Open Circuit

If there is no continuity, the circuit is open. Repair or replace the harness.
- CKP circuit (CKP sensor connector terminal B and PCM connector terminal 3Y).
- Power circuit (CKP sensor connector terminal A and main relay terminal D through common connector).
- GND circuit (CKP sensor connector terminal C and PCM connector terminal 4A through common connector).
Fig 1: Locating Main Relay & CKP Sensor Harness side Connector Terminals
Courtesy of MAZDA MOTORS CORP.