Airbag control unit with part number 77960-T0A-A230-M1

What does the airbag control unit 77960-T0A-A230-M1 do?

In the restraint system (SRS) of Honda, the airbag control unit 77960-T0A-A230-M1 brings together all triggering decisions. It reads the crash sensors and decides on airbags and seatbelt pretensioners within milliseconds in a crash.

It monitors the system continuously and displays faults via the airbag warning light. After an accident, it stores crash data and then locks itself.

Why does the control unit 77960-T0A-A230-M1 fail?

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

Crash data cannot be erased with a standard diagnostic tool. Ageing components and faulty solder joints cause faults that become noticeable over a longer period.

Moisture and corrosion at the plug connections impair signal transmission. Voltage peaks, such as from a weak battery or jump-starting, put additional strain on the electronics. Which cause applies in an individual case is only shown by the check.

How can you tell that the 77960-T0A-A230-M1 is defective?

A defect becomes visible at the airbag warning light, which then lights up permanently or intermittently. In an emergency, airbags and seatbelt pretensioners may then fail to trigger.

These signs occur:

• fault message in the instrument cluster
• diagnostic tool receives no connection to the control unit
• fault memory cannot be cleared
• airbag warning light lights up permanently or intermittently

The warning light reports the defect as soon as the system detects it. Do not ignore this indication.

Which vehicles is the 77960-T0A-A230-M1 fitted in?

The 77960-T0A-A230-M1 is fitted in these vehicles: Honda CR-V 4 RM (2012-2018).

The assignment to vehicles is shown in this list:

• Honda CR-V 4 RM (2012-2018)

Compare the part number on the label of the removed unit with this page, so that you have the right unit. Have the fault memory read out beforehand; this log alone 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 5WK43782, 77960-SWA-G212-M4, 77960-SWA-G214-M4, 77960-T1G-G920-M4.

How does the repair of the 77960-T0A-A230-M1 work?

Have the fault memory read out first and enclose the log. Then disconnect the battery and remove the control unit 77960-T0A-A230-M1. Afterwards create a repair order online and send the unit in well packed.

Airbag24 checks the unit, replaces defective components, erases the crash data and carries out a functional test. After the functional check, your unit goes back to you.

Processing at Airbag24 usually takes 3–4 working days. This period covers checking, repairing and testing only.

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-T0A-A230-M1 get to Airbag24?

The unit gets to Airbag24 by parcel, or by a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

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