Nissan Maxima Service and Repair Manual: U0100 lost communication (ECM A)

Nissan Maxima Service and Repair Manual / Transmission & driveline / Transaxle & transmission / DTC/circuit diagnosis / U0100 lost communication (ECM A)

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Start the engine and wait for at least 5 seconds.
  2.  Check the first trip DTC.

Diagnosis Procedure

For the diagnosis procedure, refer to LAN-15, "Trouble Diagnosis Flow Chart".

    DTC/circuit diagnosis
    ...

    U1000 CAN comm circuit
    Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excelle ...

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    Map lights
    To turn the map lights on, push the switches. To turn them off, push the switches again. CAUTION Do not use for extended periods of time with the engine stopped. This could result in a discharged battery. Personal lights To turn the rear personal lights on, push the switch. To turn the ...

    ECM branch line circuit
    Diagnosis Procedure 1.CHECK CONNECTOR  Turn the ignition switch OFF.  Disconnect the battery cable from the negative terminal.  Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side). &nb ...

    Front door speaker
    Removal and Installation REMOVAL Remove the front door finisher. Refer to INT-18, "Removal and Installation". Remove the front door speaker screws (A). Disconnect the harness connector from the front door speaker (1) and remove. Remove the front door speaker spacer scr ...

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