Ignition System - MIL ON/DTC's P0341/P0346 Set
S303-17S-TYPE
DATE 12/03
MODEL
2003 MY-ON
S-TYPE 3.0L
VIN
M44998-ON
Check Engine MIL/DTC P0341 And P0346-V6 Engine - Repair Procedure
Issue:
This Technical Bulletin has been issued to address customer concerns of the check engine Malfunction Indication Lamp (MIL) illuminating with Diagnostic Trouble Code (DTC) P0341 (CMP sensor-Bank 1) or P0346 (CMP sensor-Bank 2) stored.
Action:
In case of a customer complaint of the above condition, perform the diagnostic routines on WDS associated with DTC P0341 or P0346. If the codes cannot be cleared, or there was no fault found, remove and check the resistance of the spark plugs. If the resistance is below 1k ohm, replace the spark plug and the ignition coil-on-plug. Follow the workshop procedure outlined below.
WORKSHOP PROCEDURE
Note:
Observe the position of the ignition coil-on-plug and spark plugs when removing them. The ignition coil-on-plug and spark plugs will be replaced as a matched pair if the spark plug is faulty.
1. Remove ignition coil-on-plug (see Workshop Manual, JTIS CD ROM, section: 303-07, SRO 18.20.43 right hand and 18.20.44 left hand).
Note:
Please be aware that the link in 'Ignition Coil-On-Plug RH' to remove the intake manifold takes you to Engine-Removal. Manually navigate to the intake manifold remove and install procedure in JTIS, section 303-01A, SRO 30.15.01.
2. Remove the spark plugs.
3. Check tip-to-tip resistance of all spark plugs, using a suitable ohm meter. If any spark plug has a resistance of less than 1k ohm, replace the spark plug and the ignition coil-on-plug.
4. Install spark plugs.
5. Install ignition coil-on-plug (see Workshop Manual, JTIS CD ROM, section: 303-07).
Note:
Ensure WDS is loaded with software release JTP 759/26 or later.
6. Clear DTCs using WDS.
Parts Information
Warranty Information:
Warranty claims should be submitted quoting the information found in the table.
This will result in payment of the stated time and, where applicable parts/miscellaneous expense codes as listed.