Nissan Maxima Service and Repair Manual: B2190 nats antenna AMP.

Nissan Maxima Service and Repair Manual / Body exterior, doors, roof & vehicle security / Security control system / DTC/circuit diagnosis / B2190 nats antenna AMP.

Description

Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed.

Prohibits the start of engine when an unregistered ID of Intelligent Key is used.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Insert Intelligent Key into the key slot.

  2.  Check "Self Diagnostic Result" with CONSULT.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1.  Press the push-button ignition switch.

  2.  Check "Self Diagnostic Result" with CONSULT.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram".

1. INSPECTION START

Check the case in which DTC is detected.

  •  Case1: It is detected when Intelligent Key is inserted into key slot.

  •  Case2: It is detected after Intelligent Key is inserted into key slot and push-button ignition switch is pressed.

In which case is DTC detected?

Case1.  GO TO 2

Case2.  GO TO 4

2.CHECK KEY SLOT INPUT SIGNAL

  1.  Turn ignition switch OFF.

  2.  Disconnect key slot harness connector.

  3.  Check voltage between key slot harness connector M40 terminal 2 and ground.

3.CHECK KEY SLOT CIRCUIT

  1.  Disconnect BCM harness connector.

  2.  Check continuity between key slot harness connector M40 (A) terminal 2 and BCM harness connector M19 (B) terminal 68.

3. Check continuity between key slot harness connector M40 (A) terminal 2 and ground.

4.CHECK PUSH-IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.

5.CHECK KEY SLOT COMMUNICATION SIGNAL

  1.  Turn ignition switch OFF.

  2.  Disconnect key slot harness connector.

  3.  Check voltage between key slot harness connector M40 terminal 3 and ground.

6.CHECK KEY SLOT COMMUNICATION SIGNAL CIRCUIT

  1.  Disconnect BCM harness connector.

  2.  Check continuity between key slot harness connector M40 (A) terminal 3 and BCM harness connector M19 (B) terminal 69.

3. Check continuity between key slot harness connector M40 (A) terminal 3 and ground.

7.CHECK KEY SLOT GROUND CIRCUIT

  1.  Turn ignition switch OFF.

  2.  Disconnect key slot harness connector.

  3.  Check continuity between key slot harness connector M40 terminal 7 and ground.

8.CHECK INTERMITTENT INCIDENT

Refer to GI-41, "Intermittent Incident".

 Inspection End.

    P1615 diffrence of key
    Description Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed. Prohibits the start of engine when an unregistered ID of Intelligent Key is us ...

    B2191 difference of key
    Description Performs ID verification through BCM and Intelligent Key when push-button ignition switch is pressed. Prohibits the start of engine when an unregistered ID of Intelligent Key is us ...

    Other materials:

    Mechanical key
    The Intelligent Key contains the mechanical key, which can be used in case of a discharged battery. To remove the mechanical key, release the lock knob on the back of the Intelligent Key. To install the mechanical key, firmly insert it into the Intelligent Key until the lock knob return ...

    Seat memory switch
    Description Seat memory switch is installed to the front door LH trim. The operation signal is input to the driver seat control unit when the seat memory switch is operated. Component Function Check 1. CHECK FUNCTION Select ""MEMORY SW 1", "MEMORY SW 2", "SET SW" in "DATA MONITOR" mode ...

    Shift control system
    System Diagram NOTE: The gear ratio is set for each position separately. System Description In order to select the gear ratio that can obtain the driving force in accordance with driver's intention and the vehicle condition, TCM monitors the driving conditions, such as the vehicle speed a ...

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