Service & Repair Manual

28-21
If specified value is not obtained:
- Replace engine speed (RPM) sensor.
If specified value is obtained:
If specified value is not obtained:
If specified value is obtained:
- Connect multimeter to terminals 2 and 1 (shielding) and to terminals 3
and 1 (shielding) for resistance measurement.
Specification: each (no continuity)
- Replace engine speed (RPM) sensor.
- Connect VAG1598/31 test box at wiring harness to ECM, do not
connect ECM Page 24-17 .
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