Toyota Aygo Fog Lights: Specs, Fitment & Common Faults
On the Aygo, a genuinely useful, systematic diagnostic technique: listening for the relay click narrows down where a fault lies.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — aftermarket Valeo 088969 / Valeo 088970
| Fog light, passenger side (LH / nearside) — aftermarket | Valeo 088969 (H11, supplied with bulb, LH); Van Wezel 5407997 (H16, PGJ19, LH); Van Wezel 5432995 (H11, PGJ19-2, LH); TYC 19-12320-01-9 (H16, LH); TYC 19-5922-11-2 (H11, LH); Diederichs 6601089 (H16, LH) |
|---|---|
| Fog light, driver's side (RH / offside) — aftermarket | Valeo 088970 (H11, supplied with bulb, RH); Van Wezel 5407998 (H16, PGJ19, RH); Van Wezel 5432996 (H11, PGJ19-2, RH); TYC 19-12319-01-9 (H16, RH); TYC 19-5921-11-2 (H11, RH); Diederichs 6601088 (H16, RH) |
| Bulb types | H16 (PGJ19, PGJ19-3); H11 (PGJ19-2) |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine units against your VIN |
| Fitment notes | Both H16 and H11 lamps are listed for the AB40, so check the bulb in the existing lamp. Johns 60 22 29 (H11) fits either side. No cornering function is mentioned. |
A Genuinely Useful, Systematic Diagnostic Technique Worth Knowing — Toyota Aygo Fog Lights
If both fog lights have stopped working together with good bulbs confirmed, this is genuinely worth trying: with the fog light switch activated, listen carefully at the relay for an audible click. If you hear no click at all, the fault genuinely lies somewhere before the relay — the switch, wiring, or fuse box. If you do hear the relay click but the lights still don't illuminate, the fault lies further downstream instead.
It's also worth knowing that both front fog lights commonly share a single fuse and relay, so if only one side has failed while the other works, this points toward something specific to that one side rather than the shared circuit.
Toyota Aygo Fog Lights: Rarely Used, Easy to Forget About Until Needed
Fog lights are one of those parts on the Toyota Aygo nobody checks until they need them, and with most owners using them only a few times a year, a fault can linger unnoticed for a long time before a foggy morning finally reveals it.
Toyota Aygo Fog Lights: Watch: Replacing It
2014 Aygo fog bulb
Toyota Aygo Fog Lights: What It Does
Front fog lights are angled and positioned to illuminate the road surface in low visibility conditions without creating the glare a standard headlight beam would in fog. Some higher trims of the Aygo integrate fog lights into the same housing as cornering lights or daytime running lights, which affects both the part number and the complexity of any repair.
Fitment & Compatibility
Toyota Aygo Fog Lights: Generations & Fog Light Type
| Standard trims | Halogen fog light bulb as standard |
|---|---|
| Higher trims, later model years | LED fog lights become available further up the range, genuinely a different assembly and connector from the halogen units on lower trims |
Not every trim level of the Aygo comes with fog lights fitted as standard, and the housing design often differs between trims that have them integrated with other lighting functions and those with a standalone unit. Always confirm your specific trim's fitment before ordering. Whether you're sourcing a replacement fog lights for your Toyota Aygo from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying, and confirm you're ordering the correct side — driver's side (RH in the UK) or passenger side (LH in the UK) — since these are not interchangeable.
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Toyota Aygo Fog Lights: Common Faults, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Fog Lights Guide for common faults to check for (including exactly what fails an MOT), how easy this job is to DIY, and aftermarket advice.
More Toyota Fog Lights
The same part, covered across other Toyota models.