Question about Volvo V40
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Posted on Jan 02, 2017
When the airbag light (SRS) is on or blinks it means a fault has occurred in the system and the airbag diagnostic monitor has disabled the system, the most common problem that turns the light on is a break in the connection to the steering wheel mounted airbag, this is due to a rotating ribbon contact that breaks under the steering wheel that connects the airbag to the wiring harness and the diagnostic monitor, the part is called the clock spring contact, a coiled up ribbon electrical contact that turns with the steering wheel while maintaining a mechanical connection to the airgag mounted on the steering wheel, to replace this part you must disarm the airbag system and remove the steering wheel, this requires a special steering wheel puller tool and that you disarm the airbag system before you start the work, to do this disconnect the battery negative cable for 1 hour prior.
Posted on Feb 11, 2010
SOURCE: air bag warning light
It is malfunction indicator
DIAGNOSIS WITH SCAN TOOL
CHECK PROCEDURES 1. Connect the Hi-Scan Pro to the vehicle data link connector located underneath the dash panel. 2. Turn the ignition key to the "ON" position and turn on the Hi-Scan Pro . 3. Check for diagnostic trouble codes. 4. If a fault code is found, then replace the appropriate component. Never attempt to repair the component. 5. If the Hi-Scan Pro finds that a component of the system is faulty, there is a possibility that the fault is not in the components but in the SRS wiring or connector.
The SRS airbag system has sophisticated electrical and electronic components. Therefore the airbag operating components should be handled very carefully. SRSCM (Supplement Restraint System Control Module) SRSCM determines when to deploy the airbag module by sensing the frontal and side impact force through the built in sensor SRSCM.
Posted on Jun 03, 2008
the air bag light will only show if the ignition was turned on while it was disconnected.
it will defo need to be pluged into the computer to be put out but some smaller garages will have the software to do this and will be a little cheaper.here in ireland VW wanted 50euro to do mine but a small garage done it for 30euro.
you can buy code finders/reset gadgets on ebay but might not be worth it for one job compared to $130.
my suggestion would be to get the main dealer to do it if a normal automotive shop cannot access it.
Posted on Mar 01, 2009
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