[Previous][Next]
Diagnosis Procedure
1.CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL
Check signal between push-button ignition switch harness connector and ground using an oscilloscope.
(+)(–)ConditionSignal
(Reference value)
Push-button ignition switch
ConnectorTerminal
M172GroundKeyless operation key battery is removed and brake pedal is depressedWhen a registered Keyless operation key backside is contacted to push-button ignition switch0 V
Other than above
3When a registered Keyless operation key backside is contacted to push-button ignition switch0 V
Other than above
Is the inspection result normal?
.
.
 
2.CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL CIRCUIT
  1. Ignition switch OFF.
  2. Disconnect Keyless operation key unit connector and push-button ignition switch connector.
  3. Check continuity between push-button ignition switch harness connector and Keyless operation key unit harness connector.
    Push-button ignition switchKeyless operation key unitContinuity
    ConnectorTerminalConnectorTerminal
    M172M18419Existed
    320
  4. Check continuity between push-button ignition switch harness connector and ground.
    Push-button ignition switch—Continuity
    ConnectorTerminal
    M172GroundNot existed
    3
Is the inspection result normal?
.
Repair or replace harness.
 
3.REPLACE PUSH-BUTTON IGNITION SWITCH
Replace push-button ignition switch. Refer to Removal and Installation.
Is the inspection result normal?
INSPECTION END
.
 
4.REPLACE INTELLIGENT KEY UNIT
Replace Keyless operation key unit. Refer to Removal and Installation.
: INSPECTION END