DD22 - Check Solenoid Circuit Continuity

- Key "OFF".

- Solenoid disconnected.

- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires. Service as necessary.

- Install breakout box, leave PCM disconnected.

For EGR Atmospheric (EGRA) solenoid:

- Measure the resistance between test pin 12 at the breakout box and the EGRA circuit at the solenoid vehicle harness connector.

For EGR Vacuum (EGRV) solenoid:

- Measure the resistance between test pin 33 at the breakout box and the EGRV circuit at the solenoid vehicle harness connector.

- Is the resistance less than 5.0 ohms?

Yes -- Go to DD23. DD23 - Check Solenoid Circuit: Short to Power/Short to Ground

No -- Service open circuit. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)