Airbag control unit with part number 602327100

What does the airbag control unit 602327100 do?

The airbag control unit 602327100 manages the restraint system in vehicles from Peugeot. It reads the crash sensors, determines in a crash within milliseconds which airbags and seatbelt pretensioners trigger, and monitors the system during operation. It shows faults found via the airbag warning light.

The monitoring covers supply, lines and sensors equally. Every finding ends up in the fault memory.

After an accident the unit stores crash data and locks itself.

Why does the control unit 602327100 fail?

The fault most often comes from crash data stored after an accident, even if no airbag triggered. An ordinary diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting. Airbag24 erases the crash data during repair.

The entry stays in the unit until the repair removes it.

The other causes act over a long period. Solder joints become brittle, moisture alters contacts, and electronic components age. Voltage spikes occur when the battery is weak or a vehicle is started with outside help.

How can you tell that the 602327100 is defective?

The fault shows first at the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition there may be a fault message in the instrument cluster, a diagnostic tool with no connection to the control unit, and a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

The light reports that the system has registered a deviation and therefore deserves attention.

Only reading out the fault memory shows whether the cause lies in the control unit.

Which vehicles is the 602327100 fitted in?

The airbag control unit 602327100 is fitted in these vehicles: Peugeot 206 I (1998-2003) and I Facelift (2003-2009); Peugeot 206 SW I (1998-2003) and I Facelift (2003-2009).

The following overview shows the vehicles recorded for this part number.

• Peugeot 206 I (1998-2003)
• Peugeot 206 I Facelift (2003-2009)
• Peugeot 206 SW I (1998-2003)
• Peugeot 206 SW I Facelift (2003-2009)

Compare the number on the label of the removed unit with this page, and you know it is the right unit. Also have the fault memory read out beforehand; only that result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 550 54 15 00, 602 32 73 00, 6545GP, 6547WJ, 6556N9, 9635268880.

How does the repair of the 602327100 work?

First have the fault memory read out and attach the log to the unit. Then disconnect the battery and only then remove the control unit. Afterwards create a repair order online and send the unit off well packed.

Airbag24 then checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. For testing, repair and function check at Airbag24, 3–4 working days are usually scheduled.

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 602327100 get to Airbag24?

You send the unit as a parcel or book UPS collection for an extra charge. Airbag24 sends the repaired unit back by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.