P38A Brake light is permanently on

Datatek · 2025-05-01T19:33:09+0100

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 · 2025-05-01T19:37:30+0100

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 · 2025-05-01T19:40:23+0100

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 · 2025-05-01T19:43:54+0100

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

P38A Brake light is permanently on

Datatek

Well-Known Member

kermit_rr

Very

Datatek

Well-Known Member

kermit_rr

Very

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