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Home >> Infiniti >> 2004 >> G35 x >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (2004 - Engine Control System - Coupe) >> DTC P0550: PSP Sensor >> Diagnostic Procedure >> 3. Check PSP Sensor Ground Circuit For Open And Short

3. Check PSP Sensor Ground Circuit For Open And Short

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  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check harness continuity between PSP sensor terminal 3 and ECM terminal 67.

    Refer to Wiring Diagram.

    1. Continuity should exist. 
  4. Also check harness for short to ground and short to power.

OK or NG 

OK: GO TO 4.

NG: Repair open circuit or short to ground or short to power in harness or connectors.