Airbag control unit with part number 77960-SJC-X210-M1

What does the airbag control unit 77960-SJC-X210-M1 do?

The airbag control unit 77960-SJC-X210-M1 coordinates the restraint system (SRS) in Honda vehicles. It processes the messages from the crash sensors and, in an emergency, determines within milliseconds which airbags and seatbelt pretensioners fire.

During operation the unit checks all components of the system. A fault detected appears via the airbag warning light in the instrument cluster.

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

Why does the control unit 77960-SJC-X210-M1 fail?

Crash data from an earlier accident is the most common cause when the control unit 77960-SJC-X210-M1 fails, even when no airbag has deployed. A common diagnostic tool does not erase it. Other causes include ageing electronics, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes.

Crash data is an obvious reason, but it cannot be removed by trying things out. Other causes are listed briefly:

• ageing electronic components
• cold solder joints
• moisture and corrosion on plug connections
• voltage spikes, for example with a weak battery or jump-starting

Which of these applies is established only by the test. You can have the fault memory read out in advance.

How can you tell that the 77960-SJC-X210-M1 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and an error message appears in the instrument cluster. In addition, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be emptied.

The signs can also be observed in combination. As soon as one of them occurs, do not leave it unobserved.

Airbags and seatbelt pretensioners may then possibly fail to deploy in an emergency. The warning light reports the defect, which means you are informed of it.

Which vehicles is the 77960-SJC-X210-M1 fitted in?

The control unit 77960-SJC-X210-M1 is fitted in these vehicles: Honda Ridgeline 1st generation (2005-2014).

You will find the matching vehicles in this overview:

• Honda Ridgeline 1st generation (2005-2014)

Match the part number on the label of the removed unit against this page to identify the correct unit. Have the fault memory read out beforehand to establish whether the control unit itself is defective. A plug or a cable can be the cause as well.

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-X210-M1 work?

First have the fault memory read out and attach the log. Then disconnect the battery and only afterwards remove the control unit 77960-SJC-X210-M1. Airbag24 checks the unit, and processing usually takes 3–4 working days.

Afterwards create a repair order online and pack the unit well before sending it. Airbag24 checks it on the test bench, replaces defective components, deletes stored crash data and tests the function. Then your own unit is returned 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-X210-M1 get to Airbag24?

You send the control unit 77960-SJC-X210-M1 as a parcel or book a collection by UPS for an extra charge. After the repair, Airbag24 sends it back to you via UPS.

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