DOCUMENT TECHNICAL CONTENTS & VERIFIED SCHEMATIC / PCB PREVIEW
VERIFIED ENGINEERING SPEC
This 5-page technical guide details the diagnosis of a P2138 fault code on a 2011 Buick LaCrosse 2.0T. It covers the TAC system architecture, APP sensor voltage specifications, and GDS2 data stream analysis to identify a wiring harness issue.
WHAT IS INSIDE THIS DOCUMENT (CIRCUITS, PINOUTS & SECTIONS):
- P2138 DTC definition and set conditions
- Throttle Actuator Control (TAC) system architecture
- APP sensor 1 and 2 voltage specifications
- GDS2 data stream analysis and waveform tracing
- Wiring harness continuity and jumper wire diagnosis
- 5V reference voltage circuit current testing
1. TECHNICAL PASSPORT & EXTRACTED ROM IDENTIFIERS (BINARY TRUTH)
SKU: ECU-76748
| Vehicle brand & model / Engine | GM: Buick / Chevrolet / Cadillac |
|---|---|
| ECU family & processor (MCU) | OEM ECU & Electronic Modules / OEM 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 2.0T P2138 APP Sensor 1-2 Unreasonable Fault Diagnosis (5p PDF) [#76748] |
| Category / Package | manual_pdf / generic-ecu |
| Exact size & SHA-256 checksum | 885,170 bytes • 59f8c18234c80e04a622ee76a174b92aa41ea12cdc0e83cb7161e54f383d0b45 |
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 2.0T P2138 APP Sensor 1-2 Unreasonable Fault Diagnosis (5p PDF) [#76748] (P2138) for?
This engineering .PDF file targets the OEM ECU & Electronic Modules control unit (OEM MCU MCU) used on GM: Buick / Chevrolet / Cadillac vehicles. Extracted ROM markers: P2138.
Q: Is the dump Buick LaCrosse 2.0T P2138 APP Sensor 1-2 Unreasonable Fault Diagnosis (5p PDF) [#76748] verified for authenticity and checksums?
Yes. The automated ROM analyzer verified the size (885,170 bytes), the SHA-256 checksum (59f8c18234c80e04a622ee76) and the internal firmware project identity (OEM ECU & Electronic Modules).
Q: What wiring diagrams, pinouts and fault codes are inside the document Buick LaCrosse 2.0T P2138 APP Sensor 1-2 Unreasonable Fault Diagnosis (5p PDF) [#76748]?
This technical document (Buick LaCrosse 2.0T P2138 APP Sensor 1-2 Unreasonable Fault Diagnosis (5p PDF) [#76748]) contains wiring diagrams, ECU connector pinouts for OEM ECU & Electronic Modules and diagnostic test procedures for GM: Buick / Chevrolet / Cadillac .
4. ALL RELATED FILES OF THIS FOLDER, BRAND & ECU (FIRMWARE, MAPS, DIAGRAMS, CODING & VIDEOS)
BUNDLE: generic-ecu
WHOLESALE PACK -92% (ALL FILES AT ONCE)
DEDUPLICATED • VERIFIED (COPIES REMOVED: 2)
Download the whole set of related files (38 unique files in one archive)
Individually, all 38 paid files cost $2,175. Buying the whole pack applies the wholesale discount -92% (save $2,010) + 0 free diagrams/photos!
Retail total: $2,175
$165
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