TSB???????????????

[srubrn]

Can anybody tell me what these two TSB's mean?

02-06-04-048; Revised DTC P0540; 2001-02 Chevrolet Silverado, GMC Sierra Pickup Models with 6.6L Engine (VIN 1 -- RPO LB7)

02-06-04-049; Revised DTC P0201 -- P0208; 2001-02 Chevrolet Silverado, GMC Sierra Pickup Models with 6.6L Engine (VIN 1 -- RPO LB7)

I know what these means so I thought I would pass it on!!

02-06-01-023A; replaces 02-06-01-023; Oil Leak at Oil Cooler to Engine Block Mating Surface (Replace O-rings, Apply Sealant); 2001-03 Trucks with 6.6L Duramax Diesel Engine (VIN 1 -- RPO LB7)

02-07-30-032; Allison Transmission Control Module Fast Learn Procedure Update Required After Transmission Repairs; 2002-03 Chevrolet Silverado, GMC Sierra with Allison 1000 Series Automatic Transmission

01-03-10-010A; replaces 01-03-10-010; Inspection of Tire and Wheel Size Prior to Diagnosis of Transmission Shifts, Poor Performance, Speedometer, Cruise Control Concerns; 2001-02 Chevrolet, GMC Sierra with Duramax Diesel Engine and Allison Transmission

[White Truck]

02-06-04-048
The diagnostic information and procedures for DTC P0540 have been revised in the above applications to reflect the use of a scan tool to operate the intake air heater (IAH) during the testing procedure. The operation of the IAH depends on variables that may not be within the technicians control. By using a scan tool to turn the IAH ON and OFF, you can consistently put the IAH in the mode desired for that step in the test.

02-06-04-049
The diagnostic information and procedures for DTC P0201-P0208 (FICM circuit fault) have been revised in the above applications to reflect the change in the tool used to diagnose the circuit faults. Using a test lamp may not find wiring insulation problems that will allow the high voltage to go to ground. Using a DMM will find any circuit insulation problems

[srubrn]

Thanks