Volkswagen Golf / Golf GTI / Jetta. Manual — part 142

01-147

Must appear on display when all
diagnosis functions have been
successfully completed:

Readiness code

00000000 - Test complete

Indicated on display:

- Press

button.

- Press buttons -0- and -6- for

function "End output" and confirm
entry with -Q- button.

- Switch off ignition.

Readiness code

00101101 - Test not complete

Appears on display:

One of the diagnostic checks has not
run through successfully:

- Press

button.

- Generate readiness code

Page

01-149

.

Readiness code

01-148

Significance of figures in 8 digit number block, display zone 1 - Readiness code

The readiness code is generated only when all display zones show 0

1 2 3 4 5 6 7 8

Diagnostic function

0 Three Way Catalytic Converter (TWC)

0 Three Way Catalytic Converter (TWC) heating (currently no

diagnosis/always "0")

0

Evaporative Emissions (EVAP) Canister system (Tank

ventilation system)

0

Secondary air system

0

Air conditioner (currently no diagnosis/always "0")

0

Oxygen Sensor (O2S)s

0

Oxygen Sensor (O2S) heating

0

Exhaust gas recirculation (not installed/always "0")

Readiness code

01-149

Generating readiness code

Special tools, workshop
equipment, testers, measuring
instruments and auxiliary items
required

Note:

All functions which could previously
be performed with VAG 1551/1552
can also be performed with the
vehicle diagnostic, testing and
information system VAS 5051.

Test prerequisites

VAG 1551 scan tool (or VAG

1552) with VAG 1551/3 Adapter
cable

All fuses must be OK.

Readiness code

01-150

Electrical Wiring Diagrams,

Troubleshooting & Component
Locations

The main fuses must be OK.

The battery voltage must be at

least 11.5 V.

If the vehicle is equipped with air

conditioning, this must be
switched off.

Selector lever must be in

position "P" or "N" on vehicles
with an automatic transmission.

Exhaust system between Three

Way Catalytic Converter (TWC)
and cylinder head must be free
of leaks

Ignition switched on, engine not

running.

Fuel Pump (FP) relay -J17- must

be OK., checking:

The signal from Brake Light

Switch -F- and Brake Vacuum
Vent Valve Switch -F47- -F85-
must be OK., checking

Page

24-206

.

Engine Coolant Temperature

(ECT) must be 85...110 C

display group 4, display zone

3.

Intake Air Temperature (IAT)

less than 80 C display group
4, display zone 4.

Three Way Catalytic Converter

(TWC) temperature must be at
least 380 C

display group

34, display zone 2.

Readiness code