Avensis Vvti Abs Prob

[roja2363]

hi there ive recently bought a 1.8 vvti. the problem is tha abs light sometimes comes on when i start it and remains on!!!!!

any ideas????? cheers

[Beagh1958]

Unless you can see something clearly wrong with system ie: wiring loom, exciter ring, sensors etc etc. You really need some ERROR CODES otherwise its pure guesswork & guesswork can be very pricey.

[jolorna]

i have noticed my abs and tcs light come back on again for a about 10 seconds after starting the car on a very cold morning 54 plate avensis

[tgoacher]

Unless you can see something clearly wrong with system ie: wiring loom, exciter ring, sensors etc etc. You really need some ERROR CODES otherwise its pure guesswork & guesswork can be very pricey.

I have managed to obtain ABS codes by sohrting pins 4 and 13 on the OBD2 socket after the ignition and have a code. But does anyone have an error code table?

[Beagh1958]

To tgoacher,

Have disc with most codes, if you supply me with code i will try & help out.

Regards, Beagh.

[Beagh1958]

Sorry, should of asked for year of car exact model & engine size. Regards, Beagh.

[tgoacher]

Sorry, should of asked for year of car exact model & engine size. Regards, Beagh.

Hi Beagh.

Its an '03 2.0L VVti T3-X with a Bosch ABS unit. Code returned is 35. I've seen this code as several things

on the web (for different Bosch units) so a definitive answer would be very helpful!

TIA

Tony

[Beagh1958]

To goacher,

Sorry for delay in answer, your car is an Avensis MK2 & not a Avensis MK1 ? You seem to have produced a flash code rather than a PO code ex: P000 = no faults found. Code 35 is a flash code?? Autodata showing your car to have engine designation nu: 1AZ-FSE , could you confirm this for me please. I seem to have some protocal problem with tester ( and its no cheep rubbish of eBay) must admit i am stumped at this moment in time. Code 35 showing as possible turbo fault.

[tgoacher]

To goacher,

Sorry for delay in answer, your car is an Avensis MK2 & not a Avensis MK1 ? You seem to have produced a flash code rather than a PO code ex: P000 = no faults found. Code 35 is a flash code?? Autodata showing your car to have engine designation nu: 1AZ-FSE , could you confirm this for me please. I seem to have some protocal problem with tester ( and its no cheep rubbish of eBay) must admit i am stumped at this moment in time. Code 35 showing as possible turbo fault.

To Beagh1958

To confirm it is a Mk2 and the code is a flash code obtained by shorting pins 4 & 13 on the OBDII connector. I'll check the engine designator on Fri when it's light and I have the day off. Your input is very much appreciated.

THANKS!

Tony

[GT4 BOOSTER]

old toyota code but abs may still be the same codes??

35 — Open in left front or right rear wheel speed sensor (WSS) circuit.

could just be muck/dirt on the ring gear on drive shaft end.

[Beagh1958]

To goacher,

Would tend to go along with GT4 BOOSTER form some code charts i found. Your car is for certain OBD11 compliant or latest canbus protocal. I was worried that i had spent a packet & purchased a pile of pricey worthless junk, after using old Sykes & Pickavant kit for years without a problem. Try www.talktomycar.co.uk for code readers of different qualities from £30 up to thousands.

Apoligies for not being more helpful.

[tgoacher]

To Beagh1958

I get the feeling that the ABS controller is not on the CAN bus (why would it flash error codes on the TRC/ABS/VSC lights if it was) and having to

short out a couple of OBDII pins to get it to do so reinforces this. Just my thoughts though.

To GT4Turbo

Thanks for that, I'll have a closer look at the wheel sensors. I've metered them out and they seem to be OK, but there might be some rubbish internally. I hope you are right as I don't fancy replacing the ABS controll unit. Dealer quoted me £1500 although I have found a company that does reconditioned units its getting it fitted.

I'll let you all know.

Thanks agin

Tony

[Beagh1958]

To goagher,

A lot of people are under the impression that a code reader will give them the exact fault, this is not the case, code readers give you a code that you then must follow up to find specific fault. A prime example would be P0042 which can be oxygen sensor, wiring or ECM module, it's at this point you have to go looking for fault.

This is the point when dealers are helpful as they have the hardware & software specific to Toyota range that unless you have top end diagnostic tools it's very hard to pin point fault. Also as suggested in earlier posting you will see company that sell diagnostic equipment that test all circuits, MIL, ABS & Air bags as an example. A lot of people purchase code readers without knowing tool will not cover all of the above circuits. I have a new code reader that put a series dent in my wallet & i still got caught out, your always learning. I use tool in conjunction with "Autodata CD2" but due to new tool i will have to upgrade disc to CD3 which covers all aspects of car.

Should have kept the sykes unit. I will try & use disc to give you a more specific answer by using other earlier Toyota models which worked via flash codes to see if i can produce code 35 & give you a more specific answer.

Have just checked code chart for Abs faults with new tool & stopped counting at 40. You might try looking at exciter rings at each wheel for missing tooth & if you have AVO meter check for continuity of each sensor wire via ohms facility.

As to Canbus its just a protocal used, but as above you would require code reader that that covers MIL , ABS & all other different circuits. Sorry i cannot be of more help at this moment in time. Let us know how you get on.

Regards, Beagh.

[tgoacher]

To Beagh

Finally got this sorted. I metered both rear sensors and they seemed ok but could not do the front ones as

there is no socket at the sensor, only a wire which disappears into the engine bay.

After some further checks on Bosch ABS I found that they have a network of service centres accross the UK which specialise in fixing Bosch car bits. I used the Bosch site to find one near me and they immediately found it was the OSF wheel sensor.

They got me a replacement over the weekend gave me the choice of Bosch part from Germany for Monday or same part from Toyota for Tuesday for £50 more (and gave me a free courtesy car too ). All sorted now for £89 + labour+ vat.

Question is, why couldn't the dealership have done this diagnostic? They must have the same test gear. They are either lazy or incompetent.

Tony