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Home >> Nissan-Datsun >> 2020 >> Titan SL, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2 Of 2) >> Removal And Installation >> ECM >> Removal and Installation >> Removal

Removal and Installation: Removal

CAUTION:
  • Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to Description .
  • When replacing the ECM, a new ECM must be used. The functions controlled by the ECM do not operate properly if an ECM from another vehicle is used.
  1. Disconnect the battery or batteries negative terminal(s). Refer to Battery Disconnect .
  2. Remove the cowl top extension. Refer to Removal and Installation - Cowl Top Extension .
  3. Remove the front wheel and tire (RH) using power tool. Refer to Removal and Installation .
  4. Remove the front fender protector (RH). Refer to Removal and Installation - Front Fender Protector .
  5. Position the relay box and IDPM/ER aside.
  6. Disconnect harness connector from the ECM.
  7. Remove nuts (A) and ECM (2) from ECM bracket (1).
    Fig 1: ECM Nuts With Torque Specification
    GNSALBIA3006Z-006Courtesy of NISSAN NORTH AMERICA, INC.
  8. Remove bolts and ECM bracket (1) from vehicle (if necessary).
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