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Diagnosis Procedure
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
  1. Ignition switch ON.
  2. Check signal between Keyless operation key unit harness connector and ground using oscilloscope.
    (+)(–)ConditionSignal
    (Reference value)
    Keyless operation key unit
    ConnectorTerminal
    M18437GroundWhen the power liftgate request switch is operated with ignition switch ONWhen Keyless operation key is in the antenna detection area
    When Keyless operation key is not in the antenna detection area
    38When Keyless operation key is in the antenna detection area
    When Keyless operation key is not in the antenna detection area
Is the inspection result normal?
Replace Keyless operation key unit. Refer to Removal and Installation.
.
 
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
  1. Ignition switch OFF.
  2. Disconnect Keyless operation key unit connector and outside key antenna (rear bumper) connector.
  3. Check continuity between Keyless operation key unit harness connector and outside key antenna (rear bumper) harness connector.
    Keyless operation key unitOutside key antenna (rear bumper)Continuity
    ConnectorTerminalConnectorTerminal
    M18437B762Existed
    381
  4. Check continuity between Keyless operation key unit harness connector and ground.
    Keyless operation key unit—Continuity
    ConnectorTerminal
    M18437GroundNot existed
    38
Is the inspection result normal?
.
Repair or replace harness.
 
3.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
  1. Replace outside key antenna (rear bumper). (New antenna or other antenna)
  2. Connect Keyless operation key unit and outside key antenna (rear bumper) connector.
  3. Ignition switch ON.
  4. Check signal between Keyless operation key unit harness connector and ground using oscilloscope.
    (+)(–)ConditionSignal
    (Reference value)
    Keyless operation key unit
    ConnectorTerminal
    M18437GroundWhen the power liftgate request switch is operated with ignition switch ONWhen Keyless operation key is in the antenna detection area
    When Keyless operation key is not in the antenna detection area
    38When Keyless operation key is in the antenna detection area
    When Keyless operation key is not in the antenna detection area
Is the inspection result normal?
Replace outside key antenna (rear bumper). Refer to Removal and Installation.
Replace Keyless operation key unit. Refer to Removal and Installation.