[Previous][Next]
Diagnosis Procedure
1.CHECK KEYLESS OPERATION REAR INNER ANTENNA INPUT SIGNAL 1
  1. Turn the power supply mode of the electric motor switch to ON.
  2. Check signal between keyless operation key unit harness connector and ground using oscilloscope.
    (+)(–)ConditionSignal
    (Reference value)
    Keyless operation key unit
    ConnectorTerminal
    M18433GroundPress electric motor switchWhen keyless operation key is in the passenger compartment
    When keyless operation key is not in the passenger compartment
    34When keyless operation key is in the passenger compartment
    When keyless operation key is not in the passenger compartment
Is the inspection result normal?
Replace keyless operation key unit. Refer to REMOVAL AND INSTALLATION.
.
 
2.CHECK KEYLESS OPERATION REAR INNER ANTENNA CIRCUIT
  1. Turn the power supply mode of the electric motor switch to OFF.
  2. Disconnect keyless operation key unit connector and keyless operation rear inner antenna connector.
  3. Check continuity between keyless operation key unit harness connector and keyless operation rear inner antenna harness connector.
    Keyless operation key unitKeyless operation rear inner antennaContinuity
    ConnectorTerminalConnectorTerminal
    M18433B772Existed
    341
  4. Check continuity between keyless operation key unit harness connector and ground.
    Keyless operation key unit—Continuity
    ConnectorTerminal
    M18433GroundNot existed
    34
Is the inspection result normal?
.
Repair or replace harness.
 
3.CHECK KEYLESS OPERATION REAR INNER ANTENNA INPUT SIGNAL 2
  1. Replace keyless operation rear inner antenna. (New antenna or other antenna)
  2. Connect keyless operation key unit connector and keyless operation rear inner antenna connector.
  3. Turn the power supply mode of the electric motor switch to ON.
  4. Check signal between keyless operation key unit harness connector and ground using oscilloscope.
    (+)(–)ConditionSignal
    (Reference value)
    Keyless operation key unit
    ConnectorTerminal
    M18433GroundPress electric motor switchWhen keyless operation key is in the passenger compartment
    When keyless operation key is not in the passenger compartment
    34When keyless operation key is in the passenger compartment
    When keyless operation key is not in the passenger compartment
Is the inspection result normal?
Replace keyless operation rear inner antenna. Refer to Removal and Installation.
Replace keyless operation key unit. Refer to REMOVAL AND INSTALLATION.