Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Crash Simulation / Restraint System Test Module |
| Manufacturer | Autoliv |
| Series | Sim.Mod. (Simulation Module) |
| Primary Function | Simulates collision events, crash sensor signals, and vehicle states for airbag/SRS system validation |
| Input Voltage | 12 VDC |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Trigger Time | < 10 ms |
| Trigger Current | > 1.5 A |
| Supported Interfaces | CAN bus, LIN bus, analog I/O, digital I/O |
| Supported Protocols | CAN, LIN, Ethernet |
| Real-Time Capability | Real-time data analysis and feedback for live test monitoring |
| Simulation Accuracy | High-precision signal simulation for reliable test results |
| Applicable Systems | Airbag control units (ACU), seatbelt pretensioners, occupant classification systems |
| Compatibility | Global universal model — designed to work across multiple vehicle platforms |
| Hot-Swap Capable | Yes (per distributor listings) |
Product Introduction
I’ve spent time on test benches where engineers are trying to validate an airbag control unit without actually crashing a car — and that’s exactly what the Autoliv Sim.Mod. B0760 627913600B was built for. It’s not a module you’d find installed in a production vehicle. It’s a simulation and test tool used in R&D labs, validation facilities, and production test cells to replicate crash sensor signals and vehicle states so that restraint system ECUs can be exercised and verified under controlled conditions.What makes this module valuable is the combination of real-time performance and multi-protocol support. It can simulate the exact electrical signatures that a crash sensor would produce during a collision — the voltage spike, the current profile, the timing — and push those signals over CAN bus, LIN bus, or direct analog/digital I/O to the ECU under test. The <10ms trigger time matters because real crash events unfold in milliseconds, and the test simulator needs to match that timing fidelity. The >1.5A trigger current capability means it can drive actual squib loads or simulate them accurately. One thing I’ll flag: this is not a general-purpose signal generator. It’s purpose-built for automotive restraint system testing. If you’re using it outside that context, verify the signal profiles match your application.
Quality SOP & Tech Pitfalls
The Lab Report (SOP): Here’s our pre-shipment protocol for every B0760 627913600B. Visual inspection first — we’re checking for burnt traces, swollen capacitors, corrosion on the CAN/LIN connectors, and any physical damage to the housing. Then it goes on the test bench. We apply 12 VDC and verify the module powers up without drawing excessive current. We connect it to a CAN bus analyzer and verify it can transmit and receive CAN frames at standard automotive speeds (250 kbps and 500 kbps). We simulate a trigger event and measure the response time with an oscilloscope to confirm it’s under 10ms. We verify the trigger current capability exceeds 1.5A using a controlled load. We check the LIN bus interface for proper wakeup and communication. We log any revision codes visible on the PCB or housing. Finally, it gets sealed in anti-static packaging. If any interface fails, it doesn’t ship.The Engineer’s Warning (Pitfalls): Two things will cause test failures with this module. First, CAN bus termination. I’ve seen engineers connect this module to a test bench CAN network and get nothing but error frames because the 120-ohm termination resistor was missing at one end of the bus. CAN bus requires proper termination at both ends. If your test bench doesn’t have it built in, add a 120-ohm resistor between CAN_H and CAN_L at the module end. Second, trigger current mismatch. The module specifies >1.5A trigger current. If you’re driving a real squib or a load simulator that requires more than 1.5A, the module may not be able to deliver enough current, and your test will fail. Verify the load impedance before you connect. Also, the operating temperature range is -40°C to +85°C. If you’re running this in an environmental chamber, don’t exceed those limits — the internal electronics are not rated for higher temperatures.
Installation & Configuration Guide
- Pre-Installation: ⚠️ Disconnect all power sources to the test bench. Verify zero energy with a multimeter. Photograph the existing wiring, connector pinouts, and any DIP switch or jumper positions on the old module. Download the current test configuration from the test bench controller if accessible.
- Removal: Label every cable at the connector, not just the wire. Note which interface (CAN, LIN, analog, digital) each cable connects to. Disconnect all cables first, then release the mounting hardware. Keep the old module — do not discard it until the replacement is verified operational.
- Installation: ⚠️ This step prevents 80% of test bench failures: Before connecting any cables, verify the CAN bus termination. If the test bench doesn’t have built-in termination, install a 120-ohm resistor between CAN_H and CAN_L at the module’s CAN connector. Mount the new B0760 627913600B in the same location as the old unit. Reconnect cables using your labels — CAN bus, LIN bus, analog I/O, digital I/O, and power last. Double-check every connector for proper seating.
- Power-On & Testing: Apply 12 VDC power. Verify the module powers up — look for a status LED or indicator. Connect a CAN bus analyzer and verify the module is communicating on the bus. Run a known test sequence and compare the output signals against the expected profiles. Verify the trigger time is under 10ms using an oscilloscope. If the module fails to communicate or the trigger time is out of spec, check the wiring and termination before proceeding.
Compatible Replacement Models
- ✅ Drop-in Replacement: B0760 627913600B (same revision). If your existing unit is a B0760 627913600B, this is a direct swap. Same interfaces, same signal profiles, same test configuration. Zero reprogramming needed.
- ⚠️ Software Compatible: MPC SubM MPC-A0850 630096600A (listed as a related/sub-module in some distributor catalogs). This appears to be a sub-module or variant in the same Autoliv simulation family. The core function is similar, but the interface count or signal profiles may differ. Verify compatibility against your test bench documentation before ordering. Budget 1-2 hours for configuration adjustment.
- ❌ Hardware Mod Required: Any module outside the Autoliv Sim.Mod. series. Generic signal generators, CAN interface cards from other manufacturers, or modules from unrelated product families cannot replicate the specific crash signal profiles this module produces. Do not attempt a cross-family substitution unless you are redesigning the entire test bench with a qualified engineer.
Frequently Asked Questions (FAQ)
Can I hot-swap this module?
Distributor listings indicate hot-swap capability, but I don’t recommend it on a live test bench. You’ll interrupt communication with the ECU under test and may corrupt the test sequence. Schedule a maintenance window and follow the installation procedure.What’s the exact CAN bus speed supported?
The module supports CAN bus communication, but the OEM documentation doesn’t consistently publish a single maximum speed. Standard automotive CAN operates at 250 kbps and 500 kbps. Verify the exact supported speeds against the module nameplate or the official Autoliv technical documentation for your specific revision.Can I use this to test non-Autoliv airbag ECUs?
Yes, in principle. The module simulates generic crash sensor signals and vehicle states. However, the signal profiles are tuned for Autoliv restraint systems. If you’re testing a different manufacturer’s ECU, verify that the simulated signal timing, voltage levels, and current profiles match the target ECU’s specifications.What happens if the trigger current is insufficient?
If the load requires more than 1.5A and the module can’t deliver it, the trigger event will fail — the squib won’t fire, or the simulated signal won’t reach the required amplitude. Measure the load impedance before connecting and ensure it’s within the module’s capability.Does this module store test data?
The module provides real-time data analysis and feedback, but it’s not a data logger. It’s designed to generate signals and monitor responses in real time. If you need to store test results, use the test bench controller or a separate data acquisition system.How do I verify the module is functioning correctly?
Connect a CAN bus analyzer and verify communication. Run a known test sequence and compare the output against expected signal profiles. Use an oscilloscope to measure trigger time (<10ms) and trigger current (>1.5A). If all parameters are within spec, the module is functioning correctly.
