DH13 - Check Mechanical Operation of TP Sensor

- Key On, Engine Off.

- Access TP PID with the Scan Tool.

- Slowly move throttle from closed throttle position to wide open throttle position and observe the TP PID for smooth reading change.

- While opening and closing the throttle, is there a sudden drop In the TP PID below 13.23% (0.66 volts) or a sudden Jump in the TP PID above 24.02% (1.20 volts)?

YES -- TP sensor has internal substrate problem. REPLACE TP sensor. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- Go to DH14. DH14 - Check TP Sensor Signal Versus Engine Load While Driving