Nissan Maxima Service and Repair Manual: Outside key antenna

Description

Detects whether Intelligent Key is outside the vehicle.

Integrated in front outside handle (driver side, passenger side) and installed in rear bumper.

Component Function Check

NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

  • Check Intelligent Key relative signal strength
  • Confirm vehicle Intelligent Key antenna signal strength

1. CHECK DOOR REQUEST SWITCH

Check that door request switch operates normally

2. CHECK FUNCTION

Be sure that Intelligent Key is in each outside key antenna detection range.

Diagnosis Procedure

NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

  • Check Intelligent Key relative signal strength
  • Confirm vehicle Intelligent Key antenna signal strength

1. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Turn ignition switch OFF.
  2. Check signal between BCM connector and ground with oscilloscope.

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

2. CHECK OUTSIDE KEY ANTENNA CIRCUIT

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA CIRCUIT

  1. Disconnect BCM and front outside handle connector.
  2. Check continuity between BCM connector and outside key antenna connector.
  3. Check continuity between BCM connector and ground

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA CIRCUIT

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA CIRCUIT

3. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

  1. Replace outside key antenna. (new antenna or other antenna)
  2. Connect BCM and outside key antenna connector.
  3. Check signal between BCM connector and ground with oscilloscope.

Nissan Maxima. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

4. CHECK INTERMITTENT INCIDENT

    Intelligent key warning buzzer

    Remote keyless entry receiver