Volkswagen Golf / Golf GTI / Jetta. Manual — part 210

24-94

If the specifications are not
obtained:

If no sensor Diagnostic Trouble
Code (DTC) is detected:

Repair Manual, Electrical

Equipment; Repair Group 92

- Measure sensor resistance

between connector terminals 2
and 3 to sensor.

Specification: 480 to 1000

- Check sensor for short circuit

between terminals 1 and 2 as well
as 1 and 3.

Specification:

- Replace Engine Speed (RPM)

Sensor -G28-

Page 24-16

,

item 16 .

- Check DTC memory, repair

malfunctions if necessary and
then erase DTC memory

Page

01-23

.

- Read readiness code

Page 01-

146

. If DTC memory has been

erased or Motronic Engine
Control Module (ECM) -J220- was
disconnected from battery
positive (B+), readiness code
must be generated again

Page

01-149

.

- Remove wiper arms and cowl

panel:

Components, checking

24-95

- Connect VAG 1598/31 test box to

control module wiring harness.
Engine Control Module (ECM) -
J220- remains disconnected.

- Check wiring for open circuit

between test box and 3-pin
connector referring to Electrical
Wiring Diagrams.

Terminal 1 and socket 108

Terminal 2 and socket 90

Terminal 3 and socket 82

Wire resistance: max. 1.5

- Additionally check wiring for short

to one another, to vehicle Ground
(GND) and to battery positive.

Specification:

Components, checking

24-96

If no wiring malfunction is detected:

- Remove sensor and check sensor wheel for

secure mounting, damage and run-out.

Note:

There is a larger gap on the sensor wheel. This

gap is the reference mark and does not mean
that the sensor wheel is damaged.

If no Diagnostic Trouble Code (DTC) is detected

on sensor wheel:

- Replace Motronic Engine Control Module (ECM)

-J220-

Page 24-173

.

- Check DTC memory, repair malfunctions if

necessary and then erase DTC memory

Page

01-23

.

- Erase learned values and adapt Motronic

Engine Control Module (ECM) -J220- again

Page 24-182

.

- Read readiness code

Page 01-146

. If DTC

memory has been erased or Motronic Engine
Control Module (ECM) -J220- was disconnected
from battery positive (B+), readiness code must
be generated again

Page 01-149

.

Components, checking

24-97

Fuel injectors, checking

Special tools, materials and equipment

VAG 1526 or Fluke 83 Hand multimeter or VAG

1715 multimeter

VAG 1527 LED test light

VAG 1594 Adapter set

VAG 1598/31 test box

Electrical Wiring Diagrams

Test requirements

The fuses must be OK.

The battery voltage must be at least 11.5 V.

All electrical accessories, e.g. lights and rear

window defroster must be switched off.

If the vehicle is equipped with air conditioning,

it must be turned off.

Selector lever must be in position "P" or "N" on

vehicles with an automatic transmission.

Components, checking