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Diagnosis Procedure
1.CHECK FUSE
Check that the following fuse is not blown (open).
Signal nameFuse No.
Battery power supply53 (5 A)
Is the fuse blown (open)?
Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).
.
 
2.CHECK POWER SUPPLY CIRCUIT
  1. Disconnect Keyless operation key unit connector.
  2. Check voltage between Keyless operation key unit harness connector and ground.
    (+)(−)Voltage
    Keyless operation key unit
    ConnectorTerminal
    M1841GroundBattery voltage
Is the inspection result normal?
.
Repair or replace harness.
 
3.CHECK GROUND CIRCUIT
Check continuity between Keyless operation key unit harness connector and ground.
Keyless operation key unit—Continuity
ConnectorTerminal
M18429GroundExisted
Is the inspection result normal?
INSPECTION END
Repair or replace harness.