SERVICES AND MODULES · DRIVEABILITY

Creep mode disable (trucks)

Disabling low-speed creep on trucks with the Delphi engine controller - DAF, Kenworth, Peterbilt and others. A commercial vehicle job, not a car one.

5 vehicles and control modules listed.

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This one is for trucks. On DAF and the other PACCAR-engined lorries running the Delphi
engine controller, and a few others on the same platform, the engine management includes a
low-speed creep function that lets the vehicle inch forward under its own control when the
driver comes off the brake.

Some operators want it gone. Yard work, coupling and uncoupling, and manoeuvring in tight
depots are the usual reasons – a driver who wants the truck to stay exactly where it is until
they say otherwise.

What the calibration does

The creep function is disabled in the engine controller, and the vehicle behaves like a
conventional manual at rest: nothing happens until the driver asks for it. Everything else in
the calibration is left as it was.

Before we do it

We ask how the vehicle is used and who drives it, because creep exists for a reason and a
driver who is used to it will notice its absence. This is a fleet decision as much as a
technical one, and we would rather have that conversation than reverse the job a week later.

For the trade

This is one of the jobs available through our dealer file service. Send the
original read, tell us the vehicle and what you need, and the file comes back
checked. If a job carries mechanical conditions on the car, they are listed in the
coverage table below and they apply to your customer’s vehicle too.

More about becoming a JFA tuning dealer

COVERAGE

Vehicles and control modules we cover

Creep mode disable (trucks) is proven on 5 recorded vehicle and control module combinations, across 0 car and van makes. Search for your make or your ECU number below. If yours is not listed it may still be possible, so it is worth asking.

DAF 1 control module

Control module	What the job involves
DELPHI ETC3	No extra steps

Hyundai Truck 1 control module

Control module	What the job involves
DELPHI ETC3	No extra steps

Kenworth Truck 1 control module

Control module	What the job involves
DELPHI ETC3	No extra steps

Peterbilt Truck 1 control module

Control module	What the job involves
DELPHI ETC3	No extra steps

Tatra 1 control module

Control module	What the job involves
DELPHI ETC3	No extra steps

HOW TO READ THIS

Each row is a control module we have a working solution for. The note tells you what typically also has to happen on the car, because where a part has to be unplugged that is mechanical work on the vehicle, not something a file alone can do.

We have more than one route to most of these jobs, so the requirements on your car are confirmed when we look at it rather than taken from this table. Treat the notes as what to expect, not as a fixed instruction.

Marked New means the solution is recent, so we check those individually before quoting.

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