Airbag control unit with part number 77960-SJC-X211-M1

What does the airbag control unit 77960-SJC-X211-M1 do?

The airbag control unit 77960-SJC-X211-M1 forms the central control unit of the SRS in Honda vehicles. It evaluates the crash sensors and decides in an emergency, within milliseconds, which airbags and seatbelt pretensioners are triggered.

It also monitors the restraint system without interruption. Detected faults are passed on via the airbag warning light.

After an accident the unit records crash data and locks itself. You should expect this with the unit.

Why does the control unit 77960-SJC-X211-M1 fail?

Stored crash data after an accident is the most common cause, even without a triggered airbag. An ordinary diagnostic tool does not erase it. Other causes are ageing components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The crash data remains in the memory until it is deliberately removed. This explains why a unit stays conspicuous even after being read out.

Ageing components and cold solder joints lead to contact problems. Moisture at plug connections intensifies this over time.

How can you tell that the 77960-SJC-X211-M1 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently. In addition, an error message appears, and the diagnostic tool cannot reach the control unit. In that case airbags and seatbelt pretensioners may fail to deploy in a crash.

A fault memory that cannot be cleared is a further indication of a fault.

Which vehicles is the 77960-SJC-X211-M1 fitted in?

The 77960-SJC-X211-M1 is fitted in these vehicles: Honda Ridgeline 1st generation (2005-2014).

The list shows the vehicles for which this part number is stored.

• Honda Ridgeline 1st generation (2005-2014)

Compare the part number on the label of the removed unit with this page. This only clarifies whether the unit fits. Have the fault memory read out beforehand, because the log 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 77960-T6Z-A01, 77960-T6Z-A02, 77960-T6Z-A03, 77960SJCA210M1, 77960T6ZA030M2.

How does the repair of the 77960-SJC-X211-M1 work?

You have the fault memory read out and enclose the log. Then disconnect the battery, afterwards remove the control unit and create a repair order online. Only then do you send the well-packed unit in. Airbag24 needs 3–4 working days in total for checking, repairing and testing.

At Airbag24 the unit is checked on the test bench, defective components are renewed, crash data are erased and a function test is carried out. Afterwards the unit goes 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 77960-SJC-X211-M1 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns the control unit 77960-SJC-X211-M1 by UPS.

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