SRS airbag sensor return spring for select Mitsubishi vehicles ️
This precision coil is the small but critical heart inside the front crash/impact sensor of the Supplemental Restraint System. Its job is to preload the sensing element, stabilize the signal over bumps, and snap the mechanism back to a neutral position after vibration or a shock. Without the right spring force, the sensor can’t judge a real impact from road noise.
Why you need it ✅
The correct spring keeps airbag deployment thresholds accurate, prevents false triggers, and ensures airbags deploy fast during a real collision. It restores factory feel to an aging sensor where fatigue or corrosion has reduced preload.
How it works ⚙️
A calibrated steel coil presses against the sensing mass or contact pack. During a crash, acceleration over the set threshold moves the mass; the spring controls timing, filters vibration, and returns the assembly to zero. Heat-treated, anti-corrosion material holds its rate across temperature for consistent SRS performance.
What happens if it’s bad ⚠️
SRS warning lamp on, stored fault codes, intermittent alerts, or a rattling sensor. Worst case: delayed or no airbag deployment, or rare false alarms. Vehicle may fail safety inspection.
Installation tips
Disconnect battery and wait 10 minutes. Handle SRS parts with care, no static. Seat the spring in the correct orientation, torque sensor bolts to spec, then clear DTCs and run an SRS self-test with a scan tool. Replace any damaged sensor; never stretch, bend, or cut the spring.
Compatibility
- Mirage
- Mirage/Space Star
- Outlander Phev
- Rvr
- Outlander
- Asx
- Triton
- L200
- Strada
