P38A Brake light is permanently on

Datatek · May 1, 2025

Frank_38 said:
moment please, I have replaced the accumulator. Everything is great, but when I start the car, ABS and TC errors come up immediately. I thought that by replacing the accumulator I would also get rid of the errors.
Does the ABS/TC error now have to be reset via software?

The ABS/TC lights coming on immediately at start up is normal. They do not go out until the vehicle speed exceeds 5mph.

kermit_rr · May 1, 2025

Datatek said:
The ABS/TC lights coming on immediately at start up is normal. They do not go out until the vehicle speed exceeds 5mph.

The abs light comes on at engine start.
The abs and tc lights come on if the pressure is too low. Then the tc light goes out but abs stays on once the pressure builds.

Datatek · May 1, 2025

kermit_rr said:
The abs light comes on at engine start.
The abs and tc lights come on if the pressure is too low. Then the tc light goes out but abs stays on once the pressure builds.

Not sure about that, I will check tomorrow.

kermit_rr · May 1, 2025

Datatek said:
Not sure about that, I will check tomorrow.

If you start the engine and let the pump cut off, only the abs light should be on at that point. Engine off/on both lights should come on then the tc light will go out after a second or 2 bulb test cycle.
Press the pedal many times and add the pressure gets too low, the tc light will come back on

Datatek · May 2, 2025

kermit_rr said:
If you start the engine and let the pump cut off, only the abs light should be on at that point. Engine off/on both lights should come on then the tc light will go out after a second or 2 bulb test cycle.
Press the pedal many times and add the pressure gets too low, the tc light will come back on

Yes, you are correct. Familiarity breeds contempt, these days I only notice when something that should happen doesn't happen

Frank_38 · May 5, 2025

ok, i went to land rover today. they want 200 eur to read out the errors. that's a lot of money.
is there a serious place to get the nanocom? where would you buy something like that?

Datatek · May 5, 2025

Frank_38 said:
ok, i went to land rover today. they want 200 eur to read out the errors. that's a lot of money.
is there a serious place to get the nanocom? where would you buy something like that?

www.Blackbox-solutions.com a good investment and they have a good resale value.

pwood999 · May 5, 2025

Datatek said:
www.Blackbox-solutions.com a good investment and they have a good resale value.

@Frank_38 depends where you're based. If outside the EU, check your local exchange rates & make sure you select the "without VAT" option. Also which engine type ? GEMS & EDC are £40 more expensive than Thor Motronic ??

For example, Blackbox price for the GEMS version in GBP is £404, but at today's exchange rate & UK local conversion is £385 when buying in euros ?

kermit_rr · May 5, 2025

Datatek said:
Yes, you are correct. Familiarity breeds contempt, these days I only notice when something that should happen doesn't happen

Don't forget those things that shouldn't happen, but do! Or is that just me?

P38A Brake light is permanently on

Datatek

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kermit_rr

Very

Datatek

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kermit_rr

Very

Datatek

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Frank_38

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Datatek

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pwood999

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kermit_rr

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