On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT WIRELESS DOOR LOCK DIAGNOSIS MODE
1. Start the diagnosis mode.
  HINT:
  
  This mode is to check the condition of the signal transmission and reception among the transmitter, the receiver and ECU. If all transmitters for a vehicle do not respond, there is a possibility that the receiver or the wire harness is faulty.
  1. Insert the key into the ignition key cylinder.
  2. Remove the key from the ignition key cylinder.
  3. Insert the key into the ignition key cylinder.
  4. Turn the ignition switch ON within 5 seconds.
  5. Repeat turning the ignition switch OFF to ON 9 times within 30 seconds.
  6. Enter the diagnosis mode, and make sure that the taillight lights up.
    
    Fig 1: Inspecting Wireless Door Lock Diagnosis Mode Signal Blinking Pattern
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Finish the Diagnosis Mode.
  1. During the Diagnosis mode, turn the ignition switch from OFF to ON to go back to the normal mode. At this time make sure that the taillight lights up.
3. Diagnosis Mode Check.
  1. Check how the taillight lights up when pressing each transmitter switch.
    
    Fig 2: Diagnosis Mode Check Blinking Pattern
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. LOCK switch
    2. UNLOCK switch
    3. Luggage door switch
    4. Disagreement of recognition code or rolling code
      HINT:
      
      If this is detected in the Diagnosis Check, conduct the recognition code registration.
    5. No response from the taillight
      HINT:
      
      Conduct the following checks.
      - Check the door control transmitter module.
      - Check the door control receiver.

INSPECT DOOR CONTROL RECEIVER

Disconnect the connector from the receiver.

Check the continuity of the wire harness side connector.

DOOR CONTROL RECEIVER (DISCONNECTED)

Tester Connection	Specified Condition
1 (E) - Body ground	Continuity

If the result is not as specified, repair or replace the harness and connector.

Measure the voltage of the wire harness side connector.

Standard voltage

DOOR CONTROL RECEIVER (VOLTAGE)

Tester Connection	Specified Condition
5 (+B) - Body ground	4.6 to 5.4 V

Fig 3: Inspecting Door Control Receiver

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, repair or replace the harness and connector.

Reconnect the receiver connector.

Measure the voltage of the connector.

Standard voltage

DOOR CONTROL RECEIVER (RECONNECTED)

Tester Connection	Condition	Specified Condition
2 (RDA) - Body ground	No key in ignition key cylinder, all doors closed, and transmitter switch OFF to ON	Below 1 V -> Approximately 6 to 7 V -> Below 1 V

If the result is not as specified, replace the receiver.