Altima 2007-2009

General Information

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DTC Precaution



Specific to:

Nissan Altima 2007-2008

Warnings for some DTCs cannot be cleared only by repairing the malfunctioning parts. If the warning is displayed after repair work, the DTC should be cleared after turning the ignition switch OFF.


CAUTION
If a DTC for a malfunctioning part reappears after it was cleared, then it has been stored again.

Handling Precautions



Specific to:

Nissan Altima 2007-2008

  1. Do not remove or install Electronically Controlled Brake parts such as the steering angle sensor, yaw rate/side/decel G sensor or brake stroke sensor except when required, as they cannot be adjusted correctly after removal or installation.
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  3. Be sure to perform preparation before work and confirmation after work is completed by following the direction in the repair manual when working on the Electronically Controlled Brake system.
  4.  
  5. Be sure to remove and install the ECU, actuator, each sensor, etc. with the ignition switch OFF unless it is not specified in the inspection procedure.
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  7. Be sure to remove the 2 main relays before removal and installation, or replacement of the Electronically Controlled Brake parts.
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  9. The removal or installation of the actuator, master cylinder or stroke simulator as well as some other procedures can cause the fluid level to drop below the fluid reservoir port. If this happens when performing such work, be sure to remove the 2 motor relays until the bleeding of the air in the pipeline is completed.
    NOTE



    When the pump motor is operated with the air in the brake actuator hose, bleeding the air becomes difficult due to air in the actuator.
     
    The brake ECU may operate the stroke simulator and drive the pump motor even when the ignition switch OFF.
     
    With the ignition switch OFF, the brake ECU can be operated for 2 minutes after the brake operation is finished.
     

  10.  
  11. Removal of the main relay and motor relay.
    1. Wait for 2 minutes after turning the ignition switch OFF, stopping the brake pedal operation and closing the driver door before removing the 2 relays.
      NOTE
      The above situation occurs when the pump motor operates to prepare for the next operation just before the brake control system turns OFF.

    2.  

  12.  
  13. If the ECU, brake actuator, or a sensor has been removed and installed, it is necessary to check the system for problems after the parts have been reassembled. Check for DTCs using the CONSULT-III, also check that system functions and signals received by the ECU are normal using Test Mode.
  14.  

Troubleshooting Precautions



Specific to:

Nissan Altima 2007-2008

  1. When there is a malfunction with terminal contact points or part installation problems, removal and installation of the suspected problem parts may return the system to the normal condition either completely or temporarily.
  2.  
  3. In order to determine the malfunctioning area, be sure to check the conditions at the time the malfunction occurred, such as DTC output and the Freeze Frame Data, and record it before disconnecting each connector or removing and installing parts.
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  5. Since the system may be influenced by malfunctions in systems other than the brake control system, be sure to check for DTCs in order systems.
  6.  

 
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