Code 16 (Cylinder Reference)

CYLINDER REFERENCE
Explanation
This trouble code is stored when the cylinder reference sensor on cylinder 6 or 12 no longer detects an ignition signal for a certain period of time.

NOTE: The injection signal is reduced to a minimum. Fuel is no longer injected (catalytic converter protection), however, the Electronic Throttle Control (EML) does not take up the emergency program since an injection signal is still applied.

Possible Causes
- Cylinder reference sensor or supply wires defective
- Cylinder 6 or 12 receives no ignition voltage signal
- No spark at the spark plug of cylinder 6 or 12
- Ignition coil defective
- Ignition output stage of Digital Motor Electronic (DME) control unit defective

Troubleshooting
- Proceed with displayed scan tool diagnostic instructions where applicable.