| Symptom | Datasheet Reference | Likely Cause |
| :--- | :--- | :--- |
| ECU does not power on | Section 4.1 (Power) | Reverse polarity or blown main fuse. Check Pin A1. |
| No CAN Communication | Section 3.4 (Comms) | Incorrect termination (requires 120Ω). Check CAN_H/CAN_L swap. |
| Sensor reading "0.5V" stuck | Section 2.2 (ADC) | Input pin set to "Pull-up" mode internally. Configure as floating. |
| Overheating | Section 4.3 (Thermal) | High current driver overloaded or short circuit to ground. |
Embedded interactive mini‑simulators (browser‑based, no install): ecus datasheet 3.0
A mandatory subsection labeled "Safety Manual Extract" must include: | Symptom | Datasheet Reference | Likely Cause
Example entry:
Safety Integrity: ASIL D (systematic), ASIL B (random hardware)
Safe State: Output stage tri-stated, watchdog trigger
PMHF: 8 FIT @ 125°C
"schemaVersion": "3.0",
"device":
"manufacturer": "ExampleCorp",
"model": "ECU-X100",
"hardwareId": "ECUX100-HW-1",
"software":
"version": "1.2.3",
"build": "2026-03-01"
,
"interfaces":
"can": [
"busId": "CAN1",
"baudRate": 500000,
"messages": [
"id": "0x100",
"name": "EngineStatus",
"signals": [
"name": "rpm", "startBit": 0, "length": 16, "scale": 0.125, "unit": "rpm"
]
]
]