Circuit Open/Short Inspection [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
- EGR valve terminal A and PCM terminal 2AR
- EGR valve terminal B and PCM terminal 2AY
- EGR valve terminal E and PCM terminal 2AU
- EGR valve terminal F and PCM terminal 2AV
- EGR valve terminal C and main relay terminal A
- EGR valve terminal D and main relay terminal A
Short circuit
• If there is continuity, the circuit is short. Repair or replace the wiring harness.
- EGR valve terminal A and body GND
- EGR valve terminal B and body GND
- EGR valve terminal E and body GND
- EGR valve terminal F and body GND

Circuit Open/Short Inspection [Z6]

1. Disconnect the PCM connector. (See
2. Inspect the following wiring harnesses for an open or short circuit (continuity check).
Open circuit
• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
- EGR valve terminal A and PCM terminal 2V
- EGR valve terminal B and PCM terminal 2R
- EGR valve terminal C and PCM terminal 2BG
- EGR valve terminal D and PCM terminal 2BG
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