Tribute 4WD L4-2.5L Hybrid (2009)
Electronic Brake Control Module: All Technical Service Bulletins
ABS/TCS - Throttle/Brake Pedal Vibration At 12 /42 MPH
Bulletin No: 04-009/09
Last Issued: 08/19/2009
Subject
ABS MODULE SELF-TEST CREATING A SLIGHT VIBRATION IN ACCEL/BRAKE PEDAL AT 12MPH (20KM/H) AND/OR 42MPH (68KM/H)
APPLICABLE MODEL(S)/VINS
2009 Tribute
DESCRIPTION
Some vehicles may exhibit a slight vibration in the accelerator/brake pedal at 12 MPH (20 km/h) and/or 42 MPH (68 km/h) while the ABS Module
performs a self-test. The ABS module will initiate a one time self test at 12 MPH (20 km/h) and at approximately 42 MPH (68 km/h) for every key on
cycle. A one time self test may also occur at 42 MPH (68 km/h) after an ABS event. This is a normal characteristic of the vehicle and does not affect
brake function. An updated anti-lock brake system (ABS) software reprogramming is now available to reduce this slight vibration affect at approximately
42 MPH (68 km/h). It will not change the effect at 12 MPH (20 km/h).
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
(Use Steps below for all models)
1. Reboot the IDS to clear memory before reprogramming.
2. Using IDS 62.08 or later software (the VCM 2009.7 DVD did not include this calibration file), reprogram the ABS module to the latest calibration
(refer to "Calibration Information" table) by following the "Module Reprogramming" procedure.
NOTE:
^ Always update the IDS tool first, then follow on-screen instructions to download the needed calibration file for ABS module reprogramming.
^ It is not necessary to remove any fuses or relays during ABS module reprogramming when the IDS screen prompts you to do so. You may accidentally
stop power to one of the ABS module terminals and cause the ABS module to be blanked, or you may receive error messages during the IDS
reprogramming procedure.
^ IDS shows the calibration part numbers after programming the ABS module.
^ Please be aware that ABS module calibration part numbers and file names listed in any Service Bulletin may change due to future releases of IDS
software, and additional revisions made to those calibrations for service related concerns.
^ When reprogramming a ABS module, IDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has been
revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.
^ When performing this procedure, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum charge of no
more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it could damage the VCM.
3. After performing the ABS module reprogramming procedure, erase any stored DTC's.
4. Verify the repair by starting the engine and making sure there are no MIL illumination or abnormal warning lights present.
NOTE:
^ If any DTCs should remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting section of the Workshop
Manual.
^ After ABS module reprogramming, it is no longer necessary to road test the vehicle to "relearn" KAM (Keep Alive Memory).
