03 (Mk2) Avensis T4 2.0 Vvti - Vsc, Abs And Trc Off Lights On

[blackcts]

Hi all,

Mate has an 03 (mk2) Avensis T4 2.0 VVTi and the VSC, ABS and TRC off lights are all on. I've tried scanning the car with an OBD2 reader and no fault codes appear (engine management light is not on). Anyone any ideas?

Cheers

Aidan

[telmo]

Hi all,

Mate has an 03 (mk2) Avensis T4 2.0 VVTi and the VSC, ABS and TRC off lights are all on. I've tried scanning the car with an OBD2 reader and no fault codes appear (engine management light is not on). Anyone any ideas?

Cheers

Aidan

Hi Aidan,

I came here to search an answer to the same issue, and got your thread.

My father's Mk2 ZZT250 (2007 1.6 VVTi, with 80k miles odo) every now and then show those lights on - seems only on longer trips.

New tyres, pressure ok, no wheel warping.

At the dealer, nothing was found (they did link to the OBD, of course), and pointed to a possible ABS ECU fault.

I encouraged him to wait (MOT still far away, and if lights not come on then, ok) and look for salvaged/break parts.

Did you have any further developments on this subject?

[blackcts]

Yes! It was a blown bulb! Once it was replaced the lights went out!

Best of luck getting your dads sorted, check your bulbs are working!

[telmo]

Yes! It was a blown bulb! Once it was replaced the lights went out!

Best of luck getting your dads sorted, check your bulbs are working!

Thank you for your reply. I'll check that.

Can you describe where the bulb is?

Thx again, best regards!

[blackcts]

It was one of the rear lights, bulb had gone! I would get someone to stand in front and behind the car and check they are all working!

[telmo]

Ok, although the car has very recently MOT passed, I'll check if they are working,

Thanks again for your replies on this matter!

:)

[telmo]

bulbs ok, checked last Sunday.

My father says that VSC and TRC lit, but ABS not. Happens in long journeys only.

Probably a connection to sensor, ECU, or wiring loom fault somewhere...

I'll keep up with this!

[telmo]

Bulbs ok, checked last Sunday.

My father says that VSC and TRC lit, but ABS not. Happens in long journeys only.

Probably a connection to sensor, ECU, or wiring loom fault somewhere...

I'll keep up with this!

Update (or not)

Have driven the car a few days ago, both lights VSC and TRC OFF on after 15min (more or less) driving. No ABS light, nor engine.

Dealer points again ECU, quoted about 1000euros to replace.

If it were a sensor fault (yaw) or other, ABS would lit, wouldn't it?...I think.

Any pictures of the ECU (where is located) or part number?

Thank you in advance.

[telmo]

Well, I have news on this...

Recent MOT checked, the Avensis got a Steering Misalignment no-pass.

Realigned, and MOT approved.

But for magic, the light never came since (1k miles).

[perdaniel]

Yes! It was a blown bulb! Once it was replaced the lights went out!

Best of luck getting your dads sorted, check your bulbs are working!

The exact same thing happened to me this weekend.