Short Circuit

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- EGR valve terminal E (harness-side) and GND
- EGR valve terminal A (harness-side) and GND
- EGR valve terminal B (harness-side) and GND
- EGR valve terminal F (harness-side) and GND
- EGR valve terminal C or D (harness-side) and power supply
  
  Fig 1: Identifying EVAP System Leak Detection Pump, Main Relay & PCM Connector Terminals
  Courtesy of MAZDA MOTORS CORP.
Remove the EGR valve, and inspect for any damage or clogging.
- If there is no damage or no clogging, replace the EGR valve.