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MC 10113739 9999

The document provides a diagnostic tip for technicians finding a B101D F0 diagnostic trouble code set in the body control module after a dead battery event. It explains that this is a rare condition caused by an extreme low voltage trigger and not the cause of the dead battery. It recommends clearing DTCs and disconnecting the battery to potentially recover the BCM without replacing it if the code does not reappear or other symptoms are present.

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Thomas Anderson
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56 views1 page

MC 10113739 9999

The document provides a diagnostic tip for technicians finding a B101D F0 diagnostic trouble code set in the body control module after a dead battery event. It explains that this is a rare condition caused by an extreme low voltage trigger and not the cause of the dead battery. It recommends clearing DTCs and disconnecting the battery to potentially recover the BCM without replacing it if the code does not reappear or other symptoms are present.

Uploaded by

Thomas Anderson
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Bulletin No.

: PI1435
Date: Mar-2015

Subject: Diagnostic Tip for BCM DTC B101D SYM F0 Set with No Other Symptoms

Models: 2015 Cadillac ATS, CTS Sedan (VIN A), Escalade Models, XTS
2015 Chevrolet Corvette, Impala (VIN 1), Silverado, SS, Suburban, Tahoe
2015 GMC Sierra, Yukon, Yukon XL

Attention: This PI also applies to any of the above models that may be Export vehicles.

Condition/Concern
Technicians may find B101D F0 set in the BCM after a dead battery event.
The rare condition that sets B101D F0 is an extreme dead battery case. It is NOT the cause of the dead battery, but the extreme low voltage is a trigger that
causes this DTC to set.

Recommendation/Instructions
If DTC B101D SYM F0 is set current in the BCM, technicians should perform the following:

1. Clear the DTCs. If DTC B101D SYM F0 clears with no other symptoms, DO NOT replace the BCM. No further action is required. It is a known falsely
set DTC and does not cause any customer concerns.
2. If the B101D SYM F0 resets, ensure the BCM is awake (open the driver's door) then disconnect the battery, wait 5 seconds, then reconnect the
battery. In some cases, this may recover the BCM allowing the clearing of the malfunction code.
If either of the above procedures allows for the clearing of the malfunction code B101D Sym F0, the BCM should not be replaced.

Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH) for coverage information.

Labor Operation Description Labor Time

4069929 Electrical Controls - Labor Only (Reset BCM by Disconnecting Battery) Use Published Labor
Operation Time

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may
occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools,
safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that
your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

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