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SRS (Airbag) Diagnostic
Typical Cost: Low
Mobile Repair? Yes
Typical Lead Time: 2 - 24 Hours
What is an SRS (Airbag) Fault Diagnostic?
When a fault appears in the SRS (Supplemental Restraint System), a warning light will appear on the dashboard.
What triggers an SRS warning light?
When the ignition is switched on, the SRS control unit (ECU) will check communication with all the airbag units around the vehicle, the trigger mechanism and seat belt tensioners etc. If communication is satisfied then the light will extinguish,
However, if the return signal from one of the units is not received, or it picks up information that is out of the expected range, then the light will remain on.
What are the potential causes of an SRS warning light?
There is a wide range of error codes that can be received by the SRS ECU, the number depending on the vehicle you have. However there are a few common ones that can trigger it.
* Steering Wheel Clock Spring; This is the ribbon mechanism which is behind the steering wheel that contains the wires to the drivers airbag. Like a clock spring, they wind and unwind as the steering wheel turns and whilst fairly flexible, after a time they can become brittle and crack
* Under Seat Connection; There is a connector block under the front seats that connects the wires in the seat SRS components to the vehicles wiring loom. These have to be flexible as the seat needs to be adjusted for position of the occupant and over time they can work loose, especially on 3 door vehicles where the seat are pushed forward to allow access for the rear passengers.
What happens during an SRS Fault Diagnostic
*The mechanic will plug into the SRS system though your vehicle's diagnostic port.
* They will then scan the system for the error code.
* Once a list of the codes has been identified and recorded, they will clear the codes and retest.
* The remaining error codes will then dictate the next course of action
* If there are communication error codes, where possible, the mechanic will check the connections.
* If the connections are fine, then the mechanic will quote you on the required repairs.
* If the SRS light remains off after the clearing of the codes, it may have been a temporary fault in which no additional action needs to be taken.
What does this diagnostic cover?
Unless otherwise stated, the quote for the diagnostic will cover;
- Coming to you
- Up to an hour with the vehicle
- Repairs that do not need parts or additional labour
- VAT (if applicable)
- 12 months parts and labour warranty
What to search for on the ClickMechanic site?
SRS/Airbags Inspection
How much does it cost to have an SRS (Airbag) diagnostic?
The cost depends on your car and your location.
Find out what you could save by visiting ClickMechanic
https://www.clickmechanic.com/jobs/airbag-inspection
FAQ’s
Can I supply my own parts?
No, we will not fit customer supplied parts unless they are a brand new item, purchased from a dealership with the receipt as proof of purchase. There is no flexibility over this due to insurance and warranty issues.