HE13 - Induce Opposite DPFE Signal

- Key Off.

- Disconnect DPFE sensor vehicle harness connector.

- Connect a jumper wire between the sensor DPFE SIG circuit and SIG RTN circuit at the DPFE sensor vehicle harness connector.

- Key On, Engine Off.

NOTE: If a Scan Tool error occurs, remove immediately and go directly to HE18. HE18 - Check DPFE SIG For Short to VREF In Harness

- Access DPFE PID with a Scan Tool.

- Is DPFE SIG PID value less than 0.05 volts?

YES -- REMOVE jumper. GO to HE14. HE14 - Verify That VREF Is In Range

NO -- Unable to induce opposite signal. GO to HE16. HE16 - Check DPFE SIG For Open In Harness