PIT5522

Bulletin No.: PIT5522
Date: Aug-2016
Subject:
Unable To Complete SPS IMMO Immobilizer Theft Learn
Brand:
Model:
Model Year:
VIN:
from
to
from
Engine:
Transmission:
All
All
to
Cadillac
Escalade
2015
2016
All
Chevrolet
Silverado 1500
2014
2014
All
All
All
All
Chevrolet
Silverado,
Suburban,
Tahoe
2015
2016
All
All
All
All
GMC
Sierra 1500
2014
2014
All
All
All
All
GMC
Sierra, Yukon
Models
20150
2016
All
All
All
All
Involved Region or Country
North America
Additional RPO/s:
N/A
Condition
All
When performing the SPS IMMO Immobilizer Theft Learn, it may not complete and/or show "Controller ID not
supported" after the first few minutes into the learn event.
Cause
This issue could be caused by the On-Star module (K73) waking up and interrupting the IMMO Immobilizer
Theft Learn event.
Correction
To keep the On-Star module (K73) from waking up during the IMMO Immobilizer Theft Learn, it can be disabled by removing its power feed (fuse). To disable
the On-Star Module (K73) perform the following:
1.
In the Right Instrument Panel Fuse Block (X51R) remove the "INFO/AIRBAG (10A/10A)" fuse. This will be a 3 legged fuse and one leg of the fuse
feeds the SIR Module (K36) and the other leg feeds the On-Star Module (K73). The SIR module (K36) has an immobilizer environment identifier and it
will need to be put back online so that it communicates during the IMMO Immobilizer Theft Learn.
2.
To re-supply power to the SIR module (K36), simply obtain a 10 amp, 2 legged fuse and reinstall it back into the "INFO/AIRBAG" fuse position. An
example is shown below for reference ONLY. Make sure the fuse is installed so it powers the SIR Module (K36) and NOT the On-Star Module (K73).
To make sure it is in the correct position, use GDS2 and make sure the On-Star module will NOT communicate and the SIR Module (K36) WILL
communicate.
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3.
Perform the SPS IMMO Immobilizer Theft Learn again.
4.
When complete, remove the 2 legged fuse and reinstall the original 3 legged "INFO/AIRBAG" (10A/10A) fuse.
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1
Modified
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your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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