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Home >> Nissan-Datsun >> 2023 >> Titan PRO-4X >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Removal And Installation >> ECM >> Removal and Installation

Removal and Installation

REMOVAL 

CAUTION:
  • If replacing the ECM, 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 negative terminal. 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).
    GNSDB50514Courtesy of NISSAN
  8. Remove bolts and ECM bracket (1) from vehicle (if necessary).

INSTALLATION 

Installation is in the reverse order of removal.

ECM nut torque: 5.5 N.m (0.57 kg-m, 49 in-lb)
CAUTION:

If replacing ECM, perform "ADDITIONAL SERVICE WHEN REPLACING ECM". Refer to Description .