Parts for your 2006 Toyota Bb-Tail lights

2006 Toyota bB tail-lights: what they do and how to look after them

Tail-lights are absolutely fitted and relevant on the 2006 Toyota bB. This is confirmed by Toyota’s service literature for the bB (QNC20/21/25 series) including the Electrical Wiring Diagram and Repair Manual, which specify a rear combination lamp with tail, stop, indicator, and reverse functions. They’re also mandated by road standards such as Australia’s ADR 13/00 (lighting installation) and New Zealand’s Land Transport Rule: Vehicle Lighting 2004, so every compliant 2006 bB runs tail-lights as standard equipment.

On the bB, the tail-lights do the heavy lifting for rear visibility at night and in low light. They glow red so other road users can pick out the vehicle’s width and position, and they’re housed within the rear combination assemblies alongside brake and indicator lights. Clear, correctly coloured lenses and the right bulbs keep the car legal and easy to spot, without dazzling anyone behind.

Looking after the tail-lights is simple and well worth it. A quick check whenever refuelling helps catch a blown globe early. Keep the lenses clean with a mild car shampoo and a soft cloth—harsh solvents can cloud the plastic. If there’s condensation inside, the housing seal might be tired, fix that promptly to protect the bulb holders and wiring from corrosion.

• Test all rear lights: tail, brake, indicators, reverse, and number plate lamps.
• Clean lenses and check for cracks or UV hazing, replace if badly yellowed.
• Inspect gaskets and vent caps, reseal or replace to stop moisture ingress.
• Check earth points and connectors for corrosion if a lamp is dim or flickers.

When replacing bulbs, match the correct type and wattage listed for your specific trim—Toyota documentation commonly specifies dual-filament stop/tail globes and dedicated indicator bulbs, but variants exist. If fitting halogen globes, avoid touching the glass. Test the lamps before refitting the trim, and make sure the housing seals seat properly. Many owners upgrade to LED globes for longevity, that’s fine if they’re the right colour and brightness, don’t trigger bulb-out warnings, and comply with ADR/NZ rules. If in doubt, stick with quality, OEM-spec bulbs and replace them in pairs so brightness stays even side to side.

Popular questions about 2006 Toyota bB tail-lights

What bulb types does a 2006 Toyota bB use for the tail-lights?
Most 2006 bB models use a dual-filament bulb for the stop/tail function plus dedicated indicator and reverse bulbs. Common equivalents include 7443 (W21/5W) for stop/tail, 7440A (WY21W amber) for indicators, and W16W for reverse. Always confirm against the owner’s manual or by checking the existing globes, as variants exist by market and trim.

Why is one tail-light dimmer than the other?
A dim tail-light is often an ageing globe, a dirty or hazed lens, or a poor earth connection. Check the bulb first, then clean the lens. If it’s still dim, inspect the wiring plug and the earth point for corrosion and fix any dodgy contacts.

Can I upgrade my 2006 bB to LED tail-light bulbs?
Yes, provided the LEDs are the correct colour, brightness, and fitment, and they comply with ADR/NZ lighting rules. Some indicators may need load resistors to prevent hyper-flash. Choose reputable, road-legal LEDs and verify operation before hitting the road.