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Home >> Nissan-Datsun >> 2004 >> Sentra Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - QG18DE >> Trouble Diagnosis >> ECM Terminals and Reference Value >> Preparation

ECM Terminals and Reference Value: Preparation

  1. ECM is located in the right side of the cowl top (behind the strut tower).
  2. Remove ECM harness protector.
    Fig 1: Removing ECM Harness Protector
    G00774723Courtesy of NISSAN MOTOR CO., U.S.A.
  3. When disconnecting ECM harness connector, loosen it with levers as far as they will go as show at right.
  4. Connect a bread-out box (SST) and Y-cable adapter (SST) between the ECM and ECM harness connector.
    • Use extreme care not to touch 2 pins at one time.
    • Data is for comparison and may not be exact.
    Fig 2: Identifying ECM Harness Connector
    G00774724Courtesy of NISSAN MOTOR CO., U.S.A.