Hi all, started working through the MOT fail list today, and also received an OBD2 code reader to see if I could suss why the ABS and TC lights are on. The reader is showing ‘no codes stored in module’ when I check it - surely there must be an error there? Any ideas?
ABS and TC lights on but no OBD2 codes?
- Thread starter Designosaur73
- Start date
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John Woodward
Well-known member
A "normal" scanner won't detect ABS faults, just engine faults as far as I've found, but Forscan does.
Ahhhhh…..well spose it can’t hurt to have a scanner anyway. I’ll work my way round the sensors first then see if that sorts it.
John Woodward
Well-known member
I use Forscan on an old Windows 10 netbook. The ELM 327 adapter was under £20 and the software was a free download.
https://forscan.org/home.html
Works really well.
I have FORscan demo (free) on my Android phone - should detect faults in the ABS unit - main limitation is the number of channels you can monitor. If its says no faults and you can read data from the ABS unit check the instrument panel and wiring to the warning lights.
If you cannot connect to the ABS unit check the wiring to the ABS unit and in particular the ground and any corrosion in the connector.
On most cars the ABS fault lights are fail safe - when the ignition is on the ABS unit must provide a signal to the instument panel to switch off the lights - no signal and the lights will remain on.
If you cannot connect to the ABS unit check the wiring to the ABS unit and in particular the ground and any corrosion in the connector.
On most cars the ABS fault lights are fail safe - when the ignition is on the ABS unit must provide a signal to the instument panel to switch off the lights - no signal and the lights will remain on.
Cheers for that, everything but the exhaust and ABS is now sorted so will check that out soon.
