HE2 - Induce Opposite DPFE Signal

- Key Off.

- Disconnect DPFE sensor vehicle harness connector.

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

- Key On, Engine Off.

NOTE: If a Scan Tool error occurs, remove jumper immediately and go directly to HE3. HE3 - Measure VREF Voltage at DPFE Sensor Harness Connector

- Access DPFE PID with a Scan Tool.

- Is DPFE SIG PID value between 4.0 and 6.0 volts?

YES -- REPLACE damaged DPFE sensor. RECONNECT all components. Complete PCM reset to clear DTCs. Clearing Diagnostic Trouble Codes

Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- REMOVE jumper GO to HE3. HE3 - Measure VREF Voltage at DPFE Sensor Harness Connector