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Home >> Infiniti >> 2004 >> Q45 >> 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.
    1. Continuity should exist. 
  3. Also check harness for short to ground and short to power.

OK or NG 

OK: GO TO 10.

NG: GO TO 9.