Airbag control unit with part number 9653493080

What does the airbag control unit 9653493080 do?

The airbag control unit 9653493080 is the central control unit of the restraint system (SRS) for Peugeot. It evaluates the crash sensors and decides in a crash which airbags and seatbelt pretensioners are triggered.

This happens within fractions of a second. In addition, the unit monitors the system continuously.

If it detects a fault, it shows this via the airbag warning light. After an accident, it stores crash data and locks itself; only the repair lifts this lock again.

Why does the control unit 9653493080 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. Further causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data remains in the unit, and an ordinary diagnostic tool cannot erase it. Airbag24 erases it during the repair.

Ageing electronic components and cold solder joints can disturb the function. Moisture and corrosion attack plug connections and worsen the contact.

Voltage spikes also stress the electronics, for example through a weak battery or a jump start. The test shows which cause is present.

How can you tell that the 9653493080 is defective?

A fault in the 9653493080 shows on the airbag warning light, on error messages in the instrument cluster, on a diagnostic tool without a connection, or on a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

• Airbag warning light in the instrument cluster lights up permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool receives no connection to the control unit
• Fault memory cannot be cleared

These signs are reason enough to have the finding clarified promptly.

The warning light shows the fault and is therefore a central warning within the system.

Which vehicles is the 9653493080 fitted in?

The 9653493080 is fitted in these vehicles: Peugeot 307 I (2001-2005) and I Facelift (2005-2009); Peugeot 307 SW I (2001-2005) and I Facelift (2005-2009).

The following list names the vehicles we have on record for this part number:

• Peugeot 307 I (2001-2005)
• Peugeot 307 I Facelift (2005-2009)
• Peugeot 307 SW I (2001-2005)
• Peugeot 307 SW I Facelift (2005-2009)

Compare the part number on the label of the removed unit with this page, so that you can clearly confirm you have the right unit. Also have the fault memory read out in advance, because only this 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 6545HE, 6545HF, 6545HJ, 9650109280, 9650109480, 9652712180.

How does the repair of the 9653493080 work?

The repair of the 9653493080 begins with the fault memory, followed by disconnecting the battery and removal. At Airbag24, testing, repair and function test usually take 3–4 working days.

Have the fault memory read out and attach the log to the unit. Then disconnect the battery and only afterwards remove the control unit. Create the repair order online and send in the well-packed unit.

Airbag24 tests the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. After that your own unit comes back to you.

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 9653493080 get to Airbag24?

You send the control unit 9653493080 as a parcel, or you book a UPS collection for an extra charge. Airbag24 sends your own unit back by UPS after the repair.

Put the printed repair order into the parcel. Pack the unit shock-proof.