Toyota
Nissan Versa
 Sedan Service Manual
Body exterior, doors, roof & vehicle security » Door & lock (DLK) » B2621 Inside antenna
Diagnosis Procedure

Regarding Wiring Diagram information, refer to DLK "INTELLIGENT KEY SYSTEM : Wiring Diagram".

1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Turn ignition switch ON.
  2. Check signal between BCM harness connector and ground using oscilloscope. 

Is the inspection result normal?

YES >> Replace BCM. Refer to BCS"Removal and Installation".

NO >> GO TO 2.

2.CHECK INSIDE KEY ANTENNA CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect BCM connector and inside key antenna (instrument center) connector.
  3. Check continuity between BCM harness connector and inside key antenna (instrument center) harness connector.   
  4. Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace harness.

3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

  1. Replace inside key antenna (instrument center). (New antenna or other antenna)
  2. Connect BCM connector and inside key antenna (instrument center) connector.
  3. Turn ignition switch ON.
  4. Check signal between BCM harness connector and ground using oscilloscope. 

Is the inspection result normal?

YES >> Replace inside key antenna (instrument center). Refer to DLK "INSTRUMENT CENTER : Removal and Installation".

NO >> Replace BCM. Refer to BCS "Removal and Installation".

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