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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1706: PNP Switch >> Diagnostic Procedure >> 8. Check PNP Switch Input Signal Circuit For Open And Short-III
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8. Check PNP Switch Input Signal Circuit For Open And Short-III

  1. Disconnect ECM harness connector.
  2. Check harness continuity between ECM terminal 80 and fuse block (J/B) No. 1 terminal 19D.

    Refer to WIRING DIAGRAM .

    Continuity should exist. 

  3. Also check harness for short to ground and short to power.

OK or NG 

  1. OK: GO TO 10. CHECK FUSE BLOCK (J/B) NO. 1 .
  2. NG: GO TO 9.