DOCUMENT TECHNICAL CONTENTS & VERIFIED SCHEMATIC / PCB PREVIEW
VERIFIED ENGINEERING SPEC
This 5-page Honda Jade service guide details the diagnostic procedure for DTC U128D (Loss of communication with METER). It provides a step-by-step flowchart for checking fuses, power supply, ground, and B-CAN_L/H wiring between the Smart Key Control Unit and the Meter.
WHAT IS INSIDE THIS DOCUMENT (CIRCUITS, PINOUTS & SECTIONS):
- DTC U128D: Loss of communication with METER
- Step 1: Problem confirmation and HDS DTC clearing
- Step 2: B-CAN control unit diagnostic check
- Step 3: Fuse inspection (A21 10A, B5 7.5A)
- Step 4-5: Power supply (+B BACK UP, IG1 METER) wire check
- Step 6: Ground (GND) circuit continuity check
- Step 7-8: B-CAN_L and B-CAN_H line continuity check
1. TECHNICAL PASSPORT & EXTRACTED ROM IDENTIFIERS (BINARY TRUTH)
SKU: ECU-126067
| Vehicle brand & model / Engine | Honda / Acura |
|---|---|
| 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 | Honda Jade DTC U128D: Smart Key Control Unit to Meter Communication Troubleshooting (5p PDF) [#126067] |
| Category / Package | wiring_doc / immo-bcm-cas-key |
| Exact size & SHA-256 checksum | 182,222 bytes • 82f62b67761af44145728a197f438389d23dccbe40d25ed46c94f2aa9cb35965 |
3. FREQUENT ENGINEERING QUESTIONS ABOUT THIS FILE (SCHEMA.ORG FAQPAGE)
E-E-A-T INDEX
Q: Which ECU and engine is the file Honda Jade DTC U128D: Smart Key Control Unit to Meter Communication Troubleshooting (5p PDF) [#126067] (G502, B5, 7-pin connector, U128D, Engine Immobilizer - Smart Key Control Unit, 32-pin connector, Meter Control Unit, A21) for?
This engineering .PDF file targets the IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY) control unit (IMMO / Security MCU MCU) used on Honda / Acura vehicles. Extracted ROM markers: G502, B5, 7-pin connector, U128D, Engine Immobilizer - Smart Key Control Unit, 32-pin connector, Meter Control Unit, A21.
Q: Is the dump Honda Jade DTC U128D: Smart Key Control Unit to Meter Communication Troubleshooting (5p PDF) [#126067] verified for authenticity and checksums?
Yes. The automated ROM analyzer verified the size (182,222 bytes), the SHA-256 checksum (82f62b67761af44145728a19) 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 Honda Jade DTC U128D: Smart Key Control Unit to Meter Communication Troubleshooting (5p PDF) [#126067]?
This technical document (Honda Jade DTC U128D: Smart Key Control Unit to Meter Communication Troubleshooting (5p PDF) [#126067]) contains wiring diagrams, ECU connector pinouts for IMMO / BCM / Keys (CAS / FEM / BDC / EIS / KESSY) and diagnostic test procedures for Honda / Acura .
4. ALL RELATED FILES OF THIS FOLDER, BRAND & ECU (FIRMWARE, MAPS, DIAGRAMS, CODING & VIDEOS)
BUNDLE: immo-bcm-cas-key
WHOLESALE PACK -87% (ALL FILES AT ONCE)
DEDUPLICATED • VERIFIED (COPIES REMOVED: 2)
Download the whole set of related files (22 unique files in one archive)
Individually, all 21 paid files cost $1,295. Buying the whole pack applies the wholesale discount -87% (save $1,130) + 1 free diagrams/photos!
Retail total: $1,295
$165
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