Ignition System - Revised Ignition Module/Coil DTC's

INFORMATION

Bulletin No.: 08-06-04-049

Date: October 16, 2008

Subject:
LD8, L37 Engine for Model Year 2008 - Firing Order for Eight Individual Ignition Module/Coil Control (IC) Circuits

Models:
2008 Buick Lucerne
2008 Cadillac DTS

with 4.6L Northstar(R) V8 Engine (VINs Y, 9 - RPOs LD8, L37)

Diagnostic Trouble Codes (DTCs) P0351-P0358 for Ignition Module/Coil Control Circuits are mapped differently for 2008 model year than for other model years.





The table above shows Ignition Module/Coil Control (IC) Circuit DTC mapping for the 2008 model year only:

Refer to Service Information (SI) for additional information on DTCs P0351-P0358.

Important:
LD8 and L37 Engine Firing Order: 1-2-7-3-4-5-6-8.





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