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Electro Chromic Mirror System: Inspection

INSPECT ELECTRO CHROMIC INNER MIRROR OPERATION
1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 4.
2. Connect the positive (+) leaf from the voltmeter to terminal 2 and the negative (-) lead to terminal 3.
3. Shine an electric light on the mirror, and check that there is battery positive voltage and mirror surface becomes "bright" to "dark".
  If operation is not as specified, replace the inner mirror.
  
  Fig 1: Inspecting Electro Chromic Inner Mirror Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT ELECTRO CHROMIC INNER MIRROR CIRCUIT

Disconnect the connector from the mirror and inspect the connector on the wire harness side, as shown.

If circuit is not as specified, inspect the circuits connected to other parts.

Fig 2: Identifying Electro Chromic Inner Mirror Connector Terminals

G03377086

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CONNECTOR TERMINALS SPECIFIED CONDITION

Tester connection	Condition	Specified condition
4 - Ground	Constant	Continuity
1 - Ground	Ignition switch LOCK or ACC	No voltage
1 - Ground	Ignition switch ON	Battery voltage

INSPECT ELECTRO CHROMIC OUTER MIRROR OPERATION
1. Disconnect the outer mirror connector.
2. Connect the positive (+) lead from the dry through battery to terminal 7 and the negative (-) lead to terminal 15, then check that the mirror surface become "dark".
3. Reconnect to the dry through battery by the reverse order, then check that the mirror surface become "bright".
  If operation is not as specified, replace the mirror assembly.
  
  Fig 3: Inspecting Electro Chromic Outer Mirror Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002