Hi all,

I’m trying to get my Honda Integra DC5 (base luxury) roadworthy in Victoria and I’m stuck on an SRS light issue.

Problem

· SRS light is constantly on (solid, no flashing)

· Car has no known accident history

Codes

· 07-2: Internal failure of SRS unit

· 12-3: Side airbag failure (passenger side)

From what I understand, 07-2 is likely secondary to 12-3, not necessarily a failed SRS module.

What I’ve Done So Far

· Cleared codes → they come back immediately (light stays on as soon as car is on, no blinking/flashing)

· Checked and reseated yellow connector under passenger seat (side airbag)

· No visible damage or corrosion in connectors

· Tried using a resistor (~2–3Ω) in the passenger seat connector (vehicle side) → Code still remains

· Disconnected driver side airbag → new code appears as expected → suggests SRS unit is responding correctly

Current Understanding

Based on this, I believe:

· Seat airbag module is likely OK

· Issue is likely wiring between SRS unit and passenger seat (floor harness)

· Possibly an open circuit or high resistance somewhere in that loom

Where I’m At Now

I’ve removed the centre console and located what I believe is the SRS unit and connectors

I’m trying to follow the service manual which says to:

Check resistance between Pin 7 (WHT/RED) and Pin 18 (WHT/GRN) on connector A (18P)

However, the connectors I’m seeing don’t match the diagram in the manual, so I’m not confident I’m probing the correct pins.

What I Need Help With

1. Has anyone had a 12-3 code on a DC5 and found the fault in the floor harness?

2. Can someone confirm the exact location of Connector A (18P) on the SRS unit or provide a photo of the correct plug/pinout?

3. Any common failure points in the wiring loom between seat and SRS unit?

4. Is there anything else I should check before assuming wiring issue?

Goal

Just trying to get the SRS light off for roadworthy, not looking to overcomplicate it.

Any help would be massively appreciated — I’m starting to hit the limits of my electrical knowledge.

Thanks!



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