Volkswagen Golf 1999 Service Manual page 839

Components, checking
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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
01-23 .
- Erase learned values and adapt Motronic
Engine Control Module (ECM) -J220- again
Page 24-182 .
- Read readiness code
memory has been erased or Motronic Engine
Control Module (ECM) -J220- was disconnected
from battery positive (B+), readiness code must
be generated again
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Page 01-146 . If DTC
Page 01-149 .
12/2/2005
24-96
Page