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 .

   Continuity should exist. 

4. Also check harness for short to power.

OK or NG 

1. OK: GO TO 6. CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
2. NG: GO TO 5.