Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2000K TAHOE 4WD V8-5.7L VIN RREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSBODY CONTROL MODULEDESCRIPTION AND OPERATIONASLEEP STATES
2000 Chevrolet K Tahoe 4WD V8-5.7L VIN R
Asleep States
2000 Chevrolet K Tahoe 4WD V8-5.7L VIN RSECTION Asleep States
The BCM is Asleep when it has stopped controlling or monitoring devices and has become idle again. After the ignition switch is turned to the lock position and 20 minutes (1216 seconds) elapse without any wake-up signals, the BCM enters into a sleep state and goes into the low power mode. If the BCM is in low power mode and detects a wake-up command, the BCM will enter into the wake-up state and enter the high power mode. If the vehicle has been left inactive (ignition in the lock position and no BCM wake-ups) for 20 minutes, the BCM will return to the low power mode.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.