download Special tools, testers and auxiliary items VAG 1598/18 test box
Multimeter (Fluke 83 or equivalent) VAG 1527B voltage tester Connector
test kit VW 1594 Wiring diagram Checking voltage supply Disconnect
3-pin connector from ignition coil. Connect multimeter using test leads
from VW 1594 to measure voltage at terminals 1 and 3 of connector. Turn
on ignition. Measure voltage between terminals 1 and 3.
Specification: 9-14.5 volts Turn off ignition. If the specification is
not attained: Check wire between 3-pin connector contact 1 and Ground
for open circuit according to wiring diagram. Wire resistance: Max. 1.5
ohms ( Check wire between 3-pin connector contact 3 and relay plate
for open circuit according to wiring diagram. Resistance: max. 1.5 ohms
( If no wiring malfunction
is detected and voltage was present between
terminals 1 and 3: Replace ignition coil -N152- => Page 28-2, item
7. If no wiring malfunction is detected and no voltage was present
between terminals 1 and 3: Replace Engine Control Module (ECM) -J220-
=> Page 24-9, item 12. Read the readiness code => page 01-32. If
DTC memory has been erased, verify repair via appropriate display group
=> Page 01-34, Readiness code, creating. Checking activation
Disconnect the engine harness center connector => Page 24-2, item 11.
) ) Connect VAG 1527B voltage tester with test leads from VW 1594 and
adapters VW 1594/15 to terminals 2 and 3 of the connector. Operate
starter and check ignition signal from ECM. LED must flicker