Open circuit
- If there is no continuity, the circuit is open. Repair or replace the harness.
- EGR boost sensor terminal C (harness-side) and 104 pin breakout box terminal 90
- EGR boost sensor terminal B (harness-side) and 104 pin breakout box terminal 34
- EGR boost sensor terminal A (harness-side) and 104 pin breakout box terminal 91