Changan Airbag / SRS Module Crash Data Reset — 3658100-MK03-BQ01-AA (UK Postal)
UK postal crash data reset service for Changan SRS/Airbag module part 3658100-MK03-BQ01-AA. Clear crash event data to help resolve airbag warning light where supported.
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Changan Airbag / SRS Module Crash Data Reset – 3658100-MK03-BQ01-AA
Professional UK postal service to reset crash data on Changan airbag (SRS) control modules. Use this when the airbag/SRS light stays on after an accident and diagnostics cannot clear the stored crash event.
- Part number: 3658100-MK03-BQ01-AA
- Price: £69
- Turnaround: Same / next working day once received
Vehicle Compatibility
This airbag module reset service is compatible with the following Changan vehicles equipped with part number 3658100-MK03-BQ01-AA:
Confirmed Compatible Models
- Changan Various models (2012-2023)
Compatibility Verification
Compatibility depends on your vehicle's specific hardware and software revision. To confirm fitment:
- Remove your airbag module and locate the part number label
- Match the part number exactly with 3658100-MK03-BQ01-AA
- If uncertain, send us a clear photo of your module label before ordering
- Check your vehicle's build date against the years listed above
Note: Part numbers may vary by market region (UK/EU/US), trim level, and production date. The same vehicle model may use different modules across its production run. Always verify the exact part number on your module.
Module Variants
The 3658100-MK03-BQ01-AA module may have revision codes or suffix variations (e.g., -A, -B, -M1, -M2). These typically indicate minor software or hardware revisions and are usually compatible with our reset service. Contact us if your module has additional codes not listed.
Common symptoms
SRS Warning Light On / Airbag Blocked
What’s included
- Bench identification and verification of the module
- Crash data reset / memory restore (where supported)
- Basic functional validation before return shipping
Common Fault Codes
- B0051 – Driver Airbag Deployment Commanded
- B0052 – Passenger Airbag Deployment Commanded
- B0053 – Side Airbag Deployment Commanded
- B1000 – SRS/Airbag Fault Code Guide
- B1015 – SRS/Airbag Fault Code Guide
- B1044 – Side Airbag Circuit Malfunction
- B1206 – Crash Event Recorded
- B1209 – Collision Detection Sensors
- ...and 6 additional fault codes
Note: Exact meanings are manufacturer-specific. Physical component faults require vehicle-side repair.
Technical specifications
| Erase crash data | ✔ |
|---|
How the service works
- Order online and include your part number.
- Post the module securely with your order reference.
- We reset crash data and verify the module.
- Your module is returned via tracked delivery.
Technical Specifications & Reset Process
Module Architecture
The Changan 3658100-MK03-BQ01-AA airbag control module features:
- Memory Type: R7F701A033
- Access Method: BENCH/JTAG programming
- Processor: Automotive-grade microcontroller with redundant safety systems
- Communication: High-speed CAN bus (typically 500 kbit/s)
Reset Process Details
Bench Reset Procedure
Our bench reset service involves:
- Module Reception: Secure packaging inspection and module identification
- Bench Connection: Module connected to specialized programming hardware
- Memory Reading: Complete EEPROM/Flash memory backup created
- Crash Data Identification: Location of crash flags and event data in memory map
- Data Clearing: Surgical removal of crash data while preserving calibration
- Virgin State Restoration: Module returned to pre-crash configuration
- Verification: Multiple read cycles confirm successful clearing
- Testing: Functional validation on test bench before return
What Gets Reset
- ✓ Crash event counter (deployment history)
- ✓ Hard fault flags (permanent codes)
- ✓ Crash sensor activation data
- ✓ Module lock status (if applicable)
- ✓ Error counters and diagnostic status
What Remains Unchanged
- ✓ VIN coding (vehicle identification)
- ✓ Calibration data (deployment thresholds)
- ✓ Module serial number
- ✓ Hardware configuration
- ✓ Manufacturer programming
Post-Reset Requirements
After module reset and reinstallation:
- Clear any remaining DTCs using manufacturer scan tool
- Perform airbag system self-test (procedure varies by vehicle)
- Verify all sensors and components communicate correctly
- Road test to confirm airbag light remains off
- Some vehicles may require steering angle sensor calibration
Frequently Asked Questions
Is this service compatible with all Changan vehicles?
This service is specific to the 3658100-MK03-BQ01-AA module. Changan uses different module part numbers across their range, so it's essential to verify your exact part number matches before ordering.
What if my module has a different revision code?
Minor revision codes (like -M1, -M2, -A, -B suffixes) are usually compatible. Send us a photo of your module label if you're unsure - we can confirm compatibility before you order.
How do I know if crash data is my problem?
If your airbag light came on after a collision (even minor) and won't clear with a scan tool, crash data is likely stored. A diagnostic scan showing B1015, B1000 codes often indicates crash data presence.
Do you offer mobile service in my area?
No, this is a postal service only. However, many customers find it more convenient than mobile services - you can remove the module yourself (usually 4-6 bolts) and have it back within 1-2 days via Royal Mail.
Related
How it works
- You purchase the service.
- You choose whether the courier collects your parcel or you drop it off at a drop-off point.
- You fill in the form – we'll send you the link by email.
- You pack the parcel and put a note with your order number inside.
- We perform the service and send the parcel back to your address.
Technical Specifications
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