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 MANUALSCHEVROLET2009TAHOE 4WD V8-6.0L HYBRIDREPAIR AND DIAGNOSISTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGACCESSORY DC POWER CONTROL MODULE PROGRAMMING AND SETUP
2009 Chevrolet Tahoe 4WD V8-6.0L Hybrid
Accessory DC Power Control Module Programming and Setup
2009 Chevrolet Tahoe 4WD V8-6.0L HybridSECTION Accessory DC Power Control Module Programming and Setup
Accessory DC Power Control Module Programming and Setup
The following service procedures require either a programming or a setup event be performed for a complete repair.
Accessory Power Module (APM) Replacement
If the APM is replaced, APM programming must be performed. Refer to Service Programming System (SPS) (Programming and Relearning).
Accessory Power Module (APM) Reprogramming
When APM reprogramming must be performed, refer to Service Programming System (SPS) (Programming and Relearning).
Ensure the following conditions exist in order to prepare for APM programming or reprogramming:
* The battery is fully charged.
* The ignition switch is in the RUN position.
* The Techline equipment cable connection at the data link connector (DLC) is secure.
Program the APM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
If the APM fails to program, proceed as follows:
* Ensure the DLC and APM connections are good.
* Inspect the Techline equipment for the latest software version.
* Attempt to program the APM. If the APM still cannot be programmed properly, replace the APM.
Accessory Power Module (APM) Setup
This device requires no setup.
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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.