Corvette V8-6.0L VIN U (2005)
Electronic Brake Control Module: Technical Service Bulletins
Brakes - Revised Brake Control Module Replacement
Bulletin No.: 05-05-25-004
Date: June 03, 2005
SERVICE MANUAL UPDATE
Subject:
SMU - Revised Electronic Brake Control Module Replacement Procedure
Models:
2004-2005 Cadillac XLR
2005 Chevrolet Corvette
This bulletin is being issued to revise the Electronic Brake Control Module Replacement procedure in the ABS/Traction Control sub-section of the
Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin
on the affected page.
Electronic Brake Control Module Replacement Removal Procedure
Note:
Always connect or disconnect the wiring harness from the EBCM/EBTCM with the ignition switch in the OFF position. Failure to observe this
precaution could result in damage to the EBCM/EBTCM.
Important:
^
The ignition switch must placed in OFF model ONLY, before disconnecting the negative battery cable during this procedure. If the ignition
switch is accidentally placed into ignition ON engine OFF mode, the control modules will be activated and disconnecting the negative battery
cable will cause various DTCs to be set. Refer to Keyless Entry system Description and Operation in Keyless Entry.
^
After the ignition switch is placed into OFF mode, a waiting period of 2 minutes must be observed to allow the high-speed LAN control modules
to deactivate before disconnecting or connecting the negative battery cable during this procedure. If the waiting period is not observed, one or
more of these control modules may still be active, this will cause various DTCs to be set.
1.
Place the ignition switch into OFF mode. Do NOT place the ignition switch into ignition ON engine OFF mode.
2.
Wait for a minimum of 2 minutes to allow the high-speed LAN control modules to deactivate.
3.
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
4.
Thoroughly clean the electronic brake control module (EBCM) to brake pressure modulator valve (BPMV) area of any dirt or contaminants.
5.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
6.
Remove the two BPMV bracket-to-crossmember mounting bolts to improve access to the EBCM and connector.
7.
Support the ABS modulator assembly.
