Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Electronic Brake Control Module: All Technical Service Bulletins
Brakes - ABS Lamp/Service Brake System Message ON
Bulletin No.: 04-05-25-005A
Date: September 28, 2004
ADVANCE SERVICE INFORMATION RESOLUTION
Subject:
Antilock Brake System (ABS) Light On, Service Brake System Message on Driver Information Center (DIC) (Reprogram Electronic Brake Control
Module (EBCM))
Models:
2003-2005 Chevrolet Silverado 2500/3500 HD Series Pickups
2003-2005 GMC Sierra 2500/3500 HD Series Pickups
with Identification 2-inch Body Raise, HD Model (RPO HVY)
Supercede:
This bulletin is being revised to add correction information and additional model years. Please discard Advanced Service Information Bulletin Number
04-05-25-005 (Section 05 - Brakes).
Condition
Some customers may comment that the ABS light, Service Brake System message comes on intermittently during initial start-up. The condition does not
cause a DTC to be stored permanently.
Cause
The cause may be a timing issue related to the cranking/starting of the vehicles. It appears that the condition is more likely to occur on vehicles with
diesel engines, though it can occur on vehicles with gasoline engines as well.
Correction
Reprogram the EBCM with TIS software version 7.5, released July 26, 2004 or newer. Refer to Service Programming System (SPS).
Warranty Information
For vehicles repaired under warranty, use the table.
