Volkswagen Golf / Golf GTI / Jetta. Manual — part 152

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

01-151

Work sequence

- Connect VAG 1551 scan tool (or VAG 1552).

Then switch ignition on and select Motronic
Engine Control Module (ECM) -J220- with the
"Address word" 01. (Connecting scan tool and
selecting Engine Control Module (ECM)

Page

01-12

).

Work step 1: Check DTC memory

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Operate scan tool taking into account the

information on the display:

- Press buttons -0- and -2- for function "Check

DTC memory" and confirm entry with Q button.

X Diagnostic Trouble Codes (DTCs) detected!

The number of Diagnostic Trouble Codes (DTCs)

stored or "No DTC detected!" will be shown on the
display.

If a DTC is stored:

Readiness code

01-152

Repair Diagnostic Trouble Codes
(DTCs) printed out using DTC table:

SAE P0 codes

Page 01-

30

,

SAE P1 codes

Page 01-

58

,

SAE P2 codes

Page 01-

98

,

SAE P3 codes

Page 01-

99

.

If no DTC is stored:

- Press

button.

- Continue with work step 3

Work step 2: Erase DTC memory

Rapid data transfer

HELP

Select function XX

Indicated on display:

Note:

The readiness code is reset or
erased each time DTC memory is
erased.

- Press buttons -0- and -5- for

function "Erase DTC memory"
and confirm entry with -Q- button.

Rapid data transfer

DTC memory is erased!

Indicated on display:

Readiness code

01-153

Note:

If the ignition is switched off between
"Check DTC memory" and "Erase
DTC memory" the DTC memory will
not be erased.

- Press

button.

Work step 3: Adjust the Throttle
Valve Control Module -J338- to the
Motronic Engine Control Module
(ECM) -J220-

Rapid data transfer

HELP

Select function XX

Indicated on display:

- Press buttons -0- and -4- for

function "Initiate basic setting"
and confirm entry with -Q- button.

Basic setting

Input display group number XXX

Indicated on display:

- Press buttons -0-, -6- and -0- for

"Display group number 60" and
confirm entry with -Q- button.

System in basic setting 60

xxx.x %

xxx.x % x

ADP. runs

Indicated on display: (1 to 4

display zones)

- Check specifications in display

zones 3 and 4:

Display zone 3: 0 to 8

Display zone 4: ADP. runs, ADP.

OK.

System in basic setting 60

xxx %

xxx % 8

ADP. OK.

Indicated on display: (1 to 4

display zones)

Readiness code