DOCUMENT TECHNICAL CONTENTS & VERIFIED SCHEMATIC / PCB PREVIEW
VERIFIED ENGINEERING SPEC
This technical bulletin details the PASS-KEY III immobilizer system for the Buick LaCrosse. It provides wiring diagrams for the BCM and ECM, along with step-by-step instructions for key programming and module replacement.
WHAT IS INSIDE THIS DOCUMENT (CIRCUITS, PINOUTS & SECTIONS):
- PASS-KEY III system architecture overview
- Ignition switch and BCM/ECM wiring diagram
- Ignition key programming procedure
- BCM and ECM replacement reprogramming
- Key learning cycle and timing requirements
- Adding additional keys to the system
1. TECHNICAL PASSPORT & EXTRACTED ROM IDENTIFIERS (BINARY TRUTH)
SKU: ECU-32165
| Vehicle brand & model / Engine | GM: Buick / Chevrolet / Cadillac |
|---|---|
| ECU family & processor (MCU) | IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY) / IMMO / Security MCU |
| Internal ROM project (Project ID) | — |
| Calibration identifier (STC) | — |
| Bosch software number (10SW / 1037) | — |
| Bosch hardware number (0281 / 0261) | — |
| Compatibility code block (CompID) | — |
| Engineering file name | Buick LaCrosse PASS-KEY III Immobilizer Programming and BCM/ECM Replacement Guide (1p PDF) [#32165] |
| Category / Package | manual_pdf / immo-bcm-cas-key |
| Exact size & SHA-256 checksum | 597,530 bytes • d8997f6889f4516641e64424d71b04f32b770bdd95210e67acde06dee8f1b469 |
3. FREQUENT ENGINEERING QUESTIONS ABOUT THIS FILE (SCHEMA.ORG FAQPAGE)
E-E-A-T INDEX
Q: Which ECU and engine is the file Buick LaCrosse PASS-KEY III Immobilizer Programming and BCM/ECM Replacement Guide (1p PDF) [#32165] (BCM, PASS-KEY III, ECM) for?
This engineering .PDF file targets the IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY) control unit (IMMO / Security MCU MCU) used on GM: Buick / Chevrolet / Cadillac vehicles. Extracted ROM markers: BCM, PASS-KEY III, ECM.
Q: Is the dump Buick LaCrosse PASS-KEY III Immobilizer Programming and BCM/ECM Replacement Guide (1p PDF) [#32165] verified for authenticity and checksums?
Yes. The automated ROM analyzer verified the size (597,530 bytes), the SHA-256 checksum (d8997f6889f4516641e64424) and the internal firmware project identity (IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY)).
Q: What wiring diagrams, pinouts and fault codes are inside the document Buick LaCrosse PASS-KEY III Immobilizer Programming and BCM/ECM Replacement Guide (1p PDF) [#32165]?
This technical document (Buick LaCrosse PASS-KEY III Immobilizer Programming and BCM/ECM Replacement Guide (1p PDF) [#32165]) contains wiring diagrams, ECU connector pinouts for IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY) and diagnostic test procedures for GM: Buick / Chevrolet / Cadillac .
4. ALL RELATED FILES OF THIS FOLDER, BRAND & ECU (FIRMWARE, MAPS, DIAGRAMS, CODING & VIDEOS)
BUNDLE: immo-bcm-cas-key
WHOLESALE PACK -91% (ALL FILES AT ONCE)
DEDUPLICATED • VERIFIED (COPIES REMOVED: 7)
Download the whole set of related files (31 unique files in one archive)
Individually, all 31 paid files cost $1,875. Buying the whole pack applies the wholesale discount -91% (save $1,710) + 0 free diagrams/photos!
Retail total: $1,875
$165
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