Airbag control unit with part number P04759742

What does the airbag control unit P04759742 do?

The airbag control unit P04759742 governs the restraint system (SRS) of Chrysler. It evaluates the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered.

In addition, the unit checks the system components during operation. If it finds a fault, it indicates this via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit P04759742 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered. Other causes include aged electronics, cold solder joints, moisture with corrosion at plug connections, and voltage spikes from a weak battery or a jump start.

A diagnostic tool cannot erase the crash data. Airbag24 takes over this step during the repair.

Further causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weakened battery

How can you tell that the P04759742 is defective?

Typical signs are an airbag warning light that stays on or flickers, an error message in the instrument cluster, a diagnostic tool without connection to the control unit, and a fault memory that cannot be cleared. In such cases the airbags and seatbelt pretensioners may not trigger in an emergency.

Above all the warning light calls for action, because it signals a fault in the restraint system directly in the instrument cluster.

If the diagnostic tool cannot connect, this does not necessarily lie with the control unit itself. Plugs, wiring and the power supply are also possible causes, and only the readout of the fault memory shows what is actually present.

Which vehicles is the P04759742 fitted in?

The control unit P04759742 belongs to these vehicles: Chrysler Vision LH (1993-1997). The assignment comes from our records for this part number.

Here we list the vehicles for which the part number is on record.

• Chrysler Vision LH (1993-1997)

Compare the part number on the label of the removed unit with this page. This confirms that you have the right unit. Have the fault memory read out beforehand as well, because this log shows whether the control unit is defective or whether a plug or cable is the cause.

How does the repair of the P04759742 work?

First have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit P04759742 before you create the repair order online. Afterwards Airbag24 takes over: inspection, repair of defective components, deletion of crash data and a function test.

The sequence is prescribed for safety reasons, because the readout documents the condition and only the disconnected battery makes removal harmless.

Processing at Airbag24 usually takes 3–4 working days. Your own unit is sent back afterwards.

Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit P04759742 get to Airbag24?

The unit reaches Airbag24 either as a parcel or with a UPS collection, which you book for an extra charge. The return after the repair is by UPS.

Place the printed repair order in the parcel and pack the unit shock-proof.