Bmw Serie 4, 84 airbag fault code :
This page is about Bmw Serie 4 air bag problem code 84.
The possible SRS 84 airbag error reason/s;
Intermittent or Repaired RH Radiator Primary Crash Sensor Not Mounted to Vehicle
Sensor for side airbag right
#84 Airbag Code Repair order ("Recheck SRS at each replacement.")
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How to disable Bmw Serie 4 airbag module ?
- Remove ash tray from console panel
- Using a socket set, remove 4 hex head screws from console panel
- Pull console panel out of the two clips
- Remove connector from Passenger Airbag Disable module in console panel and take console panel to a work bench
- Remove 2 phillips head screws to remove the airbag key module
- Carefully unclip the plastic tabs that hold the airbag key module case together
- Remove circuit board from airbag key module housing
- To prepare the module housing I drilled a 1/4" hole through the clear lens allowing my particular LED to be attached through that hole
- Now carefully unsolder the blown light bulb
- Then you are able to solder on the new LED *polarity matters* with that in mind the negative on the circuit board is closest to the outer edge of the circuit board
- Reassemble the PAD Module and put it back into the console panel and then put everything back together on the dash in the reverse order of removal.
![Airbag In Car](https://airbagcode.com/images/airbag-in-car.jpg)
How to clear Bmw Serie 4 84 airbag code ?
- Follow the diagnostic procedures to service the fault condition flashing on the air bag indicator prior to code clearing.
- Cycle the ignition switch to OFF and then to RUN.
- Observe air bag indicator prove-out (six ? two seconds) followed by diagnostic trouble code (52-85) flashing completely one time.
- Locate the Diagnostic "Trouble Code Clear" Connector (grey connector). located underneath the glove compartment, left side (06010) containing Circuits 631 (T/R) and 57 (BK).
- Use a jumper wire to short Circuit 631 (T/R) to Circuit 57 (BK) or to another good ground. This short must be made after the diagnostic trouble code flashes completely one time, but before the warning light stays on continuously.
- Hold short until air bag diagnostic monitor tone sounds (approximately five seconds).
- Release short on Circuit 631 (T/R) to Circuit 57 (BK). This short must be released within 25 seconds after the diagnostic monitor tone sounds.