Polygon motor (laser scanner unit) error
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Polygon motor (laser scanner unit) error: POLRDYN signal does not go low within 10 s after POLONN signal goes low.
Causes and procedures:
1. Defective harness between polygon motor and main PWB (YC11), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
2. Defective harness between main PWB (YC12) and engine PWB (YC12), or improper connector insertion. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness.
3. Defective laser scanner unit. Replace the laser scanner unit.
4. Defective engine PWB. Replace the engine PWB.
5. Defective main PWB. Replace the main PWB.