XC90 SRS Service URGENT message

[volvo_bloke]

thanks grass hopper. any idea why sat nav would have wrong location and directions since battery reconnect?

[volvo_bloke]

thanks grass hopper. i will try and pop one in tomorrow if the main dealer carries them. any ideas why sat nav would have lost location and direction since reconnecting battery - it says it has 9 sats connected. I do not know how to do a reset.

[grass hopper]

try driving the car for 20 minutes or so,hopefully it should recalibrate.

[RoscoMac]

Had same fault on my 90 - front impact sensors. Couldn't really find a way to service them, so ended mup replacing both. Got the main dealer to the work though as didn't want to risk blowing bags! They are very easy to access on the 04/05 model years though - just remove the headlights and they are small whiteish plasticy rectangular things rivetted to the the body.

R.

[volvo_bloke]

replaced the sensor. reset the code. message gone. airbags happy. wife happy. off on hols. thanks all

[grass hopper]

happy days.

[sd1 sd1 sd1]

Originally Posted by volvo_bloke

i got it from nordic direct http://nordicpartsdirect.co.uk/

hi i have a ppc code reader telling me that i have a srs 0044 fault.
in there book it says.
SRS 0044 FRONT RIGHT SIDE AIR BAG (were is this then)
AND also with same code says also .
SRS 0044 PASSENGER SEAT BELT TENSIONERE.
this i have already changed ?
it would be great if you could help me .
steved@ninestiles.bham.sch.uk

[spokoluzik]

some of srs codes can be reseted only with Volvo computer. code READER doesn't mean you can program anything in you car. however this looks like something needs to be replaced( probably sips bag)

[aslan]

Originally Posted by RoscoMac

Had same fault on my 90 - front impact sensors. Couldn't really find a way to service them, so ended mup replacing both. Got the main dealer to the work though as didn't want to risk blowing bags! They are very easy to access on the 04/05 model years though - just remove the headlights and they are small whiteish plasticy rectangular things rivetted to the the body.

R.

I'm having faults with both front impact sensors. To the above poster, has replacing both sensors cured the problem permanently? Someone has suggested that it's a bit odd to have both front sensors bad and it maybe a wiring issue.

[SwissXC90]

Originally Posted by aslan

I'm having faults with both front impact sensors. To the above poster, has replacing both sensors cured the problem permanently? Someone has suggested that it's a bit odd to have both front sensors bad and it maybe a wiring issue.

The sensors themselves are very simple.
You may have corroded / dirty electrical connections

Disconnect battery, wait 30min, then disconnect each front crash sensor (under the headlamp assembly) and check the connectors are clean and fit with sufficient friction.
If in doubt clean with contact cleaner spray

The airbag system checks that the sensor is connected (and that the circuit is complete) by measuring the internal resistance from the SAS unit to the sensor, including the wiring, all loom connectors, and the sensor.
If the sensor is open circuit, then the sensor has failled due to corrosion etc.
Of course, the connection to the sensor must be clean and dry, otherwise it may also measure as open circuit.
So with a multimeter you can measure the sensor directly and should measure some resistance. No 0 ohms, Not open circuit. Something reasonable.

When working on airbag systems always disconnect the battery and wait for 30min for all systems to power down fully.