K Tahoe 4WD V8-4.8L VIN V (2000)
Body Control Module: Procedures
1. The body control module (BCM) must be programmed with the proper RPO configurations. The BCM stores the information regarding the
vehicle options and if the BCM is not properly configured with the correct RPO codes the BCM will not control the features properly. Ensure that
the following conditions exist in order to prepare for BCM programming:
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The battery is fully charged.
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The ignition switch is in the RUN position.
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The data link connector (DLC) is accessible.
2. Follow the instructions on the Techline Terminal and scan tool to program the BCM.
3. If the BCM tails to accept the program, perform the following steps:
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Inspect all BCM connections.
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Verify that the Techline Terminal and scan tool have the latest software version.
Passlock Learn Procedures
Requirements for Using Any Learn Procedure
Perform the Learn Procedure if any of the following components have been replaced:
IMPORTANT: If any module is replaced, programming the module must be done prior to performing the Passlock Learn procedure.
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The Passlock sensor
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The body control module (BCM)
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The powertrain control module (PCM)
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The vehicle control module (VCM)
Passlock Learn Procedure - Using the Techline Terminal and the Scan Tool
Follow the instructions displayed on the Techline Terminal in Service Programming System (SPS) and the scan tool for this reprogramming
procedure.
Auto Learn Passlock Procedure
1. Turn the ignition switch to the RUN position (NOT the CRANK position).
2. Turn the ignition switch to the CRANK position, then release to the RUN position (Do NOT start the vehicle).
3. Observe the security telltale for approximately 10 minutes.
4. After the ignition switch has been in the RUN position for approximately 10 minutes, the security telltale will transition from ON, then to
OFF.
5. Repeat Steps #1 through #4 two more times.
6. After three consecutive cycles of the ignition switch are successfully completed, the vehicle will learn the new component on the next ignition
cycle from the OFF position to the CRANK position, then to the RUN position. The vehicle will then start.
7. Clear the DTCs using a scan tool.
