Here are a few things I'm finding from a shop manual...
#02-06-03-012: Proper Diagnostic Procedures for No
Start, No Crank, Battery, Batteries, Generator,
Gauges, SES, SIR, Brake, Security, Theft, ABS, Hot,
DIC Messages, Lamp, Light, Battery and Generator
Diag. Testing - (Oct 25, 2002)
This bulletin is in response to general inquires:
This bulletin emphasizes two points:
Several bulletins and TechLink articles have been published in recent months regarding:
Subject: Proper Diagnostic Procedures for No Start, No Crank,
Battery, Batteries, Generator, Gauges, SES, SIR, Brake,
Security, Theft, ABS, Hot, DIC Messages, Lamp, Light,
Battery and Generator Diagnostic Testing
Models: 1997--2003 Passenger Cars and Light Duty Trucks (Except
Electric Vehicles)
2003 HUMMER H2
• About batteries and generators
• Requirements for the Battery/Generator Diagnostic Work Sheet
• From National Dealer Council meetings and the Fixed Operations Advisory Board
• Completion of the Electrical System Diagnostic Work Sheet is intended to ensure that only
faulty batteries and generators are replaced and to protect dealers from potential charge
backs for generator or battery replacements where returned parts inspections reveal No
Trouble Found (NTF).
• To emphasize that we will pay for completion of the Electrical System Diagnostic Work
Sheet in the following ways:
-
N0110, Battery R&R, will have the following added to the labor code: ADD -- To
complete Electrical System Diagnostic Worksheet - 0.7 hr.
-
J4100, Generator R&R, will have the following added to the labor code: ADD -- To
complete Electrical System Diagnostic Worksheet - 0.7 hr.
-
N9995, Customer concern not duplicated. This is a straight time labor operation code
and should be used when the Electrical System Diagnostic Work Sheet is completed and
no trouble is found with the electrical system of the vehicle. This labor code has the
following note: "Actual time from 0.1 to 0.3 hours spent to perform the diagnosis is to
be entered as "Labor Hours" for this operation. Any additional diagnosis time greater
than 0.3 hours must be submitted as "Other Labor Hours", and have appropriate Service
Management approval and authorization".
• Charging of Batteries
• TechLink August 2002, Battery Charging Tips, Volume 4, No. 8
• Corporate Bulletin Number 02-06-03-009, Battery Charging Tips, August 2002
• Dealing with Battery Parasitic Drains
• TechLink April 2002, Volume 4, No. 4
• Corporate Bulletin Number 02-06-03-010, Informational -- Battery Parasitic Drain,
October 2002
• Generator Operation and Troubleshooting
• Corporate Bulletin Number 02-06-03-006, No Start, No Crank, Battery, Batteries,
Generator, Gauges, SES, SIR, Brake, Security, Theft, ABS, Hot, DIC Messages, Lamp,
Light, Battery and Generator Diagnostic Testing, and Cadillac Roadside Service,
Warranty Claims Procedure, July 2002
• TechLink May 2002, Generator Operation and Troubleshooting, Volume 4, No. 5
• A separate Electrical System Diagnostic Work Sheet bulletin is in process. The Corporate
Bulletin Number is 02-06-03-011.
• A Technology Close-Up training broadcast which will show and discuss the Electrical
System Diagnostic Work Sheet will take place on December 19, 2002.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that
may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the
equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin
applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.