GM Service Manual Online
For 1990-2009 cars only

Midtronics Code Generated by J 42000 or J 42000EU Battery Tester Required for Claim Processing On Labor Operation N0110

Subject:Midtronics Code Generated By J 42000 or J 42000EU Battery Tester Required For Claim Processing On Labor Operation N0110

Models:2008 and Prior GM Passenger Cars and Light Duty Trucks
2008 and Prior HUMMER H2, H3

Attention: This bulletin does NOT apply to Saturn and Saab vehicles.


This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin Number 03-06-03-004B (Section 06 - Engine).


The out-of-vehicle Midtronics code generated by the J 42000 or J 42000EU battery tester is required for claim processing on labor operation N0110, Battery-Replace. The code must be entered into the Failure Code (FC) field on the warranty claim (refer to the Claims Processing Manual, Section IV, Warranty Claim Data, page 6, Item G). This is a revision from past requirements when the test code was placed in the "comments" field.

Important: Enter only the first five digits of the Midtronics code. The Failure Code field accepts up to five digits and will not accept more.

   • Example: The J 42000 tester generates an out-of-vehicle code of 1N1PN-RH. Enter only 1N1PN into the Failure Code field.
   • Example: The J 42000EU tester generates an out-of-vehicle code of 0090L-HJ-B9. Enter only 0090L into the Failure Code field.

eClaim Users

Dealers who process their claims through eClaims will be required to include the first five digits of the Midtronics code in the DIAGNOSTIC CODE field on their eClaim submission.

Special Cases

    • Clear hydrometer eye - If the hydrometer eye is clear, indicating a low electrolyte level in the battery cell, replace the battery per the SI diagnostic procedure as requested in Corporate Bulletin Number 05-06-03-002B. Enter CLEAR into the Failure Code field.
    • Damaged or leaking batteries - It is not necessary to test leaking batteries with the J 42000. Enter LEAKS into the Failure Code field. For batteries with side terminal stripped threads, refer to Corporate Bulletin Number 02-06-04-015A.
    • Voltage too low to activate tester - When the battery state of charge is too low to activate the J 42000, charge the battery and retest. Refer to Corporate Bulletin Number 02-06-03-009B. If, after recharging, the battery will not activate the J 42000 tester and SI diagnosis per Corporate Bulletin Number 05-06-03-002B indicates a battery replacement, enter TOOLO into the Failure Code field.
    • Cadillac Roadside service claims - Test the battery with the J 42000 after return to the dealership. Enter the first five digits of the Midtronics code into the Failure Code field on the claim. If the battery is found to be good, enter BATTERY GOOD-ROADSIDE REPAIR in the comment section of the claim.
    • Customer reimbursement cases - Existing policies on customer reimbursement apply. If the customer's battery is available, enter the Midtronics code into the Failure Code field on the claim. If the customer's battery is not available, enter REIMB into the Failure Code field on the claim.
    • Approved GM Fleet and Commercial in-shop warranty stations- If the Midtronics code is available, enter the first five digits of the code into the Failure Code field. If the Midtronics code is not available, enter FLEET into the Failure Code field.