Is the suspect cylinder number, coil driver and pcm pin number recorded? Yes go to je3. No to obtain the required information, repeat step je1. Je3 dtc p0351, p0352, p0353: check ign start/run voltage to the coil pack disconnect the suspect coil, as determined from the table. Key on, engine off. Measure the voltage between the ign start/run circuit at the coil pack harness connector and ground.
Is the voltage greater than 10 volts? No the ign start/run has a circuit concern. Check the condition of the related fuses/fuse links. If ok, repair the open circuit. If the fuse/fuse link is damaged, go to check the ign start/run circuit for a short to ground. Je4. Repair as necessary. Carry out the misfire monitor drive cycle. Refer to on board diagnostic (obd) drive cycle . Clear the dtcs. Repeat the self-test. Yes je4 check the functionality of the suspect coil driver (cd) circuit key in off position. Connect a test lamp between ign start/run and the suspect cd circuit (determined from the table) at the coil pack harness connector. Locate and activate the fuel inertia switch to disable the fuel pump. Observe the test lamp while cranking the engine. Does the test lamp blink consistently? Yes go to je8. Je5 check the suspect cd circuit for an open in the harness key in off position. Disconnect the pcm. Measure the resistance of the suspect cd circuit between the pcm harness connector pin (as determined from the table) and the coil pack connector. Is the resistance less than 5 ohms?
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