Airbag Warning Light

Aly Diagnostician Congo City, Congo Posted   Latest  
Resolved
Electrical
2014 Porsche Cayenne Turbo 4.8L 8-spd
Airbag Waring Light B101813 And B101913

HI,

I have porsche cayenne 2014 with airbag light on​.​airbag module have 2 faults code:

B101813:rear driver side airbag crash sensor circuit open.

B101913:rear passenger side airbag sensor (crash) circuit open.

how i can confirm if i have wiring problem or ecu save an accident ?

plz advice and help.

thanks

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Chuck Diagnostician
Jacksonvilee, Florida
Chuck Default
 

I don’t think you have an ECU problem. review wiring schematics and look for what is common between driver and passenger side impact sensor, review repair history, has work been done that could potentially left a connection compromised. it looks like the SRS ECU is doing its job telling you it cant see the sensors it expects to see

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Roberto Diagnostician
Woburn, Massachusetts
Roberto Default
 

Try to use an airbag simulator with right resistor in place, clear the codes and if they go away you can determine wiring integrity.

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Aly Diagnostician
Congo City, Congo
Aly Default
 

Hi Roberto, Airbag impact sensor possible to bypass?! do you know how many ohms should be the resistor?! thanks.

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Roberto Diagnostician
Woburn, Massachusetts
Roberto Default
 

With a scan tool check on the data list the value on the other 2 sensors. That can give you a good idea. Or try to swap sensors with a known good.

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Robert Diagnostician
Fair Oaks, California
Robert Default
 

Try putting Stabilant 22 on the connections at the sensor. An open could could be the same thing as reading 3 ohms too high on some cars. Micro fretting on the connections could cause just that. Stabilant 22 will overcome the Micro fretting.

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Aly Diagnostician
Congo City, Congo
Aly Resolution
 

Hi, solved ,I replace the 2 rear crash sensors then faults was cleared. thanks for your assistance.

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