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Diagnosis Procedure
1.CHECK CONNECTOR
  1. Turn the ignition switch OFF.
  2. Disconnect the battery cable from the negative terminal.
  3. Check the terminals and connectors of the Keyless operation key unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
.
Repair the terminal and connector.
 
2.CHECK HARNESS FOR OPEN CIRCUIT
  1. Disconnect the connector of Keyless operation key unit.
  2. Check the resistance between the Keyless operation key unit harness connector terminals.
    Keyless operation key unit harness connectorResistance (Ω)
    Connector No.Terminal No.
    M18467Approx. 54 – 66
Is the measurement value within the specification?
.
Repair the Keyless operation key unit branch line.
 
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the Keyless operation key unit. Refer to Diagnosis Procedure.
Is the inspection result normal?
(Present error)Replace the Keyless operation key unit. Refer to Removal and Installation.
(Past error)Error was detected in the Keyless operation key unit branch line.
Repair the power supply and the ground circuit.