Strange random EAS fault

benthomas · Jun 25, 2015

Well today i discovered that the random EAS fault that pops up mainly when i leave it running in park, is cleared simply by plugging the OBD Serial cable in for a second and removing it, Strange?
Only found out as when i plugged the cable in it fell straight back out and had cleared the fault.
Anyone found similar?

tomcat59alan · Jun 25, 2015

benthomas said:
Well today i discovered that the random EAS fault that pops up mainly when i leave it running in park, is cleared simply by plugging the OBD Serial cable in for a second and removing it, Strange?
Only found out as when i plugged the cable in it fell straight back out and had cleared the fault.
Anyone found similar?

Hope you tell the buyer when you sell the car, Toyota

benthomas · Jun 25, 2015

Wont sell a car with a known fault, i'll be swapping the driver pack back to the original one when i get a spare hour, its only thrown this random fault since i fitted a rebuilt spare valve block and swapped the driver pack.

Datatek · Jun 26, 2015

benthomas said:
Well today i discovered that the random EAS fault that pops up mainly when i leave it running in park, is cleared simply by plugging the OBD Serial cable in for a second and removing it, Strange?
Only found out as when i plugged the cable in it fell straight back out and had cleared the fault.
Anyone found similar?

I don't know what year your car is, but there was a resistor mod at the back of the OBD connector. I cannot remember exactly what the fault was that it cured, I'll see if I can find details.

benthomas · Jun 26, 2015

Datatek said:
I don't know what year your car is, but there was a resistor mod at the back of the OBD connector. I cannot remember exactly what the fault was that it cured, I'll see if I can find details.

It's a 98 dse, i'm sure the fault is something or nothing as when it flashes up it doesn't drop, or give the 35mph warning, as soon as i touch the OBD plug on the socket it does the beep beep beep, i unplug and 3 seconds later all is well again.
I suspected the Driver as i swapped it with the rebuilt valve block a few months back and this fault has only occurred since.
Any info you kind find would be greatly received though Keith.

Datatek · Jun 27, 2015

benthomas said:
It's a 98 dse, i'm sure the fault is something or nothing as when it flashes up it doesn't drop, or give the 35mph warning, as soon as i touch the OBD plug on the socket it does the beep beep beep, i unplug and 3 seconds later all is well again.
I suspected the Driver as i swapped it with the rebuilt valve block a few months back and this fault has only occurred since.
Any info you kind find would be greatly received though Keith.

OK, I found it, the mod doesn't affect the EAS, it's to do with the BECM failing to go into sleep mode.
I would look at the back of the OBD connector for corrosion, I can't see how the driver pack would cause that effect, although failure of the electrolytic in the driver does cause random faults.

wammers · Jun 27, 2015

Datatek said:
OK, I found it, the mod doesn't affect the EAS, it's to do with the BECM failing to go into sleep mode.
I would look at the back of the OBD connector for corrosion, I can't see how the driver pack would cause that effect, although failure of the electrolytic in the driver does cause random faults.

That mod was to cure battery drain.

Datatek · Jun 27, 2015

wammers said:
That mod was to cure battery drain.

i.e. the BECM not going to sleep as I posted

wammers · Jun 27, 2015

Datatek said:
i.e. the BECM not going to sleep as I posted

Applies to early diesel models only.

Datatek · Jun 27, 2015

wammers said:
Applies to early diesel models only.

So it say's on the LR bulletin.

wammers · Jun 27, 2015

Datatek said:
So it say's on the LR bulletin.

But some may not have the bulletin and be looking for a resistor on later models. Info is king Keith.

benthomas · Jun 27, 2015

Datatek said:
OK, I found it, the mod doesn't affect the EAS, it's to do with the BECM failing to go into sleep mode.
I would look at the back of the OBD connector for corrosion, I can't see how the driver pack would cause that effect, although failure of the electrolytic in the driver does cause random faults.

Will check the connector for corrosion as a first off, if not I've got a driver in the garage so its only an hours work to swap it over, hopefully that will be the end of it.

Strange random EAS fault

benthomas

Active Member

tomcat59alan

Well-Known Member

benthomas

Active Member

Datatek

Well-Known Member

benthomas

Active Member

Datatek

Well-Known Member

wammers

No longer with us, RIP

Datatek

Well-Known Member

wammers

No longer with us, RIP

Datatek

Well-Known Member

wammers

No longer with us, RIP

benthomas

Active Member

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