Escalade EXT AWD V8-6.2L (2009)
Air Bag Control Module: All Technical Service Bulletins
Restraints - Information on DTC B0081 5A
INFORMATION
Bulletin No.: 08-09-41-009A
Date: February 03, 2009
Subject:
Information on DTC B0081 5A
Models:
2009 Cadillac Escalade (Including Hybrid), Escalade ESV, Escalade EXT
2009 Chevrolet Avalanche, Silverado (including Hybrid), Suburban, Tahoe
2009 GMC Sierra (including Hybrid), Yukon (Including Hybrid), Yukon Denali, Yukon XL, Yukon Denali XL
2008-2009 Pontiac G8
Supercede:
This bulletin is being revised to update the models to include full size trucks. Please discard Corporate Bulletin Number 08-09-41-009 (Section 09 -
Restraints).
Technicians may find a DTC B0081 5A in some of the vehicles listed above. The sensing and diagnostic module (SDM) is setting this DTC due to an
issue with the messages in the software for the SDM.
Technicians should check for DTCs while the ignition is in RUN. If DTC B0081 5A is set in history, there is no need for any parts replacement. The
only way this code is set in history is if the key is left in ACC for more than 10 seconds. The passenger side tell tale airbag light in the cluster will stay on
solid until the key is in RUN or OFF. For example, the customer will have the car parked, key in ACC and listening to the radio the light comes on and
the DTC B0081 5A sets.
If you are checking the vehicle after this event, you will find DTC B0081 5A in history if the IGN is in RUN.
If you turn the key to the ACC position for more than 10 seconds with the Tech 2(R) tool connected, the code will be current as long as you are in the
ACC position.
If the key is moved to RUN or OFF, the telltale light will go off and the code will go immediately to history (reference to PIC4917 DTC B0081 5A In
History).
This condition will only occur with the following passenger presence system (PPS) module part numbers:
^
25977948 (CK) (All)
^
94216444 (G8) (Leather)
^
92221553 (G8) (Leather)
^
92219364 (G8) (Cloth)
Remember that any time the vehicle is brought into service that the customer could have operated the vehicle in ACC for more than 10 seconds. This will
cause the passenger side airbag light to come on solid in the cluster. Please tell the customer that this is a normal operating characteristic.
If DTC B0081 5A is current while the ignition is in RUN, please check all connections and wiring. Check the seat connector located on the right side
under the sill plate in the door opening. Pull the seat out of the vehicle and check for PPS wiring and make sure all connectors are connected. ThePPS
Module has two connections one for the seat harness and one for the sensor mat (the sensor mat is located between the seat foam cushion and seat pan).
If other DTCs are current, follow the diagnostics in SI. (There are two SDM DTC s related to PPS: B0081 71 - Passenger Presence System 1 Invalid
Serial Data Received and U0170 - Lost Communication With Restraints System Sensor A (PPS)).
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