2006 HDJ100 Instrument Cluster - No Warning Lights / No Bulb Check, Horn Dead, Steering Wheel Buttons & Lights Not Working

[Jre]

Hi all,

I'm having an issue with the instrument cluster in my 2006 Land Cruiser 100 series (HDJ100, 4.2L turbo-diesel, LHD, EU-spec, VIN: JTEHC05J50402....). Hoping someone here has seen something similar and can point me in the right direction.

Problem description:

• When I turn the key to the ignition-on position (without starting the engine), none of the warning lights come on at all (e.g., no bulb check sequence).
• Specific examples: If the fuel tank is empty/low, the low fuel warning light doesn't illuminate. When I engage the diff locker, the indicator light doesn't come on.
• However, the main gauges work fine: speedometer/odometer, tachometer, and temperature gauge all function normally.
• When I turn on the headlights, the headlight indicator light does come on, and the turn signal indicators in the cluster work as expected.
• Additionally, my horn no longer works. The buttons on the steering wheel (like cruise control or whatever else is there) are non-functional and don't light up anymore.

Everything else on the dash seems okay, and the vehicle runs fine otherwise. I've checked fuses and basic connections but no luck so far. something related to the steering column/clock spring since the horn and steering buttons are affected?

Has anyone experienced this exact combo of symptoms on a 100 series, especially the diesel models? Any common fixes, DIY tips, or recommended parts/specialists (I'm in Europe, so EU-friendly suggestions appreciated)?

Thanks in advance for any help!