Volkswagen Golf / Golf GTI / Jetta. Manual — part 1055

01-128

Fuel gauge, checking

If the fuel gauge displays the contents of the fuel

tanks as being too high or too low, the fuel gauge
needle position can be corrected (adapted).

First perform the following procedures:

- Perform Output Diagnostic Test Mode (DTM) for

instrument cluster

Page 01-86

.

If Output Diagnostic Test Mode (DTM) does not

recognize a malfunction, check function of
sender for fuel gauge -G-:

- Check resistance value of sender for fuel gauge

in read measuring value block, display group
002

Page 01-104

.

If Read Measuring Value Block does not indicate

a short or open circuit in the wiring or the fuel
gauge sender, continue with adaptation

Page

01-129

.

Instrument cluster m.y. 2000 through m.y. 2001, On Board Diagnostic (OBD)

13/2/2005

01-129

Fuel gauge, adaptation

Special tools, testers, and
auxiliary items required

WARNING!

Fuel extraction unit VAG 1433 A

(or equivalent, approved fuel
cart)

- Switch off ignition.

- Drain fuel tank completely using

fuel extraction unit, then fill with 7
liters (1.85 gallons) of fuel.

Fire hazard. DO NOT smoke or
work near heaters or have
anything in the area that can
ignite fuel.

Always drain fuel from fuel tank
using an approved fuel cart.

Wear fuel-resistant gloves
whenever working with open
parts of the fuel system.

- Connect scan tool VAG 1551,

select operating mode 1 "Rapid
data transfer", switch on ignition
and enter address word 17
"instrument cluster".

- Press -Q- button to confirm input.

- Press

button until "Select

function"appears in display.

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Press buttons -1- and -0- to select

"Adaptation" function 10.

Instrument cluster m.y. 2000 through m.y. 2001, On Board Diagnostic (OBD)

13/2/2005

01-130

Rapid data transfer

Q

10 - Adaptation

Indicated on display:

- Press -Q- button to confirm input.

Adaptation

Enter channel number XX

Indicated on display:

- Press buttons -3- and -0- to select

adaptation "channel 30".

- Press -Q- button to confirm input.

Channel 30 Adaptation 128

- 1 3-

Indicated on display:

Notes:

At least 60 seconds must pass

between adding fuel and reading
fuel gauge.

Before this time passes, the fuel

gauge reading is unreliable due
to the movement of the added
fuel.

Instrument cluster m.y. 2000 through m.y. 2001, On Board Diagnostic (OBD)

13/2/2005

01-131

- Using button -1-, the adaptation value can be

decreased as low as 120, using button -3
value can be increased as high as 136, e.g. 130.

Channel 30 Adaptation 130

Q

- 1 3-

- Indicated on display:

The fuel gauge is adapted correctly when the

needle rests on the center red demarcation
(reserve)!

When indication is OK:

- Press -Q- button to confirm input.

Channel 30 Adaptation 130

Q

Save modified value?

- Indicated on display:

- Press -Q- button to confirm input.

Channel 30 Adaptation 130

Modified value is saved

- Indicated on display:

- End adaptation of fuel gauge with

button.

Rapid data transfer

Help

Enter address word XX

Indicated on display:

Instrument cluster m.y. 2000 through m.y. 2001, On Board Diagnostic (OBD)

13/2/2005