DL13 - Check EVR Circuit Continuity
- Key "OFF".
- EGR Vacuum Regulator (EVR) solenoid disconnected.
- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.
- Install breakout box, leave PCM disconnected.
- Measure resistance between test pin 33 at the breakout box and EVR circuit at the EVR solenoid vehicle harness connector.
- Is resistance less than 5.0 ohms?
Yes -- Go to DL14. DL14 - Check EVR Circuit For Short to Power or Ground
No -- Service open circuit. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)