Section 352 (Antenna): Inspection

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT ANTENNA MOTOR
1. Connect the positive (+) lead from the battery to terminal 2, 3, 4 and 5 and the negative (-) lead to terminal 6.
2. Check that the motor turns (moves upward).
  NOTE: These tests must be done quickly (within 3 - 5 seconds) to prevent the coil from burning out.
  
  Fig 1: Connecting Positive (+) Lead From Battery To Terminal 2, 3, 4 And 5
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the positive (+) lead from the battery from the terminal 4.
  NOTE: These tests must be done quickly (within 3 - 5 seconds) to prevent the coil from burning out.
  
  Fig 2: Disconnecting Positive (+) Lead From Battery From Terminal 4
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT ANTENNA MOTOR CONTROL RELAY CIRCUIT

Disconnect the connector from the relay and inspect the connector on wire harness side, as shown in the chart below.

Fig 3: Identifying Wire Harness Side

TESTER CONNECTION SPECIFIED CONDITION

Tester connection	Condition	Specified condition
6 - Ground	Constant	Continuity
2 - Ground	Ignition switch OFF	No voltage
2 - Ground	Ignition switch ACC or ON	Battery positive voltage
3 - Ground	Constant	Battery positive voltage
4 - Ground	Ignition switch ACC or ON, and radio switch OFF	No voltage
4 - Ground	Ignition switch ACC or ON, and radio switch ON	Battery positive voltage
5 - Ground	Ignition switch LOCK or ACC	No voltage
5 - Ground	Ignition switch ON	Battery positive voltage