4. Check PSP Sensor Ground Circuit For Open And Short

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between PSP sensor terminal 3 and ECM terminal 89. Refer to Wiring Diagram.
   1. Continuity should exist. 
4. Also check harness for short to power.

OK or NG 

OK : GO TO 6.

NG : GO TO 5.