Ignition System: MIL On, Ignition Coil DTCs Set – UnderhoodService

Ignition System: MIL On, Ignition Coil DTCs Set

Some 2006 Zephyr; 2006-2008 Fusion and Milan; 2007-2008 MKZ, Edge and MKX; and 2008 Taurus, Taurus X and Sable vehicles built on or before March 1, 2008 and equipped with a 3.0L or 3.5L engine may exhibit a malfunction indicator lamp (MIL) on.

Ford Models:
• 2006-2008 Fusion; 2007-2008 Edge; 2008 Taurus, Taurus X
Lincoln Models:
• 2006 Zephyr; 2007-2008 MKX, MKZ
Mercury Models:
• 2006-2008 Milan; 2008 Sable

Note: This article supersedes TSB 13-4-17 to update the Service Procedure and Part List.

Issue
Some 2006 Zephyr; 2006-2008 Fusion and Milan; 2007-2008 MKZ, Edge and MKX; and 2008 Taurus, Taurus X and Sable vehicles built on or before March 1, 2008 and equipped with a 3.0L or 3.5L engine may exhibit a malfunction indicator lamp (MIL) on with diagnostic trouble codes P0351, P0352, P0353, P0354, P0355 and/or P0356 present in the Powertrain Control Module (PCM) and with one or more damaged ignition coil-on-plug(s).

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Service Procedure
1. Using the IDS scan tool, retrieve continuous memory DTCs. Are DTCs P035X present in the PCM?
No: This article does not apply. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnostics.
Yes: Proceed to Step 2.

2. Remove only the spark plug(s) and ignition coil-on-plug(s) from the affected cylinder(s).

3. Inspect the ignition coil-on-plug(s) that have been removed for cracks and/or signs of heat-related damage. Refer to the above images for examples of damage. Does the ignition coil-on-plug(s) inspected show signs of damage?
Yes: Proceed to Step 4.
No: Replace only the spark plug(s) from the cylinders(s) associated with the P035X DTCs and do not continue with this bulletin. Refer to the PC/ED manual for normal diagnostics.

4. Review the repair history to determine if a PCM with an RM part number suffix has been installed previously. Has a PCM with an RM part number suffix been installed previously (e.g. XXXX-12A650-XXRM)?
No: Proceed to Step 5.
Yes: Replace only the ignition coil-on-plug(s) and the spark plug(s) for the affected cylinder(s) and do not continue with this bulletin. Refer to the PC/ED manual for normal diagnostics.

5. Replace the ignition coil-on-plug(s) and the spark plug(s) for the affected cylinder(s).

Courtesy of ALLDATA.

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